Salt and pure sodium chloride; sea water

Lifecycle status: Candidate
Content maturity: Authored methodology
Current version: No published versionLast updated2026-10-01
Readiness: Review required

Methodology and translation states come from the source record; publishing this website does not change their review status.

Content languages

zh-CN · Aligned

Status, classification and source details

Readiness

Warnings methodology_not_reviewed Authored methodology is candidate guidance and still requires methodology review.

Classification mapping

CPC 3.0:16200 · exact

Source

library/pcrs/ores-and-minerals-electricity-gas-and-water/other-minerals/salt-and-pure-sodium-chloride-sea-watersha256:9c9a8184a4c0…

1. Scope and Applicability

Supply of salt and pure sodium chloride, including actual rock salt, harvested solar salt, vacuum/open-pan salt, refined grades, declared aqueous NaCl solutions, table or denatured salt and actual anti-caking/free-flowing variants that retain salt product identity; also supply of sea water itself at a separately declared intake/loading or receipt gate. Each dataset fixes one accepted product state, route and gate, not a weighted mixture of solid salt and sea water. Salt routes include actual mining or solution extraction, sea/saline-water intake, solar concentration/harvesting, supplied-salt dissolution or washing, brine purification, mechanical evaporation/crystallization, dewatering/drying, additive dosing and packaging only where performed. Sea-water product supply includes actual marine abstraction, pumping, screening/filtration, storage and declared delivery without forcing concentration, evaporation, crystallization or desalination. Sea water remains mixed saline water, not pure NaCl or freshwater. Externally supplied sea water/brine is a product input with upstream provider, distinct from elementary marine-water abstraction; internal brine transfers cancel. Include attributable intake/pond/mine development, lifetime rehabilitation, controls, wastes and measured releases through the gate. Chloralkali, soda ash, desalinated fresh water, food formulation and downstream salt use are separate downstream product systems. Cultured NaCl crystals for optical or other separately classified articles and medicines are outside this bulk-material supply scope. bgs-salt-2006, usgs-salt-2018, wco-salt-2022

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.ores-and-minerals-electricity-gas-and-water.other-minerals.salt-and-pure-sodium-chloride-sea-water
classification_refs	CPC 3.0:16200
covered_products	Salt and pure sodium chloride as declared solid grades or aqueous solutions, with actual anticaking/free-flowing agents; sea water supplied as a product, distinct from manufactured brine
excluded_products	Chlorine, caustic soda, soda ash and other chemical transformations; desalinated freshwater; other isolated mineral salts as the reference product; formulated foods or medicines, cultured/optical NaCl articles, downstream uses and transport-only services
representative_product	Compatible refined sodium chloride at plant
production_route	Intake pond and mine development; Halite and solution extraction; Sea-water intake and supply; Solar salt concentration and harvesting; Salt and brine purification; Mechanical crystallization and drying; Saline water waste and emissions control; Salt or sea-water product dispatch
market_state	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate

3. Reference Flow

Field	Value
What	Supply1 kg net accepted as-received product in one declared salt, NaCl solution or sea-water state; solution/sea-water kg is not dry salt kg
How much	1 kg
How well	site/year; one product state and selected gate; actual rock/solution/solar/mechanical evaporation/refining/sea-water supply route; origin/geology or marine intake coordinates and season; accepted net mass and stocks/returns; salt free moisture and dry-basis NaCl assay; solution NaCl mass fraction; sea-water salinity method and ionic composition, not salinity as pure NaCl; measured density at temperature if volume conversion; grade/particle size; each actual additive and fraction; bulk/bagged/tank/pipeline; upstream provider and allocation; transport included; pond climate and measured water/ion balance; waste fate/discharge compartment; attributable lifetime development/closure. Representative UUID is only compatible ≥99.5% NaCl Product/Mass at plant, never all salts, brine or sea water
How long or cycle	One gate supply within a declared production period
reference_flow_link	`final_product`

Field	Value
Reference amount	1
Reference product flow	Sodium chloride `a413ea86-0887-42c8-be77-3bee86d5863b`
Reference flow property	Mass `93a60a56-a3c8-11da-a746-0800200b9a66`
Reference unit group	Units of mass `93a60a57-a4c8-11da-a746-0800200c9a66`
Reference unit	kg
Required qualifiers	site/year; one product state and selected gate; actual rock/solution/solar/mechanical evaporation/refining/sea-water supply route; origin/geology or marine intake coordinates and season; accepted net mass and stocks/returns; salt free moisture and dry-basis NaCl assay; solution NaCl mass fraction; sea-water salinity method and ionic composition, not salinity as pure NaCl; measured density at temperature if volume conversion; grade/particle size; each actual additive and fraction; bulk/bagged/tank/pipeline; upstream provider and allocation; transport included; pond climate and measured water/ion balance; waste fate/discharge compartment; attributable lifetime development/closure. Representative UUID is only compatible ≥99.5% NaCl Product/Mass at plant, never all salts, brine or sea water

Declare all qualifiers in dataset metadata or reference-flow comments. The representative identity is usable only for its confirmed product state, geography and property; resolve a distinct flow for incompatible variants. It does not impose a default product composition.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_basis	final_product	Mass	kg	D is the positive accepted net gate-output total in kg. Exclude packaging and cancelled internal transfers. cp_output records D; every card uses per 1 kg reference flow.
conversion	utility and material rows	Declared row property	kg; m3; MJ	Retain raw readings. Electricity: 1 kWh = 3.6 MJ. Mass/volume conversion requires measured density, temperature and applicable pressure; retain water content and active chemical fraction.
category_balance	production	Mass	kg	D is independently measured positive accepted net as-received kg of exactly the selected gate product, excluding packaging, rejects and returns; do not derive D from resource input or an assumed yield. Solid salt: dry solids = D(1-w), with measured free-water fraction0 <= w <1; dry-basis NaCl fraction x gives NaCl mass D(1-w)x, with additives separately assayed. Solution: actual NaCl mass = Dc using measured as-received NaCl mass fraction c. Sea water: D = sum of independently metered shipment V times measured matching density rho if not directly weighed; temperature/salinity and composition matched to each batch; no default rho, salinity or NaCl fraction. Total dissolved-salt salinity is not NaCl assay. Keep D as denominator in every case and disclose dry/active equivalent only as supplementary qualifiers. Reconcile water and sodium/chloride or measured ionic balances, rainfall, measured pond evaporation/seepage, each co-salt/bittern, moisture, rejects and stock changes on consistent period/basis. Cancel internal circulating brine once. One dataset never sums solid salt, solution and sea water into D.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Actual halite geological resource, marine/saline-water abstraction, or external supplied salt/brine/sea-water product carrying its upstream burdens, according to actual route
starting_condition_role	Resource or supplied feed; declare which
product_classification_scope	Salt and pure sodium chloride as declared solid grades or aqueous solutions, with actual anticaking/free-flowing agents; sea water supplied as a product, distinct from manufactured brine
recursive_input_rule	Purchased same-category material carries a distinct supplier dataset; internal recycling is a balance observation, not a new external input or credit.
upstream_dataset_requirement	Link feed, electricity, fuels, chemicals, infrastructure and waste-management burdens; disclose any missing coverage.
disclosure	site/year; one product state and selected gate; actual rock/solution/solar/mechanical evaporation/refining/sea-water supply route; origin/geology or marine intake coordinates and season; accepted net mass and stocks/returns; salt free moisture and dry-basis NaCl assay; solution NaCl mass fraction; sea-water salinity method and ionic composition, not salinity as pure NaCl; measured density at temperature if volume conversion; grade/particle size; each actual additive and fraction; bulk/bagged/tank/pipeline; upstream provider and allocation; transport included; pond climate and measured water/ion balance; waste fate/discharge compartment; attributable lifetime development/closure. Representative UUID is only compatible ≥99.5% NaCl Product/Mass at plant, never all salts, brine or sea water

rule_id	Applies to	Rule	source_ids
boundary_operations	site	Supply of salt and pure sodium chloride, including actual rock salt, harvested solar salt, vacuum/open-pan salt, refined grades, declared aqueous NaCl solutions, table or denatured salt and actual anti-caking/free-flowing variants that retain salt product identity; also supply of sea water itself at a separately declared intake/loading or receipt gate. Each dataset fixes one accepted product state, route and gate, not a weighted mixture of solid salt and sea water. Salt routes include actual mining or solution extraction, sea/saline-water intake, solar concentration/harvesting, supplied-salt dissolution or washing, brine purification, mechanical evaporation/crystallization, dewatering/drying, additive dosing and packaging only where performed. Sea-water product supply includes actual marine abstraction, pumping, screening/filtration, storage and declared delivery without forcing concentration, evaporation, crystallization or desalination. Sea water remains mixed saline water, not pure NaCl or freshwater. Externally supplied sea water/brine is a product input with upstream provider, distinct from elementary marine-water abstraction; internal brine transfers cancel. Include attributable intake/pond/mine development, lifetime rehabilitation, controls, wastes and measured releases through the gate. Chloralkali, soda ash, desalinated fresh water, food formulation and downstream salt use are separate downstream product systems. Cultured NaCl crystals for optical or other separately classified articles and medicines are outside this bulk-material supply scope.	`bgs-salt-2006`, `usgs-salt-2018`, `wco-salt-2022`
boundary_partition	all exchanges	Include actual conditioning, storage, handling and pollution controls through the declared gate. Account for attributable construction and closure with a disclosed lifetime-output basis or justified exclusion and sensitivity. Separate purchased fuel supply from foreground combustion and purchased treatment from site releases.
boundary_completeness	inventory	Cards define individual likely exchanges and route conditions, not an exhaustive site audit. Add each actual absent chemical, waste, resource, land transformation and pollutant as its own row. Absence, measured zero and unknown must be distinguished.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
development	Intake pond and mine development	conditional	Actual attributable development and rehabilitation	Foreground production	per 1 kg reference flow
extraction	Halite and solution extraction	conditional	Only actual rock mining or solution mining	Foreground production	per 1 kg reference flow
intake	Sea-water intake and supply	conditional	Actual marine intake or supplied saline feed; sea-water product may stop here	Foreground production	per 1 kg reference flow
solar	Solar salt concentration and harvesting	conditional	Only actual solar pond concentration and harvest	Foreground production	per 1 kg reference flow
refining	Salt and brine purification	conditional	Actual washing/dissolution/chemical brine purification	Foreground production	per 1 kg reference flow
evaporation	Mechanical crystallization and drying	conditional	Actual vacuum/open-pan evaporation and solid drying; absent for unprocessed sea-water gate	Foreground production	per 1 kg reference flow
controls	Saline water waste and emissions control	conditional	Actual transfers and environmental releases	Foreground production	per 1 kg reference flow
dispatch	Salt or sea-water product dispatch	required	Every selected gate; grade additives and packaging only when present	Foreground production	per 1 kg reference flow

Process: Intake pond and mine development (`development`)

Inputs

Product flows

Development and closure diesel (`development_diesel`)

Actual intake/pond/well/mine works, attributed once by lifetime output.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_development_diesel; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_development_diesel
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Process: Halite and solution extraction (`extraction`)

Inputs

Product flows

Salt extraction electricity (`mining_power`)

This purchased electricity exchange requires independently confirmed actual supplier, consumption or production interface, geography, voltage, generation attributes and energy property/unit; its UUID remains unresolved until a compatible direct-read identity is confirmed. A waste-incineration generation flow must not represent arbitrary site power.

Actual mining ventilation, crushing, pumping and wells; cancel internal brine.

Selected flow: Electricity
Flow property / unit: Net calorific value / MJ
Amount rule: Collect the attributable reporting-period quantity under cp_mining_power; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_mining_power
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Rock-salt extraction diesel (`mining_diesel`)

Actual digging/loading/onsite haul without duplicate dispatch.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_mining_diesel; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_mining_diesel
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Ammonium-nitrate fuel-oil explosive (`anfo`)

Only actual blasting; continuous mining excludes absent explosive; each other explosive separate.

Selected flow: Ammonium-nitrate fuel-oil explosive
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_anfo; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_anfo
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Purchased solution-mining water (`solution_water`)

Actual new injected water; other directly abstracted sources separate; return brine not new purchased water.

Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_solution_water; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_solution_water
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Elementary flows

Natural halite in geological deposit (`halite_resource`)

Actual halite geological withdrawal; not Product NaCl as a geological resource.

Selected flow: Natural halite in geological deposit
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_halite_resource; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_halite_resource
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Outputs

Waste flows

Rejected salt-mine rock (`rejected_rock`)

Actual removed rock with fate; no universal zero-waste assumption from one mine report.

Selected flow: Rejected salt-mine rock
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_rejected_rock; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_rejected_rock
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Process: Sea-water intake and supply (`intake`)

Inputs

Product flows

Externally supplied sea water (`supplied_seawater`)

Only actual provider sea-water product with upstream pumping/delivery; never also count its supplier intake as own marine resource.

Selected flow: Externally supplied sea water
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_supplied_seawater; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_supplied_seawater
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Externally supplied sodium-chloride brine (`supplied_brine`)

Actual manufactured/recovered brine with density/composition and provider allocation; distinct from raw sea water.

Selected flow: Externally supplied sodium-chloride brine
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_supplied_brine; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_supplied_brine
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Sea-water intake and screening electricity (`intake_power`)

Actual pump/screens/filter/storage; excludes downstream desalination.

Selected flow: Electricity
Flow property / unit: Net calorific value / MJ
Amount rule: Collect the attributable reporting-period quantity under cp_intake_power; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_intake_power
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Elementary flows

Sea water abstracted from marine environment (`marine_water`)

Actual gross marine intake with coordinates/season, distinct from supplied technosphere sea water and from freshwater resource.

Selected flow: Sea water abstracted from marine environment
Flow property / unit: Volume / m3
Amount rule: Collect the attributable reporting-period quantity under cp_marine_water; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_marine_water
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Process: Solar salt concentration and harvesting (`solar`)

Inputs

Product flows

Solar salt pond pumping electricity (`solar_power`)

Actual seawater/brine transfers within solar route; sunlight is not purchased electricity.

Selected flow: Electricity
Flow property / unit: Net calorific value / MJ
Amount rule: Collect the attributable reporting-period quantity under cp_solar_power; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_solar_power
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Solar salt harvesting diesel (`harvest_diesel`)

Only actual harvest/load machines, matched seasonal accepted stock.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_harvest_diesel; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_harvest_diesel
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Outputs

Product flows

Saleable salt-production bittern (`bittern_product`)

Only actually recovered accepted bittern specification and customer; otherwise record waste brine, not both.

Selected flow: Saleable salt-production bittern
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_bittern_product; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_bittern_product
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Process: Salt and brine purification (`refining`)

Inputs

Product flows

Supplied compatible refined sodium chloride (`supplied_nacl`)

Only ≥99.5% plant-state compatible supplied NaCl; other salt grades each independent identity; internal salt not external input.

Selected flow: Sodium chloride a413ea86-0887-42c8-be77-3bee86d5863b
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_supplied_nacl; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_supplied_nacl
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Purchased salt-refining water (`refining_water`)

Only actual new wash/dissolution/makeup water, with reused water excluded.

Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_refining_water; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_refining_water
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Salt purification electricity (`refining_power`)

Actual washing/mixing/filtration/centrifuge; no fixed chemical recipe.

Selected flow: Electricity
Flow property / unit: Net calorific value / MJ
Amount rule: Collect the attributable reporting-period quantity under cp_refining_power; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_refining_power
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Sodium carbonate (`soda_ash`)

Actual individual purification reagent only; record active fraction and reaction fate.

Selected flow: Sodium carbonate
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_soda_ash; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_soda_ash
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Sodium hydroxide (`caustic_soda`)

Actual individual purification reagent only; not downstream chloralkali production.

Selected flow: Sodium hydroxide
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_caustic_soda; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_caustic_soda
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Calcium hydroxide (`lime`)

Only actual slaked-lime purification reagent; no mandatory universal use.

Selected flow: Calcium hydroxide
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_lime; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_lime
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Outputs

Waste flows

Salt-brine purification sludge (`purification_sludge`)

Actual calcium/magnesium precipitate sludge with phase, solids and treatment fate; no assumed safe cavern disposal.

Selected flow: Salt-brine purification sludge
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_purification_sludge; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_purification_sludge
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Process: Mechanical crystallization and drying (`evaporation`)

Inputs

Product flows

Salt crystallization and dryer electricity (`evap_power`)

Only actual vacuum/MVR/pumps/centrifuge/dryer within gate; meter allocation prevents duplication.

Selected flow: Electricity
Flow property / unit: Net calorific value / MJ
Amount rule: Collect the attributable reporting-period quantity under cp_evap_power; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_evap_power
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Purchased process steam (`purchased_steam`)

Actual externally purchased evaporation/drying steam; not also onsite fuel generating same steam.

Selected flow: Purchased process steam
Flow property / unit: Net calorific value / MJ
Amount rule: Collect the attributable reporting-period quantity under cp_purchased_steam; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_purchased_steam
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Natural gas for onsite salt-process heat (`boiler_gas`)

Only actual gas-fired evaporation/drying or boiler; composition and calorific value measured; other fuels separate.

Selected flow: Natural gas for onsite salt-process heat
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_boiler_gas; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_boiler_gas
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Process: Saline water waste and emissions control (`controls`)

Inputs

Product flows

Salt water and dust-control electricity (`control_power`)

Only actual treatment/control meters not already included.

Selected flow: Electricity
Flow property / unit: Net calorific value / MJ
Amount rule: Collect the attributable reporting-period quantity under cp_control_power; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_control_power
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Outputs

Waste flows

Salt-production waste brine transferred for treatment (`waste_brine`)

Actual final brine/bittern waste transfer with composition; not environmental release or sold bittern.

Selected flow: Salt-production waste brine transferred for treatment
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_waste_brine; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_waste_brine
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Sea-water intake screen rejects (`screenings`)

Actual captured intake debris transferred with fate; organism loss and habitat impacts disclose separately.

Selected flow: Sea-water intake screen rejects
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_screenings; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_screenings
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Elementary flows

Water discharged to sea (`water_to_sea`)

Actual net marine discharge including measured salinity/temperature and origin; not freshwater return or assumed offset of gross intake.

Selected flow: Water discharged to sea
Flow property / unit: Volume / m3
Amount rule: Collect the attributable reporting-period quantity under cp_water_to_sea; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_water_to_sea
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Chloride released to sea water (`chloride_to_sea`)

Actual individual dissolved chloride load with intake/background reference and net/gross convention disclosed.

Selected flow: Chloride released to sea water
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_chloride_to_sea; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_chloride_to_sea
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Suspended solids released to sea water (`tss_water`)

Only actual measured TSS discharge to sea; captured sludge is not release.

Selected flow: Suspended solids released to sea water
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_tss_water; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_tss_water
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Fossil carbon dioxide released to air (`co2_air`)

Actual foreground fossil combustion, not a default salt chemical emission; upstream counted once.

Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_co2_air; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_co2_air
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Nitrogen dioxide released to air (`nox_air`)

Actual individual NO2 from combustion with method; NO and other pollutants each separate.

Selected flow: Nitrogen dioxide released to air
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_nox_air; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_nox_air
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Sodium chloride particulate released to air (`salt_dust`)

Actual uncollected salt dust by size/compartment; returned collector dust is not emission.

Selected flow: Sodium chloride particulate released to air
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_salt_dust; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_salt_dust
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Process: Salt or sea-water product dispatch (`dispatch`)

Inputs

Product flows

Sodium ferrocyanide anticaking agent (`sodium_ferrocyanide`)

Only actually used named additive with grade, hydrate and active fraction; no mandatory dosing.

Selected flow: Sodium ferrocyanide anticaking agent
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_sodium_ferrocyanide; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_sodium_ferrocyanide
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Silicon dioxide free-flowing agent (`silica`)

Only actually used named additive; every other denaturant/anticaking agent separate and identity reviewed.

Selected flow: Silicon dioxide free-flowing agent
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_silica; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_silica
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Polyethylene salt bag (`pe_bag`)

Only actual bag excluding product net mass; each pallet/liner/paper component separate if present.

Selected flow: Polyethylene salt bag
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_pe_bag; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_pe_bag
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Included salt or sea-water delivery diesel (`delivery_diesel`)

Only actual foreground delivery inside expressly selected receipt gate; no duplicated provider transport.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_delivery_diesel; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_delivery_diesel
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Outputs

Product flows

Rock salt at declared gate (`rock_salt_product`)

Selected rock-salt product only; measure its own D and grade/moisture; co-grades separately allocated; not pure NaCl UUID.

Selected flow: Rock salt at declared gate
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_rock_salt_product; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_rock_salt_product
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Harvested solar salt at declared gate (`solar_salt_product`)

Selected solar-salt product only with own D, moisture and assays; no imposed refined purity.

Selected flow: Harvested solar salt at declared gate
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_solar_salt_product; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_solar_salt_product
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Sodium chloride aqueous solution at declared gate (`solution_product`)

Selected manufactured NaCl solution only with own positive as-received D and concentration; not dry NaCl kg or raw sea water.

Selected flow: Sodium chloride aqueous solution at declared gate
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_solution_product; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_solution_product
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Sea water at declared supply gate (`seawater_product`)

Selected raw/physically screened sea-water product only with own D and salinity/density; exclude all absent evaporation/refining salt operations.

Selected flow: Sea water at declared supply gate
Flow property / unit: Mass / kg
Amount rule: Collect the attributable reporting-period quantity under cp_seawater_product; divide by D after stock, transfer and allocation reconciliation.
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_seawater_product
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

Compatible refined sodium chloride at plant (`final_product`)

Representative confirmed ≥99.5% NaCl Product/Mass only when this compatible plant product is selected. Other salt grades, NaCl solution and sea-water outputs require their own identities and replace the dataset reference, not this UUID. Actual mechanical/solar production is recorded, not inferred from flow name. Exactly one selected accepted product defines D; alternative reference cards are not joint quantities summed into D.

Selected flow: Sodium chloride a413ea86-0887-42c8-be77-3bee86d5863b
Flow property / unit: Mass / kg
Amount rule: 1 kg
Value mode: foreground_record
Specificity: site_specific
Normalization basis: per 1 kg reference flow
Basis kind: reference_flow
Evidence kind: collected_record
Collection protocol: cp_output
Sources: bgs-salt-2006, usgs-salt-2018, wco-salt-2022

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_hierarchy	joint production	Prefer process subdivision or defensible system expansion; otherwise use demonstrated physical causality. Use economic allocation only with consistent period, price, currency and sensitivity when physical causality is unavailable. Retain the unallocated inventory.	`ef-allocation-2021`
allocation_product	reference and co-products	Subdivide mine/intake, purification, evaporation and independently handled grades wherever possible. Retain unallocated inventories for actual joint NaCl, bittern and separately recovered calcium/magnesium/potassium salts; demonstrate physical causality or use matched economic allocation with price sensitivity when needed. Bittern or purification sludge is not automatically a saleable co-product; document composition, specification and actual fate. Account for recovered/purchased-brine supplier burdens and any justified cut-off, not zero burdens by origin. Allocate attributable intake/pond/well/mine development and closure once over measured lifetime accepted output; storage-cavern downstream use gives no automatic credit. No default avoided salt, chemical, desalinated-water or disposal credits.
allocation_waste	waste and recycling	Classify each output by physical state and actual fate. A sale does not automatically make a residue a co-product; internal recycling receives no avoided-product credit. Apply treatment burdens once.

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_development_diesel	development	`development_diesel`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_halite_resource	extraction	`halite_resource`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_mining_power	extraction	`mining_power`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_mining_diesel	extraction	`mining_diesel`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_anfo	extraction	`anfo`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_solution_water	extraction	`solution_water`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_rejected_rock	extraction	`rejected_rock`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_marine_water	intake	`marine_water`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently meter gross intake and accepted gate shipments separately; match calibrated net kg or measured V m3 and density rho kg/m3 at recorded temperature and salinity for each batch. Record origin, seasonal samples, Na/Cl and other ionic assays, stocks, transfers, rainfall, evaporation, leakage and actual discharge. D derives only from selected accepted gate output; D=sum(V*rho) if volume-derived, without assumed seawater density or salinity. Solution NaCl fraction and seawater total salinity remain distinct.	m3	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_supplied_seawater	intake	`supplied_seawater`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently meter gross intake and accepted gate shipments separately; match calibrated net kg or measured V m3 and density rho kg/m3 at recorded temperature and salinity for each batch. Record origin, seasonal samples, Na/Cl and other ionic assays, stocks, transfers, rainfall, evaporation, leakage and actual discharge. D derives only from selected accepted gate output; D=sum(V*rho) if volume-derived, without assumed seawater density or salinity. Solution NaCl fraction and seawater total salinity remain distinct.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_supplied_brine	intake	`supplied_brine`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently meter gross intake and accepted gate shipments separately; match calibrated net kg or measured V m3 and density rho kg/m3 at recorded temperature and salinity for each batch. Record origin, seasonal samples, Na/Cl and other ionic assays, stocks, transfers, rainfall, evaporation, leakage and actual discharge. D derives only from selected accepted gate output; D=sum(V*rho) if volume-derived, without assumed seawater density or salinity. Solution NaCl fraction and seawater total salinity remain distinct.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_intake_power	intake	`intake_power`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_solar_power	solar	`solar_power`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_harvest_diesel	solar	`harvest_diesel`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_bittern_product	solar	`bittern_product`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently weigh net accepted product or actual transfer kg for matched batch/period; assay free moisture, solids, NaCl and actual other phases/ions/additives on explicit wet/dry basis. Reconcile stocks and flows; reject/packaging not D. Selected product D is independently measured and positive, never theoretical yield. Retain dry-solids D(1-w), NaCl D(1-w)x or solution Dc as supplementary equivalents only.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_supplied_nacl	refining	`supplied_nacl`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently weigh net accepted product or actual transfer kg for matched batch/period; assay free moisture, solids, NaCl and actual other phases/ions/additives on explicit wet/dry basis. Reconcile stocks and flows; reject/packaging not D. Selected product D is independently measured and positive, never theoretical yield. Retain dry-solids D(1-w), NaCl D(1-w)x or solution Dc as supplementary equivalents only.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_refining_water	refining	`refining_water`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_refining_power	refining	`refining_power`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_soda_ash	refining	`soda_ash`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Record individually named supplier formulation and hydrate, net consumed formulation kg, active fraction, added water and actual process fate, same period as output; no pooled chemicals or imposed dose.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_caustic_soda	refining	`caustic_soda`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Record individually named supplier formulation and hydrate, net consumed formulation kg, active fraction, added water and actual process fate, same period as output; no pooled chemicals or imposed dose.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_lime	refining	`lime`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Record individually named supplier formulation and hydrate, net consumed formulation kg, active fraction, added water and actual process fate, same period as output; no pooled chemicals or imposed dose.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_purification_sludge	refining	`purification_sludge`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently weigh net accepted product or actual transfer kg for matched batch/period; assay free moisture, solids, NaCl and actual other phases/ions/additives on explicit wet/dry basis. Reconcile stocks and flows; reject/packaging not D. Selected product D is independently measured and positive, never theoretical yield. Retain dry-solids D(1-w), NaCl D(1-w)x or solution Dc as supplementary equivalents only.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_evap_power	evaporation	`evap_power`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_purchased_steam	evaporation	`purchased_steam`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_boiler_gas	evaporation	`boiler_gas`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_waste_brine	controls	`waste_brine`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently weigh net accepted product or actual transfer kg for matched batch/period; assay free moisture, solids, NaCl and actual other phases/ions/additives on explicit wet/dry basis. Reconcile stocks and flows; reject/packaging not D. Selected product D is independently measured and positive, never theoretical yield. Retain dry-solids D(1-w), NaCl D(1-w)x or solution Dc as supplementary equivalents only.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_screenings	controls	`screenings`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_control_power	controls	`control_power`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_water_to_sea	controls	`water_to_sea`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently meter gross intake and accepted gate shipments separately; match calibrated net kg or measured V m3 and density rho kg/m3 at recorded temperature and salinity for each batch. Record origin, seasonal samples, Na/Cl and other ionic assays, stocks, transfers, rainfall, evaporation, leakage and actual discharge. D derives only from selected accepted gate output; D=sum(V*rho) if volume-derived, without assumed seawater density or salinity. Solution NaCl fraction and seawater total salinity remain distinct.	m3	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_chloride_to_sea	controls	`chloride_to_sea`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Measured matched discharge volume V m3 and species concentration C mg/L give load kg=C*V/1000; preserve intake/background paired concentration, gross/net convention, environmental compartment and uncertainty. Net incremental load only when matched gross intake/background subtraction is justified and declared; do not automatically count natural sea-water chloride as newly generated pollution.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_tss_water	controls	`tss_water`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Measured matched discharge volume V m3 and species concentration C mg/L give load kg=C*V/1000; preserve intake/background paired concentration, gross/net convention, environmental compartment and uncertainty. Net incremental load only when matched gross intake/background subtraction is justified and declared; do not automatically count natural sea-water chloride as newly generated pollution.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_co2_air	controls	`co2_air`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_nox_air	controls	`nox_air`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_salt_dust	controls	`salt_dust`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_sodium_ferrocyanide	dispatch	`sodium_ferrocyanide`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Record individually named supplier formulation and hydrate, net consumed formulation kg, active fraction, added water and actual process fate, same period as output; no pooled chemicals or imposed dose.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_silica	dispatch	`silica`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Record individually named supplier formulation and hydrate, net consumed formulation kg, active fraction, added water and actual process fate, same period as output; no pooled chemicals or imposed dose.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_pe_bag	dispatch	`pe_bag`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_delivery_diesel	dispatch	`delivery_diesel`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_rock_salt_product	dispatch	`rock_salt_product`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently weigh net accepted product or actual transfer kg for matched batch/period; assay free moisture, solids, NaCl and actual other phases/ions/additives on explicit wet/dry basis. Reconcile stocks and flows; reject/packaging not D. Selected product D is independently measured and positive, never theoretical yield. Retain dry-solids D(1-w), NaCl D(1-w)x or solution Dc as supplementary equivalents only.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_solar_salt_product	dispatch	`solar_salt_product`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently weigh net accepted product or actual transfer kg for matched batch/period; assay free moisture, solids, NaCl and actual other phases/ions/additives on explicit wet/dry basis. Reconcile stocks and flows; reject/packaging not D. Selected product D is independently measured and positive, never theoretical yield. Retain dry-solids D(1-w), NaCl D(1-w)x or solution Dc as supplementary equivalents only.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_solution_product	dispatch	`solution_product`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently meter gross intake and accepted gate shipments separately; match calibrated net kg or measured V m3 and density rho kg/m3 at recorded temperature and salinity for each batch. Record origin, seasonal samples, Na/Cl and other ionic assays, stocks, transfers, rainfall, evaporation, leakage and actual discharge. D derives only from selected accepted gate output; D=sum(V*rho) if volume-derived, without assumed seawater density or salinity. Solution NaCl fraction and seawater total salinity remain distinct.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_seawater_product	dispatch	`seawater_product`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently meter gross intake and accepted gate shipments separately; match calibrated net kg or measured V m3 and density rho kg/m3 at recorded temperature and salinity for each batch. Record origin, seasonal samples, Na/Cl and other ionic assays, stocks, transfers, rainfall, evaporation, leakage and actual discharge. D derives only from selected accepted gate output; D=sum(V*rho) if volume-derived, without assumed seawater density or salinity. Solution NaCl fraction and seawater total salinity remain distinct.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_output	dispatch	`final_product`	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently weigh net accepted product or actual transfer kg for matched batch/period; assay free moisture, solids, NaCl and actual other phases/ions/additives on explicit wet/dry basis. Reconcile stocks and flows; reject/packaging not D. Selected product D is independently measured and positive, never theoretical yield. Retain dry-solids D(1-w), NaCl D(1-w)x or solution Dc as supplementary equivalents only.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One accepted solid salt grade, NaCl aqueous solution or sea-water product; measured as-received composition and selected loading/receipt gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
normalization	all cards	Exchange = attributable period quantity / D. Reconcile inventories and cancel internal transfers before aggregation.	cp_output; row-specific cp records	per 1 kg reference flow
physical_balance	production	D is independently measured positive accepted net as-received kg of exactly the selected gate product, excluding packaging, rejects and returns; do not derive D from resource input or an assumed yield. Solid salt: dry solids = D(1-w), with measured free-water fraction0 <= w <1; dry-basis NaCl fraction x gives NaCl mass D(1-w)x, with additives separately assayed. Solution: actual NaCl mass = Dc using measured as-received NaCl mass fraction c. Sea water: D = sum of independently metered shipment V times measured matching density rho if not directly weighed; temperature/salinity and composition matched to each batch; no default rho, salinity or NaCl fraction. Total dissolved-salt salinity is not NaCl assay. Keep D as denominator in every case and disclose dry/active equivalent only as supplementary qualifiers. Reconcile water and sodium/chloride or measured ionic balances, rainfall, measured pond evaporation/seepage, each co-salt/bittern, moisture, rejects and stock changes on consistent period/basis. Cancel internal circulating brine once. One dataset never sums solid salt, solution and sea water into D.	Matched mass, volume, composition and stock measurements	Balance residual and uncertainty

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
representativeness	dataset	Use matching production and exchange periods, actual technology, geography and supplier state. Record startup, shutdown, seasonal variation and substitutions.	collection records
identity_and_ranges	all cards	Unresolved identities and missing independent range evidence remain explicit. Do not replace measurement by a guessed industry range or by missing-as-zero.	manifest review metadata

9. Validation Rules

rule_id	Applies to	Rule
validate_reference	final_product	Verify 1 kg, positive D, product state, property/unit and every required qualifier. Each dataset fixes one product and route.
validate_balance	site	D is independently measured positive accepted net as-received kg of exactly the selected gate product, excluding packaging, rejects and returns; do not derive D from resource input or an assumed yield. Solid salt: dry solids = D(1-w), with measured free-water fraction0 <= w <1; dry-basis NaCl fraction x gives NaCl mass D(1-w)x, with additives separately assayed. Solution: actual NaCl mass = Dc using measured as-received NaCl mass fraction c. Sea water: D = sum of independently metered shipment V times measured matching density rho if not directly weighed; temperature/salinity and composition matched to each batch; no default rho, salinity or NaCl fraction. Total dissolved-salt salinity is not NaCl assay. Keep D as denominator in every case and disclose dry/active equivalent only as supplementary qualifiers. Reconcile water and sodium/chloride or measured ionic balances, rainfall, measured pond evaporation/seepage, each co-salt/bittern, moisture, rejects and stock changes on consistent period/basis. Cancel internal circulating brine once. One dataset never sums solid salt, solution and sea water into D.
validate_coverage	handoff	Verify each applicable exchange, its provider or environmental compartment and final waste fate; identify skipped checks, unresolved identities, missing measurements and upstream gaps. Errors or unassessed mandatory coverage cannot be labelled complete.

10. Published Dataset Profile

Field	Value
dataset_role	foreground_dataset
downstream_use	secondary_dataset; background_dataset
allowed_use	Supply1 kg net accepted as-received product in one declared salt, NaCl solution or sea-water state; solution/sea-water kg is not dry salt kg
excluded_use	Chlorine, caustic soda, soda ash and other chemical transformations; desalinated freshwater; other isolated mineral salts as the reference product; formulated foods or medicines, cultured/optical NaCl articles, downstream uses and transport-only services
required_metadata	site/year; one product state and selected gate; actual rock/solution/solar/mechanical evaporation/refining/sea-water supply route; origin/geology or marine intake coordinates and season; accepted net mass and stocks/returns; salt free moisture and dry-basis NaCl assay; solution NaCl mass fraction; sea-water salinity method and ionic composition, not salinity as pure NaCl; measured density at temperature if volume conversion; grade/particle size; each actual additive and fraction; bulk/bagged/tank/pipeline; upstream provider and allocation; transport included; pond climate and measured water/ion balance; waste fate/discharge compartment; attributable lifetime development/closure. Representative UUID is only compatible ≥99.5% NaCl Product/Mass at plant, never all salts, brine or sea water
required_quality_disclosure	Identity and measurement gaps; boundary coverage; uncertainty; allocation; temporal and geographical representativeness
update_trigger	Changed product, route, yield, supply, waste fate, site or representative period

11. Data Sources

Source id	Type	Reference	Used for
bgs-salt-2006	official_guidance	BGS, Highley, Bloodworth and Bate, Mineral Planning Factsheet: Salt, January 2006, original pp.6–7. https://nora.nerc.ac.uk/id/eprint/534431/1/mpf_salt.pdf	Qualitative rock/solution extraction, brine purification and plant transport states; historical UK assays, yields, reserve recovery, waste totals and zero-waste claims are not general defaults.
usgs-salt-2018	official_guidance	USGS, Wallace P. Bolen, 2018 Minerals Yearbook: Salt, June2023 advance release, original PDF p.2 / printed63.1. https://pubs.usgs.gov/myb/vol1/2018/myb1-2018-salt.pdf	Actual rock, solution-brine, solar and vacuum/open-pan routes and solar climate/season geography; USGS anhydrous brine statistics are not as-received solution mass. No historical capacities or intensities adopted.
wco-salt-2022	official_guidance	WCO HS Nomenclature2022 Chapter25, original PDF p.1 heading2501 and Notes1–2. https://www.wcoomd.org/-/media/wco/public/global/pdf/topics/nomenclature/instruments-and-tools/hs-nomenclature-2022/2022/0525_2022e.pdf?la=en	Salt, pure NaCl, aqueous solutions, anticaking/free-flowing variants and sea water product-state scope; no new HS mapping or production quantity.
cpc3-notes-2025	official_guidance	UNSD, CPC Version 3.0 Explanatory Notes, 30 June 2025. https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf	Classification scope only; no process quantities.
ef-allocation-2021	official_guidance	Commission Recommendation (EU) 2021/2279, Annex I section 4.5, consolidated 30 December 2021. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02021H2279-20211230	Multifunctionality hierarchy; not a claim of complete PEF conformity.

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Structured rule index

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System boundary rules · 3

Rule ID	Applies to	Rule	Source IDs
`boundary_operations`	site	Supply of salt and pure sodium chloride, including actual rock salt, harvested solar salt, vacuum/open-pan salt, refined grades, declared aqueous NaCl solutions, table or denatured salt and actual anti-caking/free-flowing variants that retain salt product identity; also supply of sea water itself at a separately declared intake/loading or receipt gate. Each dataset fixes one accepted product state, route and gate, not a weighted mixture of solid salt and sea water. Salt routes include actual mining or solution extraction, sea/saline-water intake, solar concentration/harvesting, supplied-salt dissolution or washing, brine purification, mechanical evaporation/crystallization, dewatering/drying, additive dosing and packaging only where performed. Sea-water product supply includes actual marine abstraction, pumping, screening/filtration, storage and declared delivery without forcing concentration, evaporation, crystallization or desalination. Sea water remains mixed saline water, not pure NaCl or freshwater. Externally supplied sea water/brine is a product input with upstream provider, distinct from elementary marine-water abstraction; internal brine transfers cancel. Include attributable intake/pond/mine development, lifetime rehabilitation, controls, wastes and measured releases through the gate. Chloralkali, soda ash, desalinated fresh water, food formulation and downstream salt use are separate downstream product systems. Cultured NaCl crystals for optical or other separately classified articles and medicines are outside this bulk-material supply scope.	bgs-salt-2006, usgs-salt-2018, wco-salt-2022
`boundary_partition`	all exchanges	Include actual conditioning, storage, handling and pollution controls through the declared gate. Account for attributable construction and closure with a disclosed lifetime-output basis or justified exclusion and sensitivity. Separate purchased fuel supply from foreground combustion and purchased treatment from site releases.
`boundary_completeness`	inventory	Cards define individual likely exchanges and route conditions, not an exhaustive site audit. Add each actual absent chemical, waste, resource, land transformation and pollutant as its own row. Absence, measured zero and unknown must be distinguished.

Allocation rules · 3

Rule ID	Applies to	Rule	Source IDs
`allocation_hierarchy`	joint production	Prefer process subdivision or defensible system expansion; otherwise use demonstrated physical causality. Use economic allocation only with consistent period, price, currency and sensitivity when physical causality is unavailable. Retain the unallocated inventory.	ef-allocation-2021
`allocation_product`	reference and co-products	Subdivide mine/intake, purification, evaporation and independently handled grades wherever possible. Retain unallocated inventories for actual joint NaCl, bittern and separately recovered calcium/magnesium/potassium salts; demonstrate physical causality or use matched economic allocation with price sensitivity when needed. Bittern or purification sludge is not automatically a saleable co-product; document composition, specification and actual fate. Account for recovered/purchased-brine supplier burdens and any justified cut-off, not zero burdens by origin. Allocate attributable intake/pond/well/mine development and closure once over measured lifetime accepted output; storage-cavern downstream use gives no automatic credit. No default avoided salt, chemical, desalinated-water or disposal credits.
`allocation_waste`	waste and recycling	Classify each output by physical state and actual fate. A sale does not automatically make a residue a co-product; internal recycling receives no avoided-product credit. Apply treatment burdens once.

Validation rules · 3

Rule ID	Applies to	Rule
`validate_reference`	final_product	Verify 1 kg, positive D, product state, property/unit and every required qualifier. Each dataset fixes one product and route.
`validate_balance`	site	D is independently measured positive accepted net as-received kg of exactly the selected gate product, excluding packaging, rejects and returns; do not derive D from resource input or an assumed yield. Solid salt: dry solids = D(1-w), with measured free-water fraction0 <= w <1; dry-basis NaCl fraction x gives NaCl mass D(1-w)x, with additives separately assayed. Solution: actual NaCl mass = Dc using measured as-received NaCl mass fraction c. Sea water: D = sum of independently metered shipment V times measured matching density rho if not directly weighed; temperature/salinity and composition matched to each batch; no default rho, salinity or NaCl fraction. Total dissolved-salt salinity is not NaCl assay. Keep D as denominator in every case and disclose dry/active equivalent only as supplementary qualifiers. Reconcile water and sodium/chloride or measured ionic balances, rainfall, measured pond evaporation/seepage, each co-salt/bittern, moisture, rejects and stock changes on consistent period/basis. Cancel internal circulating brine once. One dataset never sums solid salt, solution and sea water into D.
`validate_coverage`	handoff	Verify each applicable exchange, its provider or environmental compartment and final waste fate; identify skipped checks, unresolved identities, missing measurements and upstream gaps. Errors or unassessed mandatory coverage cannot be labelled complete.

Processes and inputs/outputs · 8

Process ID	Process name	Input flows	Output flows
`development`	Intake pond and mine development	1	0
`extraction`	Halite and solution extraction	5	1
`intake`	Sea-water intake and supply	4	0
`solar`	Solar salt concentration and harvesting	2	1
`refining`	Salt and brine purification	6	1
`evaporation`	Mechanical crystallization and drying	3	0
`controls`	Saline water waste and emissions control	1	8
`dispatch`	Salt or sea-water product dispatch	4	5

Complete field inspector

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Salt and pure sodium chloride; sea water

Content languages

Readiness

Classification mapping

Source

1. Scope and Applicability

2. Product Category Identity

3. Reference Flow

4. Measurement and Unit Rules

5. System Boundary

Boundary Abstraction

6. Process Inventory Structure

Process Map

Process: Intake pond and mine development (development)

Inputs

Product flows

Development and closure diesel (development_diesel)

Process: Halite and solution extraction (extraction)

Inputs

Product flows

Salt extraction electricity (mining_power)

Rock-salt extraction diesel (mining_diesel)

Ammonium-nitrate fuel-oil explosive (anfo)

Purchased solution-mining water (solution_water)

Elementary flows

Natural halite in geological deposit (halite_resource)

Outputs

Waste flows

Rejected salt-mine rock (rejected_rock)

Process: Sea-water intake and supply (intake)

Inputs

Product flows

Externally supplied sea water (supplied_seawater)

Externally supplied sodium-chloride brine (supplied_brine)

Sea-water intake and screening electricity (intake_power)

Elementary flows

Sea water abstracted from marine environment (marine_water)

Process: Solar salt concentration and harvesting (solar)

Inputs

Product flows

Solar salt pond pumping electricity (solar_power)

Solar salt harvesting diesel (harvest_diesel)

Outputs

Product flows

Saleable salt-production bittern (bittern_product)

Process: Salt and brine purification (refining)

Inputs

Product flows

Supplied compatible refined sodium chloride (supplied_nacl)

Purchased salt-refining water (refining_water)

Salt purification electricity (refining_power)

Sodium carbonate (soda_ash)

Sodium hydroxide (caustic_soda)

Calcium hydroxide (lime)

Outputs

Waste flows

Salt-brine purification sludge (purification_sludge)

Process: Mechanical crystallization and drying (evaporation)

Inputs

Product flows

Salt crystallization and dryer electricity (evap_power)

Purchased process steam (purchased_steam)

Natural gas for onsite salt-process heat (boiler_gas)

Process: Saline water waste and emissions control (controls)

Inputs

Product flows

Salt water and dust-control electricity (control_power)

Outputs

Waste flows

Salt-production waste brine transferred for treatment (waste_brine)

Sea-water intake screen rejects (screenings)

Elementary flows

Water discharged to sea (water_to_sea)

Chloride released to sea water (chloride_to_sea)

Suspended solids released to sea water (tss_water)

Fossil carbon dioxide released to air (co2_air)

Nitrogen dioxide released to air (nox_air)

Sodium chloride particulate released to air (salt_dust)

Process: Salt or sea-water product dispatch (dispatch)

Inputs

Process: Intake pond and mine development (`development`)

Development and closure diesel (`development_diesel`)

Process: Halite and solution extraction (`extraction`)

Salt extraction electricity (`mining_power`)

Rock-salt extraction diesel (`mining_diesel`)

Ammonium-nitrate fuel-oil explosive (`anfo`)

Purchased solution-mining water (`solution_water`)

Natural halite in geological deposit (`halite_resource`)

Rejected salt-mine rock (`rejected_rock`)

Process: Sea-water intake and supply (`intake`)

Externally supplied sea water (`supplied_seawater`)

Externally supplied sodium-chloride brine (`supplied_brine`)

Sea-water intake and screening electricity (`intake_power`)

Sea water abstracted from marine environment (`marine_water`)

Process: Solar salt concentration and harvesting (`solar`)

Solar salt pond pumping electricity (`solar_power`)

Solar salt harvesting diesel (`harvest_diesel`)

Saleable salt-production bittern (`bittern_product`)

Process: Salt and brine purification (`refining`)

Supplied compatible refined sodium chloride (`supplied_nacl`)

Purchased salt-refining water (`refining_water`)

Salt purification electricity (`refining_power`)

Sodium carbonate (`soda_ash`)

Sodium hydroxide (`caustic_soda`)

Calcium hydroxide (`lime`)

Salt-brine purification sludge (`purification_sludge`)

Process: Mechanical crystallization and drying (`evaporation`)

Salt crystallization and dryer electricity (`evap_power`)

Purchased process steam (`purchased_steam`)

Natural gas for onsite salt-process heat (`boiler_gas`)

Process: Saline water waste and emissions control (`controls`)

Salt water and dust-control electricity (`control_power`)

Salt-production waste brine transferred for treatment (`waste_brine`)

Sea-water intake screen rejects (`screenings`)

Water discharged to sea (`water_to_sea`)

Chloride released to sea water (`chloride_to_sea`)

Suspended solids released to sea water (`tss_water`)

Fossil carbon dioxide released to air (`co2_air`)

Nitrogen dioxide released to air (`nox_air`)

Sodium chloride particulate released to air (`salt_dust`)

Process: Salt or sea-water product dispatch (`dispatch`)

Sodium ferrocyanide anticaking agent (`sodium_ferrocyanide`)

Silicon dioxide free-flowing agent (`silica`)

Polyethylene salt bag (`pe_bag`)

Included salt or sea-water delivery diesel (`delivery_diesel`)

Rock salt at declared gate (`rock_salt_product`)

Harvested solar salt at declared gate (`solar_salt_product`)

Sodium chloride aqueous solution at declared gate (`solution_product`)

Sea water at declared supply gate (`seawater_product`)

Compatible refined sodium chloride at plant (`final_product`)