TianGong PCR

Ice and snow

Lifecycle status
Candidate
Content maturity
Authored methodology
Current version
No published versionLast updated
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 3.0:17400 · exact

Source

1. Scope and Applicability

This PCR covers production-gate supply of frozen water: manufactured block, flake or tube ice, artificial snow, or separately declared natural ice/snow harvesting. Fix one route, shape, temperature and retained liquid-water fraction. Include actual feed-water conditioning, freezing, harvest, separation, storage and loading. Natural harvesting does not inherit manufactured-freezing electricity. Cooling capacity and service duration are outside the mass reference. fao-ice-2004

2. Product Category Identity

FieldValue
canonical_pcr_idpcr.ores-and-minerals-electricity-gas-and-water.electricity-town-gas-steam-and-hot-water.ice-and-snow
classification_refsCPC 3.0:17400
covered_productsNatural ice and snow and artificially frozen water, supplied for non-edible use
excluded_productsEdible ice; carbon-dioxide dry ice; refrigeration equipment; downstream cooling service
representative_productFrozen water for non-edible use
production_routeFeed-water conditioning; Freezing and product separation; Natural ice/snow harvesting; Cold storage and gate handling
market_stateFrozen water at a declared harvest or ice-plant loading gate

3. Reference Flow

FieldValue
WhatSupply a declared solid-water material; no equivalent cooling-service claim
How much1 kg
How wellsite and year; natural/manufactured route; fresh/saline origin; shape; solid and entrained liquid fractions; temperature; intended non-edible use; water quality; refrigerant species; storage duration; gate; allocation
How long or cycleOne gate supply within a declared production period
reference_flow_linkfinal_product
FieldValue
Reference amount1
Reference product flowFrozen water for non-edible use
Reference flow propertyMass 93a60a56-a3c8-11da-a746-0800200b9a66
Reference unit groupUnits of mass 93a60a57-a4c8-11da-a746-0800200c9a66
Reference unitkg
Required qualifierssite and year; natural/manufactured route; fresh/saline origin; shape; solid and entrained liquid fractions; temperature; intended non-edible use; water quality; refrigerant species; storage duration; gate; allocation

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_idApplies toRequired propertyRequired unitRule
reference_basisfinal_productMasskgD 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.
conversionutility and material rowsDeclared row propertykg; m3; MJRetain 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_balanceproductionMasskgReconcile feed water, ice solids, entrained liquid, drained/melted water, evaporation and stock changes. Meter electricity for freezing, defrosting and storage separately. Declare solid fraction and measured temperatures; never infer cooling capacity from equal bulk volume. Refrigerant loss equals reconciled charge, purchases, recovery and closing stock with leak records; a closed brine bath is not a fresh product feed each cycle.

5. System Boundary

Boundary Abstraction

FieldValue
declared_starting_conditionPurchased suitable liquid water for manufacture, or natural ice/snow at its identified harvesting location
starting_condition_roleResource or supplied feed; declare which
product_classification_scopeNatural ice and snow and artificially frozen water, supplied for non-edible use
recursive_input_rulePurchased same-category material carries a distinct supplier dataset; internal recycling is a balance observation, not a new external input or credit.
upstream_dataset_requirementLink feed, electricity, fuels, chemicals, infrastructure and waste-management burdens; disclose any missing coverage.
disclosuresite and year; natural/manufactured route; fresh/saline origin; shape; solid and entrained liquid fractions; temperature; intended non-edible use; water quality; refrigerant species; storage duration; gate; allocation
rule_idApplies toRulesource_ids
boundary_operationssiteThis PCR covers production-gate supply of frozen water: manufactured block, flake or tube ice, artificial snow, or separately declared natural ice/snow harvesting. Fix one route, shape, temperature and retained liquid-water fraction. Include actual feed-water conditioning, freezing, harvest, separation, storage and loading. Natural harvesting does not inherit manufactured-freezing electricity. Cooling capacity and service duration are outside the mass reference.fao-ice-2004
boundary_partitionall exchangesInclude 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_completenessinventoryCards 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_idprocess_nameinclusioninclusion_conditionrolequantitative_reference
water_prepFeed-water conditioningconditionalManufactured route with purchased waterForeground productionper 1 kg reference flow
freezingFreezing and product separationconditionalArtificial freezing or snow manufactureForeground productionper 1 kg reference flow
harvestNatural ice/snow harvestingconditionalNatural harvesting route onlyForeground productionper 1 kg reference flow
storageCold storage and gate handlingrequiredAll routes; active cooling only where actually operatedForeground productionper 1 kg reference flow

Process: Feed-water conditioning (water_prep)

Inputs

Product flows
Tap-water feed (feed_water)

Purchased tap water; food-contact suitability must be demonstrated when needed. Internal recovered meltwater is a balance observation.

  • Selected flow: Tap water d1e0e36c-07f0-4a75-bdcb-efb5d9e2ac36
  • Flow property / unit: Mass / kg
  • Amount rule: Collect the attributable reporting-period quantity under cp_feed_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_feed_water
  • Sources: fao-ice-2004

Outputs

Waste flows
Water-filtration sludge (filter_sludge)

Only when water conditioning generates transferred sludge; characterize solids and treatment fate.

  • Selected flow: Water-filtration sludge
  • Flow property / unit: Mass / kg
  • Amount rule: Collect the attributable reporting-period quantity under cp_filter_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_filter_sludge
  • Sources: fao-ice-2004

Process: Freezing and product separation (freezing)

Inputs

Product flows
Freezing electricity (freezing_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.

Include compressor, pump, fan, snowmaking and defrost loads on one reconciled ledger; distinguish the actual route.

  • Selected flow: Electricity
  • Flow property / unit: Net calorific value / MJ
  • Amount rule: Collect the attributable reporting-period quantity under cp_freezing_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_freezing_power
  • Sources: fao-ice-2004
Sodium-chloride bath make-up (brine_salt)

Only for a sodium-chloride secondary bath; record fresh make-up, not circulating bath mass.

  • Selected flow: Sodium chloride a413ea86-0887-42c8-be77-3bee86d5863b
  • Flow property / unit: Mass / kg
  • Amount rule: Collect the attributable reporting-period quantity under cp_brine_salt; 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_brine_salt
  • Sources: fao-ice-2004
Refrigeration ammonia make-up (ammonia_charge)

Only when ammonia is the actual refrigerant; other refrigerants need their own specific cards.

  • Selected flow: Refrigeration ammonia make-up
  • Flow property / unit: Mass / kg
  • Amount rule: Collect the attributable reporting-period quantity under cp_ammonia_charge; 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_ammonia_charge
  • Sources: fao-ice-2004

Outputs

Waste flows
Spent sodium-chloride refrigeration brine (spent_brine)

Only discharged bath liquid transferred for treatment; concentration and contaminants required.

  • Selected flow: Spent sodium-chloride refrigeration brine
  • Flow property / unit: Mass / kg
  • Amount rule: Collect the attributable reporting-period quantity under cp_spent_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_spent_brine
  • Sources: fao-ice-2004
Elementary flows
Ammonia to outdoor air (ammonia_air)

Only direct measured/modelled ammonia leaks reaching outdoor air; recovered ammonia is not an emission.

  • Selected flow: Ammonia to outdoor air
  • Flow property / unit: Mass / kg
  • Amount rule: Collect the attributable reporting-period quantity under cp_ammonia_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_ammonia_air
  • Sources: fao-ice-2004

Process: Natural ice/snow harvesting (harvest)

Inputs

Product flows
Harvest-equipment diesel (harvest_diesel)

Only diesel-driven cutting, collecting and internal haulage in natural harvesting.

  • 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: fao-ice-2004
Elementary flows
Natural frozen water withdrawn (natural_ice_resource)

Record removed natural ice/snow mass and location; distinguish resource withdrawal from purchased ice.

  • Selected flow: Natural frozen water withdrawn
  • Flow property / unit: Mass / kg
  • Amount rule: Collect the attributable reporting-period quantity under cp_natural_ice_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_natural_ice_resource
  • Sources: fao-ice-2004

Outputs

Elementary flows
Fossil combustion carbon dioxide (harvest_co2)

Only foreground diesel combustion; keep supplier diesel production emissions upstream.

  • 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_harvest_co2; 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_co2
  • Sources: fao-ice-2004

Process: Cold storage and gate handling (storage)

Inputs

Product flows
Storage electricity (storage_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.

Only active cold-storage operation, handling and gate equipment; measure melt losses and storage duration.

  • Selected flow: Electricity
  • Flow property / unit: Net calorific value / MJ
  • Amount rule: Collect the attributable reporting-period quantity under cp_storage_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_storage_power
  • Sources: fao-ice-2004

Outputs

Product flows
Frozen water for non-edible use (final_product)

One declared ice/snow product and route; exclude packaging and separately drained water from accepted net mass.

  • Selected flow: Frozen water for non-edible use
  • 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: fao-ice-2004
Waste flows
Meltwater transferred for treatment (meltwater)

Only unsuitable meltwater sent to treatment; usable internally recovered water is not a waste output.

  • Selected flow: Meltwater transferred for treatment
  • Flow property / unit: Mass / kg
  • Amount rule: Collect the attributable reporting-period quantity under cp_meltwater; 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_meltwater
  • Sources: fao-ice-2004

7. Allocation and Co-product Handling

rule_idApplies toRulesource_ids
allocation_hierarchyjoint productionPrefer 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_productreference and co-productsSeparate product grades and natural versus manufactured routes before assigning shared refrigeration and storage meters by measured use. Allocate unavoidable shared overhead on a justified physical basis; do not credit discharged cold water or internal melt-water recycling.
allocation_wastewaste and recyclingClassify 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_idprocess_idflow_rolerecord_typeraw_fieldscollection_methodunitfrequencytemporal_coveragesite_scopeaggregation_rulequality_evidence
cp_feed_waterwater_prepfeed_watermeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_filter_sludgewater_prepfilter_sludgemeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_freezing_powerfreezingfreezing_powermeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.MJEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_brine_saltfreezingbrine_saltmeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_ammonia_chargefreezingammonia_chargemeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_ammonia_airfreezingammonia_airmeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersUse leak logs and charge-recovery inventory balance with destination and uncertainty; distinguish recovery and contained residue.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_spent_brinefreezingspent_brinemeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_harvest_dieselharvestharvest_dieselmeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_natural_ice_resourceharvestnatural_ice_resourcemeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_harvest_co2harvestharvest_co2measurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_storage_powerstoragestorage_powermeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.MJEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_outputstoragefinal_productmeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty
cp_meltwaterstoragemeltwatermeasurement_recordperiod; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiersCalibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.kgEach meter interval or shipment; monthly reconciliationComplete year or justified representative production campaignFrozen water at a declared harvest or ice-plant loading gateper 1 kg reference flowCalibration; original records; assay; balance residuals; uncertainty

Calculation Rules

rule_idApplies toFormula or ruleInputsOutputsource_ids
normalizationall cardsExchange = attributable period quantity / D. Reconcile inventories and cancel internal transfers before aggregation.cp_output; row-specific cp recordsper 1 kg reference flow
physical_balanceproductionReconcile feed water, ice solids, entrained liquid, drained/melted water, evaporation and stock changes. Meter electricity for freezing, defrosting and storage separately. Declare solid fraction and measured temperatures; never infer cooling capacity from equal bulk volume. Refrigerant loss equals reconciled charge, purchases, recovery and closing stock with leak records; a closed brine bath is not a fresh product feed each cycle.Matched mass, volume, composition and stock measurementsBalance residual and uncertainty

Data Quality Requirements

requirement_idApplies toRequirementEvidence
representativenessdatasetUse matching production and exchange periods, actual technology, geography and supplier state. Record startup, shutdown, seasonal variation and substitutions.collection records
identity_and_rangesall cardsUnresolved 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_idApplies toRulesource_ids
validate_referencefinal_productVerify 1 kg, positive D, product state, property/unit and every required qualifier. Each dataset fixes one product and route.
validate_balancesiteReconcile feed water, ice solids, entrained liquid, drained/melted water, evaporation and stock changes. Meter electricity for freezing, defrosting and storage separately. Declare solid fraction and measured temperatures; never infer cooling capacity from equal bulk volume. Refrigerant loss equals reconciled charge, purchases, recovery and closing stock with leak records; a closed brine bath is not a fresh product feed each cycle.
validate_coveragehandoffVerify 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

FieldValue
dataset_roleforeground_dataset
downstream_usesecondary_dataset; background_dataset
allowed_useSupply a declared solid-water material; no equivalent cooling-service claim
excluded_useEdible ice; carbon-dioxide dry ice; refrigeration equipment; downstream cooling service
required_metadatasite and year; natural/manufactured route; fresh/saline origin; shape; solid and entrained liquid fractions; temperature; intended non-edible use; water quality; refrigerant species; storage duration; gate; allocation
required_quality_disclosureIdentity and measurement gaps; boundary coverage; uncertainty; allocation; temporal and geographical representativeness
update_triggerChanged product, route, yield, supply, waste fate, site or representative period

11. Data Sources

Source idTypeReferenceUsed for
fao-ice-2004official_guidanceFAO Fisheries Technical Paper 436, The Use of Ice on Small Fishing Vessels, 2004, chapter 2. https://www.fao.org/4/y5013e/y5013e05.htmBlock, flake and tube freezing and storage process descriptions; historical equipment values are not adopted as current site intensities.
cpc3-notes-2025official_guidanceUNSD, 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.pdfClassification scope only; no process quantities.
ef-allocation-2021official_guidanceCommission Recommendation (EU) 2021/2279, Annex I section 4.5, consolidated 30 December 2021. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02021H2279-20211230Multifunctionality hierarchy; not a claim of complete PEF conformity.

Raw downloads

These files are byte-identical to the canonical files for this revision in the repository.

Structured rule index

This index comes from verified structured.yaml and retains the canonical English rule text.

System boundary rules · 3
Rule IDApplies toRuleSource IDs
boundary_operationssiteThis PCR covers production-gate supply of frozen water: manufactured block, flake or tube ice, artificial snow, or separately declared natural ice/snow harvesting. Fix one route, shape, temperature and retained liquid-water fraction. Include actual feed-water conditioning, freezing, harvest, separation, storage and loading. Natural harvesting does not inherit manufactured-freezing electricity. Cooling capacity and service duration are outside the mass reference.fao-ice-2004
boundary_partitionall exchangesInclude 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_completenessinventoryCards 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 IDApplies toRuleSource IDs
allocation_hierarchyjoint productionPrefer 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_productreference and co-productsSeparate product grades and natural versus manufactured routes before assigning shared refrigeration and storage meters by measured use. Allocate unavoidable shared overhead on a justified physical basis; do not credit discharged cold water or internal melt-water recycling.
allocation_wastewaste and recyclingClassify 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 IDApplies toRuleSource IDs
validate_referencefinal_productVerify 1 kg, positive D, product state, property/unit and every required qualifier. Each dataset fixes one product and route.
validate_balancesiteReconcile feed water, ice solids, entrained liquid, drained/melted water, evaporation and stock changes. Meter electricity for freezing, defrosting and storage separately. Declare solid fraction and measured temperatures; never infer cooling capacity from equal bulk volume. Refrigerant loss equals reconciled charge, purchases, recovery and closing stock with leak records; a closed brine bath is not a fresh product feed each cycle.
validate_coveragehandoffVerify 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 · 4
Process IDProcess nameInput flowsOutput flows
water_prepFeed-water conditioning11
freezingFreezing and product separation32
harvestNatural ice/snow harvesting21
storageCold storage and gate handling12

Complete field inspector

Loads this record’s complete manifest and structured projection on demand; values are never truncated. Requires JavaScript.

On this page