Fire extinguishers; spray guns and similar appliances; steam or sand blasting machines and similar jet projecting machines; mechanical appliances for projecting, dispersing or spraying liquids or powders, except agricultural or horticultural appliances

1. Scope and Applicability

This PCR applies to factory manufacture of complete fire extinguishers, spray guns and similar appliances, steam- or sand-blasting machines and similar jet-projecting machines, and other mechanical appliances that project, disperse, or spray liquids or powders. It covers the finished appliance in its declared market-ready configuration at the factory gate, including an extinguishing or process-medium charge only when that charge is supplied with the product.

Agricultural and horticultural spraying appliances, separately supplied parts, fire-extinguishing chemical preparations sold without an appliance, distribution, installation, use, maintenance, refill, and end-of-life are excluded. The data producer shall select and declare one product model or a production-weighted product family; the broad classification title shall not be used to average functionally dissimilar appliances without disclosing the product mix.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.general-purpose-machinery.fire-extinguishers-spray-guns-and-similar-appliances-steam-or-sand-blasting-machines-an-c73ef8b9
classification_refs	CPC 3.0: 43923 (un-cpc-3-0-structure-2025)
covered_products	Complete fire extinguishers; spray guns and similar appliances; steam- or sand-blasting machines and similar jet-projecting machines; other non-agricultural and non-horticultural mechanical appliances for projecting, dispersing, or spraying liquids or powders
excluded_products	Agricultural or horticultural spraying appliances; separately supplied parts; extinguishing preparations without an appliance; distribution, use, refill, maintenance, and end-of-life services
representative_product	One declared finished appliance model or a disclosed production-weighted family within the covered boundary
production_route	Receipt of purchased materials and components; route-applicable fabrication and joining; route-applicable aqueous cleaning; assembly, optional charging, functional or pressure testing, and sales packaging
market_state	Finished, acceptance-tested, market-ready appliance at the manufacturing-site gate, with supplied charge, accessories, and sales packaging status declared

3. Reference Flow

Field	Value
What	Provide a finished appliance that performs its declared projecting, dispersing, spraying, extinguishing, steam-blasting, or sand-blasting function
How much	1 kg of finished market-ready appliance
How well	Conforms to the declared product specification and passes the manufacturer's applicable acceptance tests in the supplied configuration
How long or cycle	One factory-gate delivery; service life and use cycles are outside this mass-normalized manufacturing reference and shall be declared separately for downstream functional comparisons
reference_flow_link	The reference flow is exactly 1 kg of the finished CPC 43923 appliance output recorded in finished_appliance_output

Field	Value
Reference amount	1
Reference product flow	Fire extinguishers, spray guns and similar appliances, steam or sand blasting machines and similar jet projecting machines, mechanical appliances for projecting, dispersing or spraying liquids or powders, except agricultural or horticultural appliances 3efb484d-b04a-455f-97df-130b2ed8724f
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	product type and model; intended projected medium; rated capacity or throughput; working pressure where applicable; governing product specification; acceptance-test method and result; supplied charge and accessories; packaging included or excluded; production geography; manufacturing technology; reporting period; product-family weighting method if applicable

When constructing a foreground data package, the items listed in Required qualifiers must be declared in dataset metadata, process notes, reference flow comment, product description, or an equivalent data package field. Missing required qualifiers make the reference flow definition incomplete for that data package.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass	Finished reference appliance	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Measure net finished-product mass consistently with the declared supplied configuration. Include charge, accessories, and sales packaging only when declared included; do not mix included and excluded configurations in one denominator.
energy_conversion	Electricity inventory	Net calorific value 93a60a56-a3c8-11da-a746-0800200b9a66	MJ	Preserve meter units in raw records; convert kWh to MJ with 1 kWh = 3.6 MJ only during calculation and retain the original reading and conversion.
gas_volume_basis	Natural gas and industrial oxygen	Volume 93a60a56-a3c8-22da-a746-0800200c9a66	m3	Report the metered reference conditions or supplier billing basis. Do not combine volumes measured at materially different temperature or pressure conditions without conversion and disclosure.
water_mass_basis	Process water and cleaning wastewater	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Use measured mass or convert measured volume with a documented density and reference condition; retain the raw volume when conversion is used.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Purchased materials, components, gases, chemicals, water, electricity, and packaging cross the manufacturing-site gate in their supplier-delivered states
starting_condition_role	Upstream product inputs to the foreground appliance-manufacturing system
product_classification_scope	Complete appliances within the reviewed CPC 3.0 code 43923 semantic boundary
recursive_input_rule	A purchased complete CPC 43923 appliance incorporated into the declared product shall be recorded once as an upstream product input with its own dataset; do not recursively recreate its manufacture inside this foreground system
upstream_dataset_requirement	Use geographically and technologically representative upstream datasets for every purchased input; supplier-specific data take precedence when quality and boundary are documented
disclosure	Declare the product model or weighted product family, supplied configuration, manufacturing sites, included route-conditional processes, treatment ownership, packaging status, cut-offs, and any excluded production stage

rule_id	Applies to	Rule	source_ids
boundary_factory_gate	foreground_system	Include receipt-to-factory-gate fabrication, cleaning when used, assembly, charging when supplied, acceptance testing, and sales packaging when supplied; exclude distribution, installation, use, refill, maintenance, and end-of-life.	un-cpc-3-0-structure-2025
boundary_route_condition	route_specific_processes	Include each conditional process and atomic exchange only when production records show that it occurs for the declared product model or weighted family; record a demonstrable absence as not applicable rather than zero consumption.
boundary_capital_goods	capital_goods	Exclude capital equipment and buildings from the foreground inventory unless the study goal explicitly includes them; disclose any inclusion and its allocation basis.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
parts_fabrication	Parts fabrication and joining	required	Always include site-controlled cutting, forming, machining, welding, and joining operations that occur for the declared product; record purchased finished components only at the point they cross the site boundary	foreground production	Per 1 kg finished reference appliance
aqueous_cleaning	Aqueous component cleaning	conditional	Include when water-based cleaning, degreasing, or rinsing occurs under site control	foreground conditioning	Per 1 kg finished reference appliance
assembly_test_pack	Assembly, charging, testing, and packaging	required	Always include assembly and acceptance testing; include charge and sales packaging rows only when supplied with the declared product	foreground final production	1 kg finished market-ready reference appliance

Process: Parts fabrication and joining (parts_fabrication)

Inputs

Product flows

Steel sheet input (steel_sheet_input)

Record purchased steel sheet used in site-controlled appliance bodies, frames, vessels, guards, or housings when it crosses the foreground boundary.

• Selected flow: Steel Sheet 13082a6a-e820-45ec-89f5-3c2c3650495b
• Flow property / unit: Mass / kg
• Amount rule: Measured issued mass minus documented unopened returns for the declared production output
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_mass
• Sources:

Aluminium sheet input (aluminium_sheet_input)

Record purchased aluminium sheet only for product models in which it is fabricated under site control.

• Selected flow: aluminium sheet 4f197be4-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Mass / kg
• Amount rule: Measured issued mass minus documented unopened returns for the declared production output
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_mass
• Sources:

Fabrication electricity (fabrication_electricity)

Record purchased electrical energy consumed by site-controlled cutting, forming, machining, welding, and joining equipment.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered electricity or allocated facility meter consumption for the fabrication production period
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_records
• Sources:

Natural gas for thermal fabrication (natural_gas_input)

Record gaseous natural gas only when it is consumed in site-controlled heating, cutting, brazing, or other thermal fabrication equipment.

• Selected flow: natural gas in the gaseous state 4f19ca0e-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Volume / m3
• Amount rule: Metered or invoice-reconciled natural-gas volume attributable to applicable fabrication equipment
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_gas_records
• Sources:

Industrial oxygen for cutting or joining (industrial_oxygen_input)

Record industrial oxygen only when consumed in site-controlled oxy-fuel cutting, brazing, or joining.

• Selected flow: Industrial oxygen bd4b0f96-2090-4806-a648-335ab20ff401
• Flow property / unit: Volume / m3
• Amount rule: Supplier delivery or manifold-meter volume attributable to applicable fabrication operations
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_gas_records
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Steel scrap from fabrication (steel_scrap_output)

Record segregated ferrous offcuts, chips, and rejected steel parts that leave the foreground process as steel scrap.

• Selected flow: Steel scrap 8658611f-0588-4eb7-9490-46bcd02b3c2f
• Flow property / unit: Mass / kg
• Amount rule: Measured outbound scrap mass plus inventory change, excluding internally reworked material
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_waste_mass
• Sources:

Elementary flows

Fossil carbon dioxide from on-site natural-gas combustion (fossil_co2_emission)

Record only direct fossil carbon dioxide crossing to air from natural-gas combustion in equipment included in this process; do not add upstream electricity emissions.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Calculate from measured natural-gas consumption and the reviewed fuel-carbon or emission factor used by the foreground study
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_direct_emissions
• Sources:

Process: Aqueous component cleaning (aqueous_cleaning)

Inputs

Product flows

Process water for cleaning (cleaning_process_water)

Record process water entering aqueous cleaning, degreasing, or rinsing when this route is used.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: Metered makeup water plus measured batch additions minus documented recovered water returned across the same process boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_records
• Sources:

Sodium hydroxide for cleaning (sodium_hydroxide_input)

Record sodium hydroxide product mass only when it is added to an included alkaline cleaning bath; report solution concentration in supporting records.

• Selected flow: Sodium hydroxide e0abcced-0611-4c24-9290-5a2c5a0c4169
• Flow property / unit: Mass / kg
• Amount rule: Net issued sodium-hydroxide product mass attributable to the declared production output
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_chemical_records
• Sources:

Cleaning electricity (cleaning_electricity)

Record purchased electrical energy used by included cleaning, pumping, heating, ventilation, and drying equipment.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered or allocated electricity for the included cleaning route
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_records
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Cleaning wastewater (cleaning_wastewater_output)

Record wastewater transferred from included aqueous cleaning to on-site or off-site treatment, before treatment outside the declared process boundary.

• Selected flow: Wastewater from cleaning f0402393-e82c-47e8-9cd8-a486c97f3e89
• Flow property / unit: Mass / kg
• Amount rule: Measured discharge mass or volume converted to mass, adjusted for tank inventory change and documented internal reuse
• Value mode: Calculated value (calculated_value)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_wastewater_records
• Sources:

Elementary flows

Process: Assembly, charging, testing, and packaging (assembly_test_pack)

Inputs

Product flows

Assembly and test electricity (assembly_electricity)

Record purchased electrical energy used for assembly tools, compressors, charging equipment, acceptance-test rigs, and packaging equipment.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered or allocated electricity for assembly, charging, testing, and packaging during the production period
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_records
• Sources:

Carbon dioxide supplied as product charge (carbon_dioxide_charge)

Record carbon dioxide product mass only when it is filled into and supplied with the finished appliance; do not report it as an elementary emission unless a measured release occurs.

• Selected flow: Carbon dioxide 27f41c1c-535e-4d2a-bce9-2c7f4de11549
• Flow property / unit: Mass / kg
• Amount rule: Filled mass confirmed by charging records and finished-product mass checks, net of captured and returned gas
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_charge_records
• Sources:

Process water for hydrostatic testing (hydrotest_process_water)

Record process water makeup only when hydrostatic or water-based acceptance testing is performed under site control.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: Measured test-loop makeup plus batch additions minus recovered water returned across the same boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_records
• Sources:

Corrugated board boxes (corrugated_box_input)

Record corrugated-board box mass only when this sales packaging is supplied with the reference appliance.

• Selected flow: corrugated board boxes 4f197bec-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Mass / kg
• Amount rule: Net issued mass of corrugated-board boxes attributable to the declared finished output
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per 1 kg finished reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_mass
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Finished market-ready appliance (finished_appliance_output)

Record the acceptance-tested finished appliance in the declared supplied configuration at the manufacturing-site gate.

• Selected flow: Fire extinguishers, spray guns and similar appliances, steam or sand blasting machines and similar jet projecting machines, mechanical appliances for projecting, dispersing or spraying liquids or powders, except agricultural or horticultural appliances 3efb484d-b04a-455f-97df-130b2ed8724f
• Flow property / unit: Mass / kg
• Amount rule: Fixed reference output of 1 kg; scale measured production totals to this denominator
• Value mode: Fixed value (fixed_value)
• Specificity: Generic (generic)
• Normalization basis: 1 kg finished market-ready reference appliance
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Identity reference (identity_reference)
• Sources:

Waste flows

Elementary flows

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_subdivision	shared_operations	Prefer process subdivision and direct metering or material issue records for product families and route-specific operations.
allocation_physical	residual_shared_inputs	If subdivision is impracticable, allocate residual shared energy and consumables using a documented physical driver that reflects use, such as machine time, measured energy, processed mass, or test cycles; do not default to revenue without justification.
allocation_scrap	recyclable_scrap	Report steel scrap at the point it leaves the foreground boundary. Do not apply an avoided-primary-material credit inside this PCR unless the study explicitly applies a disclosed system-expansion method consistently to all compared products.
allocation_mass_balance	material_balance	Reconcile input materials to finished product, measured waste, emissions where mass-relevant, and inventory change; investigate unexplained imbalance before publication.

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_material_mass	parts_fabrication	steel and aluminium sheet inputs	purchase receipt, warehouse issue, return, and inventory record	material identity; grade; opening stock; receipts; issued mass; returned mass; closing stock; product model	Reconcile controlled warehouse records to production orders	kg	Each issue and monthly reconciliation	Representative continuous 12-month period or complete shorter campaign	All sites performing included fabrication	Net consumed mass divided by accepted finished-product mass	Signed stock reconciliation; calibrated scale record; material specification; production order
cp_energy_records	all applicable processes	electricity input	utility meter, submeter, invoice, equipment log, and production record	opening reading; closing reading; meter multiplier; allocated shared use; downtime; accepted output	Prefer submeters; otherwise reconcile facility meter and allocate with documented physical driver	kWh retained raw; MJ reported	At least monthly and by campaign where available	Same reporting period as production output	All manufacturing sites in scope	Net electricity converted at 3.6 MJ/kWh and divided by accepted output mass	Meter calibration or utility invoice; allocation worksheet; production log
cp_gas_records	parts_fabrication	natural gas and industrial oxygen inputs	meter, cylinder or bulk delivery, inventory, and equipment log	gas identity; opening stock; deliveries; returns; closing stock; meter conditions; operation	Reconcile deliveries and inventories; use equipment meters where available	m3 at declared conditions	Each delivery and monthly reconciliation	Same reporting period as applicable operation	All sites using the gas	Net consumed volume at one declared reference condition divided by accepted output mass	Supplier statement; meter record; cylinder reconciliation; reference-condition record
cp_waste_mass	parts_fabrication	steel scrap output	scrap scale ticket, container log, inventory, and production record	waste identity; gross mass; tare; destination; opening and closing inventory; rework return	Reconcile weighed outbound scrap and inventory change	kg	Each shipment and monthly reconciliation	Same reporting period as production output	All sites producing steel scrap	Outbound net mass plus closing less opening waste inventory, divided by accepted output mass	Scale calibration; waste transfer record; reconciliation worksheet
cp_direct_emissions	parts_fabrication	direct fossil carbon dioxide	fuel record and reviewed factor record	fuel quantity; composition or net calorific value; factor; factor unit; oxidation assumption	Calculate only direct site emissions from included fuel combustion	kg	Each reporting-period calculation	Same reporting period as fuel use	All included combustion sources	Sum source-level emissions and divide by accepted output mass	Fuel record; factor citation in dataset; calculation worksheet; reviewer sign-off
cp_water_records	aqueous cleaning and assembly_test_pack	process water inputs	meter, batch sheet, tank log, and production record	opening reading; closing reading; batch additions; recovered return; density if converted	Reconcile dedicated meter or batch makeup and recovery	kg or m3 retained raw	Each batch or at least monthly	Same reporting period as applicable process	All sites using process water	Net water crossing each process boundary divided by accepted output mass	Meter calibration; batch log; density source; recovery reconciliation
cp_chemical_records	aqueous_cleaning	sodium hydroxide input	chemical issue, purchase, bath makeup, concentration, and inventory record	product identity; concentration; opening stock; additions; returns; closing stock	Reconcile product-mass additions and inventory; retain concentration separately	kg product	Each addition and monthly reconciliation	Same reporting period as cleaning	All included cleaning lines	Net product mass consumed divided by accepted output mass	Supplier specification; issue record; concentration test; stock reconciliation
cp_wastewater_records	aqueous_cleaning	cleaning wastewater output	discharge meter, tank transfer, treatment record, and inventory log	volume or mass; density; source process; pH; destination; opening and closing inventory; internal reuse	Reconcile discharge, tank inventory change, and reuse before external treatment	kg or m3 retained raw	Each discharge and monthly reconciliation	Same reporting period as cleaning	All included cleaning lines and treatment transfer points	Net wastewater leaving cleaning boundary divided by accepted output mass	Meter or scale calibration; transfer record; treatment record; mass-balance check
cp_charge_records	assembly_test_pack	carbon dioxide product charge	filling batch, cylinder, recovery, and finished-product record	gas identity; filled mass; recovered mass; returned mass; rejected units; accepted units	Reconcile net filled mass to accepted charged products	kg	Each filling batch	Same reporting period as charged products	All included filling lines	Net supplied charge in accepted products divided by accepted output mass	Calibrated filling scale; batch record; leak or recovery log; product specification
cp_packaging_mass	assembly_test_pack	corrugated-board box input	packaging bill of materials, issue, return, and production record	box identity; unit mass; issued count; returned count; rejected count; accepted output	Verify unit mass and reconcile net issued count	kg	Each production order and monthly reconciliation	Same reporting period as packaged products	All included packaging lines	Net box mass divided by accepted output mass	Packaging specification; calibrated unit-mass check; issue record; reconciliation

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_normalize_mass	all inventory rows	Normalized amount = reporting-period amount attributable to accepted products / accepted finished-product mass in the declared configuration	Attributable flow amount; accepted finished-product mass	Flow amount per 1 kg reference appliance
calc_electricity_mj	electricity rows	Reported MJ = metered kWh × 3.6; retain raw kWh and do not apply an upstream emission factor in the foreground amount	Metered kWh	MJ electricity
calc_inventory_change	materials and wastes	Consumption or output = receipts or transfers adjusted for opening stock, closing stock, documented returns, and internal reuse within the same boundary	Receipt, issue, return, reuse, opening-stock, and closing-stock records	Net boundary-crossing mass or volume
calc_direct_co2	fossil_co2_emission	Direct fossil CO2 = measured natural-gas quantity × reviewed factor on a compatible volume, mass, or energy basis; store the factor citation and basis in the produced dataset	Natural-gas record; reviewed factor; reference-condition or energy conversion	kg fossil CO2

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	reference product and inputs	Product model, material grade, gas or chemical identity, waste identity, and supplied configuration shall be traceable to specifications and production records.	Product specification; bill of materials; supplier record; waste transfer record
dq_temporal	all foreground records	Use one common representative reporting period; disclose shutdowns, start-up, abnormal production, and any shorter campaign.	Dated meter, inventory, and production records
dq_completeness	all mapped processes	Reconcile production orders to accepted output and document every applicable process, excluded process, zero, and not-applicable determination.	Process map sign-off; production reconciliation; exception log
dq_measurement	measured quantities	Use calibrated or utility-controlled meters and scales where available; document estimation, allocation, density conversion, and reference conditions.	Calibration certificates; invoices; calculation worksheets
dq_product_mix	product-family datasets	Weight models by accepted production mass and disclose model shares; do not combine product families with materially different functions without a stated downstream limitation.	Model-level output records; weighting worksheet; dataset metadata

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_identity	reference_flow	Confirm UUID, Mass property, kg unit, product model or family, supplied charge, accessories, packaging state, and factory-gate market state.
validate_process_coverage	process_map	Confirm all site-controlled fabrication and final assembly or testing are included, and every conditional cleaning, gas, charge, and packaging row is supported by occurrence or not-applicable evidence.
validate_atomic_flows	process_inventory	Confirm every row represents one physical, chemical, waste, or energy exchange and that electricity, each gas, water, chemical, packaging component, waste, and emission remain separate.
validate_mass_balance	material_balance	Reconcile input material and supplied charge to finished product, waste, direct mass emissions where relevant, and inventory change; document and review unexplained imbalance.
validate_energy	electricity_rows	Reconcile meter totals and allocations, verify 3.6 MJ/kWh conversion, and ensure upstream electricity emissions are not duplicated as direct elementary flows.
validate_bilingual	localized_inventory	Confirm English and Chinese files preserve row ids, UUIDs, controlled values, rule-id order, process order, and the exact public TianGong Chinese baseName for each UUID-bearing flow.

10. Published Dataset Profile

Field	Value
dataset_role	secondary_dataset; may serve as background_dataset only for the declared appliance model or disclosed product mix and geography
downstream_use	Manufacturing-stage process datasets and lifecyclemodel projections that require a mass-normalized factory-gate appliance input
allowed_use	Product-specific or transparently production-weighted manufacturing inventories within the declared technology, geography, time period, and supplied configuration
excluded_use	Functional comparison of unlike appliance types without service-performance normalization; agricultural or horticultural sprayers; distribution, use, refill, maintenance, or end-of-life modelling without additional rules
required_metadata	Product model or family shares; intended medium; capacity or throughput; working pressure where applicable; governing specification; acceptance test; charge, accessories, and packaging state; sites; geography; technology; period; upstream dataset choices; allocations; cut-offs
required_quality_disclosure	Primary-data coverage; meter and scale quality; allocation shares; mass-balance result; data gaps; estimates; route-specific exclusions; unresolved range evidence; representativeness limits
update_trigger	Change in product design, bill of materials, charge, process route, site, energy supply, allocation driver, packaging, acceptance testing, or reporting period that materially changes the inventory

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-3-0-structure-2025	Official guidance (official_guidance)	United Nations Statistics Division, CPC Version 3.0 Structure, 30 June 2025, official CSV: https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Structure_30Jun2025.csv; retrieved 2026-09-06; SHA-256 5cd2c1c4890dd6be16af48e9bb940fed48efff9865f39ff15edaa921da25fb7c	Original-text-verified CPC 43923 classification identity, included appliance types, and agricultural or horticultural exclusion