Parts for the goods of subclasses 43922, 43923 and 43933; weighing machine weights; parts of agricultural or horticultural mechanical appliances for projecting, dispersing or spraying liquids or powders

1. Scope and Applicability

This PCR governs gate-to-gate foreground data production for saleable parts of the machinery identified below and for weighing-machine weights. It covers a declared batch of one specified part number, or a mass-aggregated family only when all members share material composition, manufacturing route, quality specification, market state, production site, and reporting period. It applies to metal and polymer parts made by purchased-material preparation, forming, machining, joining, heat treatment, cleaning, surface finishing, inspection, and packaging, with each activity included only when it actually occurs.

Complete weighing machinery, complete fire extinguishers or spraying appliances, complete calendering or rolling machines, agricultural or horticultural spraying appliances themselves, metal-rolling-mill parts, unrelated machinery parts, repair services, capital equipment, distribution, use, and end-of-life are excluded. The official CPC identity establishes category scope but does not prescribe a material or manufacturing route.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.general-purpose-machinery.parts-for-the-goods-of-subclasses-43922-43923-and-43933-weighing-machine-weights-parts-3e51a445
classification_refs	CPC 3.0: 43943 (exact classification context; mapping acceptance remains separately governed)
covered_products	Parts for CPC 43922 weighing machinery; parts for CPC 43923 fire extinguishers, spray guns, blasting and similar projecting machinery; parts for CPC 43933 calendering or other rolling machines except machines for metals or glass; weighing-machine weights; and parts of agricultural or horticultural mechanical appliances for projecting, dispersing or spraying liquids or powders
excluded_products	Complete machinery or appliances; balances of sensitivity 5 cg or better; parts of metal- or glass-rolling machines; generic non-electrical machinery parts not demonstrably within this boundary; repair services; tooling and capital equipment
representative_product	One declared saleable machinery part or weighing-machine weight conforming to its drawing, bill of materials, and acceptance specification
production_route	Route-specific manufacture from declared purchased metal or polymer feedstock, including only the forming, machining, joining, heat-treatment, cleaning, coating, inspection, and packaging operations actually performed
market_state	Finished, inspected, saleable part at the manufacturing-site gate, with packaging included only when supplied with the product

3. Reference Flow

Field	Value
What	Provide a finished part or weighing-machine weight within the covered boundary and conforming to the declared drawing and acceptance specification
How much	1,000 kg net mass of conforming saleable parts, excluding packaging mass
How well	Meets the declared part number, material grade or formulation, dimensional tolerances, surface condition, coating specification, inspection plan, and applicable legal or customer requirements
How long or cycle	One completed manufacturing batch represented over the declared reporting period; no use-life performance is claimed
reference_flow_link	Net conforming output from component_manufacture; packaging, rejects, and production scrap are separate exchanges

Field	Value
Reference amount	1,000 kg
Reference product flow	Parts for the goods of subclasses 43922, 43923 and 43933, weighing machine weights, parts of agricultural or horticultural mechanical appliances for projecting, dispersing or spraying liquids or powders 2e29c602-77c9-4507-a7de-ccac1ff525b8
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	CPC-covered product subtype; part number or family rule; parent-machine application; material grade or polymer formulation; net product mass; drawing revision; manufacturing route; heat treatment; surface treatment or coating; quality specification and inspection status; included packaging; production site and geography; technology; reporting period; recycled-content claim basis

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_net_mass	reference product and mass-normalized exchanges	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Determine net conforming product mass after final inspection and before packaging; exclude packaging, rejects, retained samples, work in progress, and reusable transport fixtures.
batch_normalization	all inventory rows	Row-specific property	row reference unit per 1,000 kg	Normalize only records for the same site, route, product family, and reporting period by multiplying the recorded exchange by 1,000 and dividing by net conforming product mass in kg.
electricity_energy	purchased electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve the metered energy basis; convert kWh using 1 kWh = 3.6 MJ, and disclose grid, voltage, geography, losses, and on-site generation.
gas_volume_conditions	natural gas and industrial oxygen	Volume 93a60a56-a3c8-22da-a746-0800200c9a66	m3	State metering reference temperature and pressure and use one consistent reference condition; do not mix standard, normal, and actual cubic metres without documented conversion.
mass_balance	material inputs and outputs	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Reconcile purchased material with conforming product, co-products, scrap, waste, emissions, stock change, and documented measurement loss.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Purchased feedstocks, chemicals, gases, energy, water, and packaging are received at the manufacturing-site gate with supplier product state and upstream dataset declared
starting_condition_role	Upstream cutoff between supplier production and foreground part manufacture
product_classification_scope	The foreground output must be demonstrably within the covered semantic boundary; CPC 43943 is classification context rather than canonical identity
recursive_input_rule	A purchased component within this PCR is one upstream product input with its own supplier dataset; do not recursively reproduce its manufacture inside the same foreground process
upstream_dataset_requirement	Link each purchased input to a geographically and technologically representative upstream dataset and disclose proxies
disclosure	Declare site, route, product subtype, family rule, material and recycled content, included and excluded operations, surface treatment, packaging boundary, allocation, reporting period, and upstream proxies

rule_id	Applies to	Rule	source_ids
boundary_gate_to_gate	foreground system	Include receipt and internal handling of purchased inputs, all on-site operations needed for conforming parts, on-site utilities and treatment, direct emissions, production waste, inspection, and supplied packaging through the outbound site gate.	eu-pef-method-2021
boundary_route_disclosure	route-specific operations	Include forming, machining, joining, heat treatment, aqueous or solvent cleaning, coating, and finishing only when performed; record outsourced processing as an upstream product or service dataset.	eu-jrc-sf-bref-2024, eu-jrc-stm-bref-2006, eu-jrc-sts-bref-2020
boundary_exclusions	excluded life-cycle stages	Exclude capital goods, employee commuting, downstream distribution, installation, maintenance, use, and end-of-life unless the study explicitly expands and reports them separately.	eu-pef-method-2021

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
component_manufacture	Route-specific component manufacture, finishing, inspection, and packaging	required	Always include; disclose actual operations and add one atomic row for every other actual exchange	Foreground production	1,000 kg net conforming saleable part output

Process: Route-specific component manufacture, finishing, inspection, and packaging (component_manufacture)

Inputs

Product flows

Non-alloy steel bar feedstock (non_alloy_steel_bars)

Record only when this exact material state appears in the bill of materials; other steel grades or forms require separate rows.

• Selected flow: Non-alloy steel bars b904bee3-489f-4ee7-88b9-2a9a06d62113
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Supplier receipts plus opening stock minus closing stock consumed by the batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_packaging_records
• Sources: eu-jrc-sf-bref-2024

Primary aluminium-alloy sheet feedstock (primary_aluminium_alloy_sheet)

Record only when this exact purchased state is used; do not merge strip, ingot, secondary alloy, or other aluminium forms.

• Selected flow: Primary aluminum alloy sheet 2a9549cc-dc9e-43a7-9379-7a0c0a0e4832
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Supplier receipts plus opening stock minus closing stock consumed by the batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_packaging_records
• Sources: eu-jrc-sf-bref-2024

Cast-iron feedstock (cast_iron_feedstock)

Record only for routes that purchase cast iron; the UUID is unresolved because the exact-name candidate has a conflicting classification.

• Selected flow: Cast-iron feedstock
• Flow property / unit: Mass / kg
• Amount rule: Supplier receipts plus opening stock minus closing stock consumed by the batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_packaging_records
• Sources: eu-jrc-sf-bref-2024

Polypropylene granulate (polypropylene_granulate)

Record only for polypropylene moulding routes; other polymers and recycled formulations require separate rows.

• Selected flow: polypropylene granulate (PP) 4f19f11d-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Supplier receipts plus opening stock minus closing stock consumed by the batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_packaging_records
• Sources:

Electricity (electricity)

Include all purchased electricity used by production equipment, ventilation, compressed-air generation, process cooling, cleaning, coating, inspection, and packaging.

• Selected flow: Electricity 67b723a9-6f63-4802-adca-b52ce7967d47
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ / Units of energy 93a60a57-a3c8-11da-a746-0800200c9a66
• Amount rule: Dedicated meter reading or documented causal allocation from a reconciled site meter
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_gas_records
• Sources:

Gaseous natural gas (natural_gas)

Include only when natural gas is combusted on site for melting, heating, heat treatment, coating cure, or another declared operation.

• Selected flow: natural gas in the gaseous state 4f19ca0e-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Volume 93a60a56-a3c8-22da-a746-0800200c9a66 / m3 / Units of volume 93a60a57-a3c8-12da-a746-0800200c9a66
• Amount rule: Metered volume attributable to the batch at disclosed reference conditions
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_gas_records
• Sources: eu-jrc-sf-bref-2024

Industrial oxygen (industrial_oxygen)

Include only when purchased oxygen is consumed in thermal cutting, melting, or another declared operation.

• Selected flow: Industrial oxygen bd4b0f96-2090-4806-a648-335ab20ff401
• Flow property / unit: Volume 93a60a56-a3c8-22da-a746-0800200c9a66 / m3 / Units of volume 93a60a57-a3c8-12da-a746-0800200c9a66
• Amount rule: Supplier or flow-meter volume attributable to the batch with pressure, purity, temperature, and supply boundary disclosed
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_gas_records
• Sources: eu-jrc-sf-bref-2024

Carbon-dioxide shielding gas (carbon_dioxide_shielding_gas)

Include only when carbon dioxide is purchased for welding; do not use this row for combustion emissions.

• Selected flow: Carbon dioxide 27f41c1c-535e-4d2a-bce9-2c7f4de11549
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Cylinder inventory balance or mass-flow record attributable to the batch
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_gas_records
• Sources:

Process water (process_water)

Include only water consumed or incorporated in machining, cooling, aqueous cleaning, rinsing, or surface treatment; separately disclose recirculation.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Make-up water meter or tank balance, excluding internally recirculated water
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_chemical_records
• Sources: eu-jrc-stm-bref-2006

Sodium hydroxide (sodium_hydroxide)

Include only when consumed in aqueous cleaning or surface treatment; report supplied solution mass and concentration.

• Selected flow: Sodium hydroxide e0abcced-0611-4c24-9290-5a2c5a0c4169
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Supplier issue record for supplied product attributable to the batch, with concentration retained
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_chemical_records
• Sources: eu-jrc-stm-bref-2006

Cutting fluid (cutting_fluid)

Include fresh cutting fluid added to machining systems; disclose formulation, dilution water, recirculation, and stock change.

• Selected flow: Cutting Fluid 576d250f-4f36-4385-939d-0f03b8f95a10
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Fresh concentrate issued plus opening stock minus closing stock attributable to the batch
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_chemical_records
• Sources: eu-jrc-sf-bref-2024

Powder coating (powder_coating)

Include only powder coating applied to the declared parts; report fresh input net of documented recovery to stock.

• Selected flow: Powder Coating 0c581697-0eed-4b86-a070-b94966eb7344
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Fresh powder issued plus opening stock minus closing stock and recovered powder returned to stock
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_chemical_records
• Sources: eu-jrc-sts-bref-2020

Corrugated-cardboard packaging (corrugated_cardboard)

Include only corrugated cardboard supplied with the saleable product; exclude reusable packaging unless its allocated loss is recorded.

• Selected flow: Corrugated cardboard 8bde297e-98df-463f-bcb4-0db52bf6e0b5
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Supplied item count multiplied by verified item mass, or direct packaging issue mass
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_material_packaging_records
• Sources:

Polyethylene packaging film (polyethylene_packaging_film)

Include only polyethylene film supplied with the product. The UUID is unresolved because the exact-name candidate has a conflicting classification.

• Selected flow: Polyethylene packaging film
• Flow property / unit: Mass / kg
• Amount rule: Supplied item count or length multiplied by verified unit mass, or direct issue mass
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_material_packaging_records
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Conforming saleable reference product (reference_product_output)

Record only inspected saleable parts within the boundary; rejects and rework-in-progress are excluded.

• Selected flow: Parts for the goods of subclasses 43922, 43923 and 43933, weighing machine weights, parts of agricultural or horticultural mechanical appliances for projecting, dispersing or spraying liquids or powders 2e29c602-77c9-4507-a7de-ccac1ff525b8
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Set to 1,000 kg after normalization from measured net conforming batch mass
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1,000 kg reference product output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_output_waste_emission_records
• Sources: un-cpc-3-0-structure-2025

Waste flows

Post-industrial steel scrap (post_industrial_steel_scrap)

Include steel offcuts, chips, and rejected steel parts leaving as scrap; separately record other metal and polymer wastes.

• Selected flow: Post-industrial steel scrap c143745d-be4f-4d8f-b403-2dcbfe685349
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Weighed outgoing scrap plus closing scrap stock minus opening scrap stock attributable to the batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_output_waste_emission_records
• Sources: eu-jrc-sf-bref-2024

Cleaning wastewater (cleaning_wastewater)

Include only wastewater discharged or sent to treatment from aqueous cleaning or surface treatment; disclose composition, treatment, and destination.

• Selected flow: Wastewater from cleaning f0402393-e82c-47e8-9cd8-a486c97f3e89
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Discharge meter, tank transfer mass, or verified volume-to-mass conversion attributable to the batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_output_waste_emission_records
• Sources: eu-jrc-stm-bref-2006

Elementary flows

Fossil carbon dioxide to air (fossil_co2_air_emission)

Include direct fossil carbon dioxide from on-site fuel combustion; exclude upstream electricity emissions and purchased shielding-gas input.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg / Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Direct measurement or calculation from metered fossil fuel using a documented carbon-content method
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_output_waste_emission_records
• Sources:

PM10 to air (pm10_air_emission)

Include measured or permitted PM10 from grinding, blasting, thermal cutting, or coating only when present. The UUID remains unresolved until the site release compartment is verified.

• Selected flow: particles (PM10), emission to air
• Flow property / unit: Mass / kg
• Amount rule: Site-specific measurement or documented calculation from control-device records and a verified emission method
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net conforming saleable part output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_output_waste_emission_records
• Sources: eu-jrc-sf-bref-2024, eu-jrc-sts-bref-2020

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_avoid	shared operations and utilities	Avoid allocation by collecting product-line or batch-specific records and subdividing shared operations wherever technically feasible.	eu-pef-method-2021
allocation_physical	unavoidable shared inputs, wastes, and emissions	When subdivision is infeasible, use a documented causal physical driver such as machine hours, metered energy, processed mass, bath loading, or coating area; demonstrate why it represents the exchange and keep one method throughout the period.	eu-pef-method-2021
allocation_other	cases without a defensible physical relationship	Use another relationship, including economic allocation, only after documenting why subdivision and physical allocation are infeasible; report the factor, period, products, sensitivity, and share. Do not credit scrap or recycling without a separately declared method.	eu-pef-method-2021

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_packaging_records	component_manufacture	material and supplied packaging by row_id	invoice, receipt, issue, stock count, bill of materials, item-mass test	identity, grade or formulation, supplier, quantity, unit, lot, opening and closing stock, batch, packaging count, item mass	Reconcile receipts, issues, returns, and stocks; weigh representative packaging when converting count to mass	kg	each batch; monthly reconciliation	output reporting period	all included lines at the site	Sum batch-attributable consumption by atomic flow and normalize	calibrated scale, supplier specification, stock reconciliation, bill-of-material revision
cp_energy_gas_records	component_manufacture	electricity and each gas by row_id	meter, invoice, cylinder balance, runtime	meter readings, invoice quantity, unit, reference conditions, purity, cylinder stock, line, batch, allocation driver	Prefer dedicated meters; otherwise allocate a reconciled site total using a causal physical driver	MJ, m3, or kg by row	meter interval or cylinder change; monthly aggregation	output reporting period	included equipment and utilities	Sum net purchases, adjust stock or exports, allocate, and normalize	calibration, invoice reconciliation, reference-condition record, allocation worksheet
cp_water_chemical_records	component_manufacture	process water and each chemical by row_id	meter, tank balance, issue, stock count, formulation	fresh input, concentration, dilution water, recovered amount, opening and closing stock, batch, line	Record fresh material crossing the boundary and separately track internal recirculation and recovery to stock	kg	each batch; monthly reconciliation	output reporting period	included wet, machining, and coating operations	Net fresh input equals receipts or issues plus opening stock minus closing stock and returns; normalize	calibration, concentration certificate, bath log, inventory reconciliation
cp_output_waste_emission_records	component_manufacture	product, each waste, and each direct emission by row_id	production mass, inspection, waste manifest, meter, stack test, fuel record	output and reject mass, waste mass, stock change, discharge, contaminant, treatment, fuel carbon data, PM10 result, compartment	Weigh outputs and wastes, meter discharges, and use direct emissions measurement where available	kg	each batch, discharge, or required test	output reporting period	all included release points and destinations	Reconcile stocks, calculate emissions from collected inputs where needed, and normalize	calibration, inspection release, waste manifest, laboratory or stack report, calculation worksheet

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_normalize_reference_mass	every inventory amount	normalized amount = batch-attributable exchange × 1,000 / net conforming product mass	collected exchange; net conforming product mass	row amount per 1,000 kg reference product
calc_electricity_conversion	electricity recorded in kWh	electricity MJ = purchased kWh × 3.6	purchased kWh	purchased MJ
calc_packaging_mass	count- or length-based packaging	packaging mass = verified unit mass × count, or verified linear mass × length	count or length; verified mass factor	kg packaging supplied
calc_fossil_co2	fossil combustion without direct CO2 measurement	Use collected fuel, verified carbon content or an approved fuel-specific factor, oxidation basis, and documented unit conversions; identify the method and factor source in the dataset	fuel quantity; carbon content or factor; oxidation basis	kg fossil CO2

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	reference product and every exchange	Retain family rule, drawing revision, parent-machine application, material or formulation, supplier or destination, resolved Tiangong identity, and proxy rationale.	release record, bill of materials, supplier specification, manifest, UUID audit
dq_route	boundary and process map	Identify every actual operation, outsourced operation, and atomic exchange not prelisted here.	route sheet, process flow, work instructions, supplier service records
dq_measurement	quantities	Use calibrated meters and scales where available; document estimation, conversion, allocation, reference conditions, concentration, stock change, and uncertainty.	calibration, meter log, laboratory result, calculation worksheet
dq_temporal	reporting period	Use a continuous representative period and disclose shutdowns, startup lots, abnormal rejects, rework, and capacity utilization.	dated production, meter, stock, inspection, and waste records
dq_completeness	inventory	Reconcile material and output mass and explain gaps; add each actual material, energy, chemical, gas, waste, wastewater, and elementary emission as a separate row.	mass-balance worksheet and completeness checklist
dq_ranges	important flows	Until two independent boundary-compatible original sources support an external range, use foreground collection without a numerical default and flag comparisons for review.	unresolved range-evidence register and foreground records

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_identity	reference product	Fail if output is outside the covered boundary, the reference UUID differs, or required product, material, route, quality, geography, technology, or period qualifiers are missing.	un-cpc-3-0-structure-2025
validate_reference_amount	reference flow	Require exactly 1,000 kg net conforming product after normalization; exclude packaging, rejects, scrap, and work in progress.
validate_inventory_atomicity	process inventory	Fail any combined or umbrella Selected flow; require one direction, flow type, property, unit, amount method, and applicability condition per exchange.
validate_uuid_semantics	UUID-bearing rows	Require UUID, English and official Chinese names, flow type, classification, property, unit group, and product state to match; unresolved rows remain UUID-empty with documented reasons.
validate_energy_gas	electricity and gases	Require electricity conversion and gas reference conditions, purity or composition, supply boundary, geography, and allocation.
validate_mass_balance	material and output records	Require a mass balance and explanation for measurement loss, stock change, scrap, waste, emissions, and unreconciled difference.
validate_allocation	shared processes	Require allocation hierarchy, driver, factor, period, products, and sensitivity; reject undocumented allocation or double credit for scrap.	eu-pef-method-2021
validate_ranges	numerical external ranges	Reject an inferred range unless at least two independent original sources have compatible boundaries, functional unit, and product state and the synthesis explains geographic and technological differences.

10. Published Dataset Profile

Field	Value
dataset_role	secondary_dataset or background_dataset after review and publication
downstream_use	Foreground process modelling of the declared covered part or weighing-machine weight and compatible lifecycle-model aggregation
allowed_use	Declared product subtype, material, route, quality, geography, technology, packaging boundary, and period, or a documented representative average of compatible records
excluded_use	Complete machinery, unrelated parts, different materials or routes without adjustment, use, maintenance, distribution, end-of-life, or materially different geography or technology
required_metadata	PCR id and version when published; reference UUID; subtype; family rule; parent application; material and recycled content; net mass; drawing and specification; route; site; geography; technology; period; operations; packaging; upstream datasets and proxies; allocation
required_quality_disclosure	Primary-data share; meter and scale coverage; representativeness; mass balance; allocation shares; missing or estimated exchanges; unresolved UUIDs; emission methods; upstream proxies; uncertainty and review status
update_trigger	Change in family, material, recycled content, supplier, route, heat or surface treatment, packaging, site, energy, emission control, allocation, upstream dataset, or material shift in yield, scrap, water, energy, or emissions

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, https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Structure_30Jun2025.csv (retrieved 2026-09-06)	Official category identity, parent subclasses, coverage, and exclusions
eu-jrc-sf-bref-2024	Official guidance (official_guidance)	European Commission Joint Research Centre, Smitheries and Foundries Industry BREF official page, https://bureau-industrial-transformation.jrc.ec.europa.eu/reference/smitheries-and-foundries-industry (retrieved 2026-09-06)	Conditional forming, machining, finishing, heat treatment, casting, and material-management decomposition
eu-jrc-stm-bref-2006	Official guidance (official_guidance)	European Commission Joint Research Centre, Surface Treatment of Metals and Plastics BREF official page, https://bureau-industrial-transformation.jrc.ec.europa.eu/reference/surface-treatment-metals-and-plastics (retrieved 2026-09-06)	Conditional aqueous electrolytic or chemical surface treatment
eu-jrc-sts-bref-2020	Official guidance (official_guidance)	European Commission Joint Research Centre, Surface Treatment Using Organic Solvents BREF official page, https://bureau-industrial-transformation.jrc.ec.europa.eu/reference/surface-treatment-using-organic-solvents-including-wood-and-wood-products-preservation (retrieved 2026-09-06)	Conditional coating, painting, cleaning, and degreasing
eu-pef-method-2021	Standard (standard)	Commission Recommendation (EU) 2021/2279, Product Environmental Footprint Method, consolidated 30 December 2021, https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX%3A02021H2279-20211230 (retrieved 2026-09-06)	Functional unit, boundary, company-specific data, quality, and multifunctionality hierarchy