Parts for the goods of subclasses 46910, 46921 and 46929; electrical parts n.e.c. of machinery or apparatus

1. Scope and Applicability

This PCR applies to separately supplied parts of the electrical ignition, starting, generating, lighting, signalling, alarm, and related apparatus identified by CPC subclasses 46910, 46921, and 46929, together with electrical parts of machinery or apparatus not elsewhere classified under a more specific product category. It provides cradle-to-factory-gate rules for a declared part family and production route.

The PCR covers product-specific material acquisition, component fabrication or molding performed by the reporting facility, cleaning and surface finishing when used, assembly, outgoing testing, and saleable packaging when it crosses the factory-gate boundary. A foreground data package shall identify the particular part and shall not represent the entire CPC category as a homogeneous design.

Complete apparatus; non-electrical mechanical parts; electronic components classified separately; and parts assigned to more specific categories for motors, generators, transformers, converters, inductors, distribution or control apparatus, batteries, lamps, or other named equipment are excluded. Distribution, installation, host-equipment use, maintenance, and end-of-life are outside the default boundary.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.electrical-machinery-and-apparatus.parts-for-the-goods-of-subclasses-46910-46921-and-46929-electrical-parts-n-e-c-of-machi-15eedd3f
classification_refs	CPC 3.0: 46960 (exact classification context)
covered_products	Separately supplied parts of goods in CPC 46910, 46921, and 46929; other electrical parts n.e.c. of machinery or apparatus
excluded_products	Complete apparatus; non-electrical mechanical parts; electronic components and electrical parts assigned to another specific CPC subclass
representative_product	A saleable, specification-conforming electrical part supplied for incorporation into declared ignition, starting, signalling, alarm, or other machinery/apparatus applications
production_route	Product-specific combination of metal forming or machining, polymer molding, cleaning or finishing, assembly, curing, inspection, electrical or functional test, and packaging; every applied route step is declared
market_state	Separately supplied finished part at the manufacturing factory gate, including only packaging declared to cross that boundary

3. Reference Flow

Field	Value
What	Provision of a separately supplied CPC 46960 electrical machinery or apparatus part
How much	1 kg of saleable part output at the manufacturing factory gate
How well	Conforming to the declared drawing, material specification, electrical rating, insulation or protection class where applicable, and outgoing acceptance test
How long or cycle	One factory-gate delivery of the finished part; service life in the host apparatus is not represented
reference_flow_link	The measured mass of accepted saleable output represented by reference_product

Field	Value
Reference amount	1 kg
Reference product flow	Separately supplied CPC 46960 electrical machinery or apparatus part (Tiangong UUID unresolved)
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	part family and host-apparatus application; drawing or model identifier; principal materials and bill of materials; mass per item; electrical rating and insulation or ingress-protection class where applicable; fabrication, surface-treatment, assembly, and test routes; acceptance criteria and reject treatment; recycled-content claims and supplier geography; manufacturing geography and reference period; packaging state

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	Reference product and all mass-normalized rows	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Weigh accepted saleable output net of transport packaging excluded from the declared market state; normalize every inventory amount to exactly 1 kg of this accepted output.
item_to_mass	Item-count production and packaging records	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Convert counts to mass only with a contemporaneous measured mean net mass and retained sample size, lot, and measurement record.
electricity_energy	Purchased electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200b9a66	MJ	Preserve the metered energy unit and disclose every conversion factor; keep fabrication and assembly/test meters separate where records permit.
gas_volume	Gaseous natural gas	Volume 93a60a56-a3c8-22da-a746-0800200c9a66	m3	State meter reference conditions, billing period, and allocation to the declared route before normalizing gas volume.
water_mass	Process water and wastewater	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Prefer direct mass measurement; when volume is converted to mass, record temperature, density assumption, and source reading.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Purchased metals, polymers, resins, chemicals, energy, water, components, and packaging at the reporting facility gate, each with supplier, grade, recycled content, geography, and delivered state where applicable
starting_condition_role	Cradle-to-gate background inputs entering product-specific foreground fabrication, finishing, assembly, testing, and packaging
product_classification_scope	One declared CPC 46960 part family and market state; complete apparatus and more specifically classified parts are excluded
recursive_input_rule	A purchased input that is itself a CPC 46960 part is recorded once as an upstream product input with its supplier dataset; do not recursively reproduce its manufacturing inventory inside the receiving foreground process
upstream_dataset_requirement	Use geographically and technologically representative upstream datasets for every purchased material, component, energy carrier, water, chemical, and packaging input; disclose proxies and unresolved identities
disclosure	Declare part design, bill of materials, applied processes, facility geography, reference period, yield and rejects, internal recycling, packaging boundary, allocation, exclusions, and all departures from this PCR

rule_id	Applies to	Rule	source_ids
sb_cradle_to_gate	Product system boundary	Include product-specific upstream inputs and all applied on-site fabrication, finishing, assembly, testing, and saleable-packaging operations through the factory gate; exclude distribution, installation, use, and end-of-life unless a study explicitly extends the boundary.	ec-product-environmental-footprint-method-2021
sb_product_specific_records	Foreground data	Use the product-specific bill of materials and company-specific manufacturing activity data; facility totals may be used only after a documented causal allocation to the declared part family.	ec-product-environmental-footprint-method-2021
sb_conditional_routes	Conditional processes and flows	Include each conditional route and its atomic exchanges when it occurred for the declared product; mark it not applicable only with production-route evidence.	ifc-metal-plastic-rubber-ehs-2007
sb_completeness	Exclusions and cut-offs	Identify all material, energy, water, waste, and direct-emission exchanges; justify and quantify the potential significance of any exclusion rather than omitting a flow because its UUID or range is unresolved.	ec-product-environmental-footprint-method-2021

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
component_fabrication_and_finishing	Component fabrication and finishing	conditional	Include when the reporting facility forms, machines, molds, bonds, cleans, heat-treats, or surface-finishes material for the declared part.	Foreground material conversion and finishing	Measured accepted and rejected mass attributable to the declared part family
part_assembly_and_testing	Part assembly and outgoing testing	required	Always include final assembly or, for a one-piece part, final inspection and acceptance testing.	Foreground completion and quality acceptance	Measured accepted saleable output and test activity
saleable_packaging	Saleable factory-gate packaging	conditional	Include when corrugated board boxes cross the factory gate with the reference product and are not returnable assets excluded from the declared market state.	Foreground packaging	Packaging mass issued to accepted product

Process: Component fabrication and finishing (component_fabrication_and_finishing)

Inputs

Product flows

Copper conductor feedstock (copper_wire)

Record copper wire only when it is physically incorporated or processed in the declared part route.

• Selected flow: copper wire da2d966d-fe62-44dc-ba0f-b1cd7c7cf33e
• Flow property / unit: Mass / kg
• Amount rule: measured net copper-wire withdrawal attributable to accepted output and associated rejects
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_and_packaging_records
• Sources: ec-product-environmental-footprint-method-2021

Low-carbon steel sheet (low_carbon_steel_sheet)

Record the declared low-carbon steel sheet grade when it is stamped, formed, or machined for the part; do not substitute an alloy, stainless, coated-corrugated, plate, or rod UUID.

• Selected flow: Low-carbon steel sheet (Tiangong UUID unresolved)
• Flow property / unit: Mass / kg
• Amount rule: measured net low-carbon steel-sheet withdrawal attributable to accepted output and associated rejects
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_and_packaging_records
• Sources: ec-product-environmental-footprint-method-2021

Polypropylene molding feedstock (polypropylene_granulate)

Record polypropylene granulate only for routes that mold or otherwise incorporate PP; declare grade, additives, and recycled content.

• Selected flow: polypropylene granulate (PP) 4f19f11d-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Mass / kg
• Amount rule: measured PP granulate withdrawal attributable to accepted output and associated rejects
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_and_packaging_records
• Sources: ec-product-environmental-footprint-method-2021

Epoxy bonding or encapsulation resin (epoxy_resin)

Record epoxy resin only when the declared assembly, coating, potting, or encapsulation route consumes it; separately disclose curing agent and solvent exchanges as additional atomic rows when used.

• Selected flow: Epoxy resin e2bab6ae-d42f-4fca-bab5-ae9c6692f105
• Flow property / unit: Mass / kg
• Amount rule: measured mixed or issued epoxy-resin mass attributable to accepted output and rejects, excluding separately recorded curing agents or solvents
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_and_packaging_records
• Sources: ec-product-environmental-footprint-method-2021

Fabrication electricity (fabrication_electricity)

Record purchased electricity metered or causally allocated to forming, machining, molding, cleaning, finishing, curing, and associated controls.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: metered fabrication and finishing electricity attributable to the declared part route
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_records
• Sources: ec-product-environmental-footprint-method-2021

Process water (process_water)

Record supplied process water only when it crosses the boundary for cleaning, rinsing, cooling, or bath make-up; do not combine it with wastewater.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: measured process-water input attributable to the declared part route
• Value mode: Foreground record (foreground_record)
• Specificity: Route-specific (route_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_and_chemical_records
• Sources: ifc-metal-plastic-rubber-ehs-2007

Sodium hydroxide cleaning chemical (sodium_hydroxide)

Record sodium hydroxide only when an alkaline cleaning, etching, or finishing bath consumes it; state supplied concentration and convert solution mass to NaOH product mass consistently.

• Selected flow: Sodium hydroxide e0abcced-0611-4c24-9290-5a2c5a0c4169
• Flow property / unit: Mass / kg
• Amount rule: measured purchased sodium hydroxide product mass consumed by the declared route
• Value mode: Foreground record (foreground_record)
• Specificity: Route-specific (route_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_and_chemical_records
• Sources: ifc-metal-plastic-rubber-ehs-2007

Natural gas for process heat (natural_gas)

Record gaseous natural gas only when it is combusted on site for ovens, curing, drying, or heat treatment attributable to the declared route.

• Selected flow: natural gas in the gaseous state 4f19ca0e-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Volume / m3
• Amount rule: metered natural-gas volume combusted for the declared route at documented reference conditions
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fuel_records
• Sources: ipcc-stationary-combustion-2006

Outputs

Waste flows

Post-industrial steel fabrication scrap (post_industrial_steel_scrap)

Record segregated post-industrial steel offcuts and rejected steel pieces leaving the process; internal closed-loop return before crossing the boundary is tracked separately and is not double-counted.

• Selected flow: Post-industrial steel scrap c143745d-be4f-4d8f-b403-2dcbfe685349
• Flow property / unit: Mass / kg
• Amount rule: measured steel scrap crossing the foreground boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste_records
• Sources: ifc-metal-plastic-rubber-ehs-2007

Copper fabrication scrap (copper_scrap)

Record segregated copper offcuts, wire ends, and rejected copper pieces leaving the process; declare contamination and treatment route.

• Selected flow: Copper Scrap 4fbbb5f1-560a-4052-ba0c-652c5dfc282e
• Flow property / unit: Mass / kg
• Amount rule: measured copper scrap crossing the foreground boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste_records
• Sources: ifc-metal-plastic-rubber-ehs-2007

Polypropylene molding waste (polypropylene_waste)

Record PP sprues, purge, flash, and rejected molded PP that leave the process; internal regrind returned to molding is tracked in the material balance and not counted as an external waste output.

• Selected flow: Polypropylene Wastes 88215d1b-e6b6-4ec7-af7f-83375e80637b
• Flow property / unit: Mass / kg
• Amount rule: measured polypropylene waste crossing the foreground boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste_records
• Sources: ifc-metal-plastic-rubber-ehs-2007

Metal-fabrication and finishing wastewater (metal_finishing_wastewater)

Record wastewater from the declared cleaning, rinsing, cutting-fluid, blasting, deburring, or surface-finishing route as one route-specific aqueous waste stream; disclose treatment state and key contaminants.

• Selected flow: Metal-fabrication and finishing wastewater (Tiangong UUID unresolved)
• Flow property / unit: Mass / kg
• Amount rule: measured wastewater mass leaving the declared foreground route before external treatment
• Value mode: Foreground record (foreground_record)
• Specificity: Route-specific (route_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_wastewater_records
• Sources: ifc-metal-plastic-rubber-ehs-2007

Elementary flows

Direct fossil carbon dioxide from natural-gas combustion (fossil_carbon_dioxide)

Record only direct on-site fossil CO2 from natural gas assigned to the declared process heat; upstream electricity and fuel-supply emissions remain in background datasets.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: calculated from recorded natural-gas consumption and the documented geography-, fuel-, and technology-applicable emission factor
• Value mode: Calculated value (calculated_value)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_fuel_records
• Sources: ipcc-stationary-combustion-2006

Process: Part assembly and outgoing testing (part_assembly_and_testing)

Inputs

Product flows

Assembly and test electricity (assembly_test_electricity)

Record purchased electricity for assembly equipment, curing not already metered under fabrication, inspection, and electrical or functional testing.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: metered assembly and outgoing-test electricity attributable to accepted output and rejects
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_records
• Sources: ec-product-environmental-footprint-method-2021

Outputs

Product flows

Accepted reference product (reference_product)

Record only parts that meet the declared drawing, electrical or functional requirements, and outgoing acceptance criteria. Rejected parts are assigned to their constituent waste rows or an additional atomic waste row.

• Selected flow: Separately supplied CPC 46960 electrical machinery or apparatus part (Tiangong UUID unresolved)
• Flow property / unit: Mass / kg
• Amount rule: exactly 1 kg of measured accepted saleable output
• Value mode: Fixed value (fixed_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Method formula (method_formula)
• Sources: ec-product-environmental-footprint-method-2021

Process: Saleable factory-gate packaging (saleable_packaging)

Inputs

Product flows

Corrugated board boxes (corrugated_board_boxes)

Record corrugated board boxes only when they leave the factory with the reference product; exclude returnable boxes retained as facility assets and add separate atomic rows for other packaging components.

• Selected flow: corrugated board boxes 4f197bec-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Mass / kg
• Amount rule: measured corrugated-box mass issued to accepted saleable output
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_and_packaging_records
• Sources: ec-product-environmental-footprint-method-2021

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_subdivide_first	Shared processes and equipment	Avoid allocation by subdividing production steps and using product-specific meters, issue records, machine time, test cycles, and waste records wherever technically feasible.	ec-product-environmental-footprint-method-2021
allocation_physical_relation	Residual shared burdens	When subdivision is infeasible, allocate by a documented physical causal relation such as machine time, energy demand, processed mass, or test duration; use simple mass share only when it reasonably represents the burden driver.	ec-product-environmental-footprint-method-2021
allocation_scrap_boundary	Scrap and internal recycling	Report scrap crossing the foreground boundary with its actual treatment route. Track internal regrind or remelt loops in the mass balance and do not claim an avoided burden unless a separately declared downstream method requires and documents it.	ec-product-environmental-footprint-method-2021
allocation_rejects	Rejected parts	Assign material, energy, water, and treatment burdens of rejected production to the accepted reference product unless the rejected material becomes a documented co-product with a separately justified function and allocation method.	ec-product-environmental-footprint-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_and_packaging_records	component_fabrication_and_finishing; saleable_packaging	Copper wire, steel sheet, PP granulate, epoxy resin, and corrugated boxes	Purchase, warehouse issue, return, and stock records	material identity; grade; supplier; lot; opening stock; receipts; issues; returns; closing stock; recycled content	Reconcile product-specific warehouse issues and stock movement to the declared route	kg	Per lot, aggregated monthly	At least 12 representative months or the full production campaign	All reporting-facility lines producing the declared part	Net consumption = opening stock + receipts - closing stock - documented returns; normalize by accepted output	Purchase documents, batch tickets, stock reconciliation, and bill of materials
cp_energy_records	component_fabrication_and_finishing; part_assembly_and_testing	Purchased electricity	Submeter, utility meter, and machine record	meter id; opening and closing readings; unit; line; operating hours; part-family output	Prefer submeters; otherwise allocate by a validated causal driver	Metered energy unit	Continuous or each shift, aggregated monthly	Same period as output records	All applicable fabrication, assembly, and test equipment	Subtract documented non-production loads and normalize attributed energy by accepted output	Meter calibration, utility invoice reconciliation, and allocation worksheet
cp_water_and_chemical_records	component_fabrication_and_finishing	Process water and sodium hydroxide	Meter, batch-make-up, purchase, and concentration records	water reading; chemical product mass; concentration; bath id; make-up; discard; route	Meter water and reconcile chemical issues to bath logs	kg; concentration fraction	Per batch or shift, aggregated monthly	Same period as output records	Each applicable cleaning or finishing line	Attribute only route-specific consumption, convert solution/product basis explicitly, and normalize by accepted output	Calibrated meters, bath logs, safety data sheet, purchase record, and reconciliation
cp_fuel_records	component_fabrication_and_finishing	Natural gas and direct fossil CO2	Fuel meter, invoice, oven log, and emission-factor record	gas volume; reference conditions; net calorific value; equipment; operating time; factor; factor geography and year	Reconcile meters to invoices and assign by measured equipment use	m3; kg CO2	Continuous or each billing period	Same period as output records	Applicable on-site ovens, dryers, and heat-treatment equipment	Attribute fuel to the route; calculate CO2 under cr_stationary_combustion_co2; normalize both by accepted output	Meter/invoice reconciliation and documented factor provenance
cp_waste_records	component_fabrication_and_finishing	Steel scrap, copper scrap, and polypropylene waste	Container weight, transfer, and treatment records	waste identity; tare; gross; net mass; contamination; internal return; destination; treatment	Weigh each segregated stream and reconcile transfers	kg	Each shipment or batch, aggregated monthly	Same period as output records	All route-attributable waste collection points	Count only waste crossing the boundary; normalize by accepted output	Calibrated scale tickets, transfer notes, and internal-reuse ledger
cp_wastewater_records	component_fabrication_and_finishing	Metal-fabrication and finishing wastewater	Flowmeter, tank, batch discharge, and analysis records	volume or mass; density; route; treatment state; discharge time; key contaminants	Meter continuous discharge or measure each batch; retain representative analysis	kg	Continuous or each discharge, aggregated monthly	Same period as output records	Each applicable cleaning and finishing line	Convert volume with documented density where needed and normalize pre-external-treatment mass by accepted output	Meter calibration, discharge log, laboratory report, and treatment record
cp_saleable_output_records	part_assembly_and_testing	Accepted reference product and rejects	Production, scale, inspection, and test records	model; lot; produced count; accepted count; rejected count; net mass; test result; disposition	Weigh accepted output and reconcile with inspection and test disposition	kg	Each lot, aggregated monthly	Same period as all input records	All reporting-facility lines producing the declared part	Sum accepted net mass only; reconcile rejects to waste or rework records	Scale calibration, production order, inspection report, and test record

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
cr_normalize_reference	Every inventory row	Normalized amount = route-attributed row amount / accepted reference-product mass.	Row amount; accepted mass from cp_saleable_output_records	Amount per 1 kg accepted reference product	ec-product-environmental-footprint-method-2021
cr_net_material_use	Material and packaging inputs	Net use = opening stock + receipts - closing stock - documented returns; reconcile the result to product, waste, emissions, and stock change.	Stock and issue fields from cp_material_and_packaging_records	Net input mass	ec-product-environmental-footprint-method-2021
cr_stationary_combustion_co2	fossil_carbon_dioxide	Direct CO2 = attributed fuel consumption × compatible documented CO2 emission factor; convert volume to energy only with recorded net calorific value and reference conditions.	Natural-gas consumption; net calorific value if needed; applicable CO2 factor	kg fossil CO2	ipcc-stationary-combustion-2006
cr_mass_balance	Fabrication and assembly	For each principal material, reconcile input = accepted product content + external waste + documented emissions + closing work-in-process - opening work-in-process; investigate unexplained imbalance.	Material records; accepted output; scrap; emissions; work-in-process	Material-specific balance and unexplained difference	ec-product-environmental-footprint-method-2021

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_product_identity	Reference product	Identify one part family, model or drawing, host-apparatus application, material specification, rating, test criteria, route, and market state.	Drawing, bill of materials, specification, inspection record, and dataset metadata
dq_primary_data	Foreground manufacturing	Use product- or route-specific primary data for the bill of materials and manufacturing activity; document every allocation from shared facility totals.	Meters, issue records, production orders, allocation worksheet, and responsible-person approval
dq_temporal_alignment	All foreground rows	Use the same representative period for inputs, outputs, wastes, and accepted production, normally at least 12 months or the full campaign; explain shutdowns and abnormal batches.	Period reconciliation and production calendar
dq_completeness	Inventory	Reconcile the full bill of materials and add one atomic row for every other actual material, component, chemical, packaging item, waste, or direct elementary flow not represented by the common rows above.	Bill-of-material crosswalk, flow ledger, mass balance, and documented exclusions
dq_representativeness	Upstream datasets and factors	Record technological, geographical, and time representativeness and disclose every proxy, unresolved UUID, factor source, and treatment-state assumption.	Dataset metadata, source record, proxy rationale, and data-quality assessment

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validation_reference_identity	Reference flow	Fail validation if the part family, model or drawing, host application, specification, rating where applicable, route, market state, accepted output mass, or packaging state is missing.	un-cpc-3-structure-2025; un-cpc-3-explanatory-notes-2025
validation_inventory_completeness	Bill of materials and process inventory	Confirm that every actual bill-of-material, energy, water, chemical, packaging, waste, and direct-emission exchange has one atomic row and that exclusions are justified.	ec-product-environmental-footprint-method-2021
validation_route_conditions	Conditional processes and flows	Confirm each conditional row is either supported by production evidence or explicitly not applicable; do not silently omit finishing, combustion, wastewater, scrap, or packaging.	ifc-metal-plastic-rubber-ehs-2007
validation_balances	Material and activity data	Reconcile accepted output, rejects, work-in-process, principal materials, fuel, and shared-meter allocations for the same period; investigate material unexplained differences and invoice/meter gaps.	ec-product-environmental-footprint-method-2021
validation_combustion	Natural gas and direct fossil CO2	When natural gas is combusted, require a compatible emission factor, net calorific value or direct mass/volume basis, equipment assignment, and matching direct fossil-CO2 row.	ipcc-stationary-combustion-2006
validation_uuid_integrity	Tiangong identities	Use only directly audited state-100 exact UUIDs; keep reference_product, low_carbon_steel_sheet, and metal_finishing_wastewater unresolved until exact classification-, state-, property-, unit-, and bilingual-consistent records exist.

10. Published Dataset Profile

Field	Value
dataset_role	Product- and route-specific cradle-to-factory-gate inventory dataset for one separately supplied CPC 46960 electrical part
downstream_use	secondary_dataset; background_dataset
allowed_use	Modelling a declared part as an input to a host apparatus or comparing production scenarios for the same functionally and technically equivalent part under aligned boundaries
excluded_use	Representing complete apparatus; inferring distribution, use, service life, maintenance, or end-of-life; comparing unlike part families or electrical functions without a separately justified functional equivalence
required_metadata	Canonical PCR id and version when published; part family and drawing/model; host application; mass per item; material specification and bill of materials; ratings and test criteria; route; facility and supplier geography; reference period; accepted yield and rejects; allocation; upstream datasets; packaging state; unresolved identities and proxies
required_quality_disclosure	Primary-data share; meter and scale coverage; temporal, technological, and geographical representativeness; mass-balance result; allocation drivers; missing flows; data gaps; uncertainty; factor provenance; internal recycling and external waste treatment
update_trigger	Change in part design, bill of materials, supplier or recycled content, production or finishing route, test regime, facility energy or water system, allocation driver, packaging, factor, upstream dataset, or a material data-quality gap

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-3-structure-2025	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 2026-09-05)	Official CPC 46960 identity and referenced subclass titles
un-cpc-3-explanatory-notes-2025	official_guidance	United Nations Statistics Division, CPC Version 3.0 Explanatory Notes, 30 June 2025, subclass 46960, https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf (retrieved 2026-09-05)	Product-boundary identity and classification interpretation
ifc-metal-plastic-rubber-ehs-2007	official_guidance	World Bank Group / IFC, Environmental, Health, and Safety Guidelines for Metal, Plastic, and Rubber Products Manufacturing, 30 April 2007, https://www.ifc.org/content/dam/ifc/doc/2000/2007-metal-plastic-rubber-products-ehs-guidelines-en.pdf (retrieved 2026-09-05)	Material-processing scope; forming, cleaning, finishing, wastewater, scrap, and direct-emission process decomposition
ec-product-environmental-footprint-method-2021	official_guidance	European Commission Recommendation (EU) 2021/2279, Annex I, Product Environmental Footprint Method, https://environment.ec.europa.eu/system/files/2021-12/Annexes%201%20to%202.pdf (retrieved 2026-09-05)	Declared unit, product-specific bill of materials, company-specific activity data, boundary completeness, subdivision, allocation, primary-data collection, and data quality
ipcc-stationary-combustion-2006	method_factor	IPCC, 2006 Guidelines for National Greenhouse Gas Inventories, Volume 2, Chapter 2: Stationary Combustion, https://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/2_Volume2/V2_2_Ch2_Stationary_Combustion.pdf (retrieved 2026-09-05)	Direct stationary-combustion CO2 calculation from fuel consumption and compatible emission factors