Doors, windows and their frames and thresholds for doors, of iron, steel or aluminium

1. Scope and Applicability

This PCR governs cradle-to-gate foreground data packages for manufacturing finished, uninstalled doors, windows, their frames, and door thresholds whose load-bearing or framing material is iron, steel, aluminium, or their alloys. It applies to a complete product or to a separately marketed frame or threshold. The declared product may be glazed or unglazed and may include integral seals, hardware, thermal breaks, and factory-applied finishes when these are part of the delivered product configuration.

The PCR excludes wooden or plastics-framed products, curtain-wall systems, vehicle doors or windows, gates, shutters and blinds, standalone glazing, standalone hardware, installation at the building, use-stage operation and maintenance, and end-of-life. A producer shall identify the product form and material route and shall not average materially different door, window, frame-only, or threshold-only configurations unless the averaging rule and production-weighted shares are disclosed.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.fabricated-metal-products-except-machinery-and-equipment.doors-windows-and-their-frames-and-thresholds-for-doors-of-iron-steel-or-aluminium
classification_refs	CPC 3.0: 42120 (exact context reference)
covered_products	Finished iron, steel, or aluminium pedestrian doors and windows; their separately marketed frames; door thresholds; glazed or unglazed factory configurations
excluded_products	Wood- or plastics-framed products; curtain walls; vehicle closures; gates, shutters, and blinds; standalone glass or hardware; installation, use, and end-of-life services
representative_product	A factory-finished metal-framed pedestrian window or doorset, with the declared glazing, seals, hardware, and finish included in its bill of materials
production_route	Purchased metal profiles or formed sections are cut, machined, joined, optionally surface-treated, and assembled with the declared components; alternative metal and finish routes remain separately qualified
market_state	Quality-controlled, uninstalled, unpackaged finished product at the factory gate

3. Reference Flow

Field	Value
What	A finished iron-, steel-, or aluminium-framed door, window, frame, or door threshold conforming to the declared product configuration and intended use
How much	1 kg net mass of accepted factory-gate product
How well	The declared dimensions, primary metal and alloy, product form, finish, glazing, seals, hardware, thermal-break configuration, and applicable performance specification are met
How long or cycle	One production batch; no service-life duration or use-stage performance is credited in this cradle-to-gate reference flow
reference_flow_link	The reference flow is the net accepted-product mass after final inspection, excluding reusable production fixtures and transport packaging

Field	Value
Reference amount	1 kg
Reference product flow	Doors, windows and their frames and thresholds for doors, of iron, steel or aluminium 9001a0d2-880c-41ca-9e98-18d421dfc46f
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 form (door, window, frame, or threshold); primary metal and alloy/grade; net product mass; dimensions; opening type; surface finish and coating route; glazing construction and gas fill when present; seal and thermal-break materials when present; hardware included; fire/security/thermal/acoustic or other declared performance; production site and geography; reporting period; factory-gate state

When constructing a foreground data package, every item in Required qualifiers shall be declared in dataset metadata, process notes, the reference-flow comment, the product description, or an equivalent field. Missing required qualifiers make the reference flow incomplete.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass	Reference product and mass-based inventory rows	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Use net dry mass at the factory gate. Exclude reusable racks, tooling, and transport packaging from the reference amount; separately disclose any non-reusable packaging brought into scope.
electricity_energy	Purchased electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve meter data and convert kWh to MJ by multiplying by 3.6; disclose grid mix, voltage level, geography, losses, and delivery boundary.
gas_volume_conditions	Gaseous natural gas and industrial oxygen	Volume 93a60a56-a3c8-22da-a746-0800200c9a66	m3	Record metered volume and the reference temperature, pressure, and dry/wet basis; do not combine gases or convert from mass without a documented composition and density basis.
water_mass_basis	Process water and aqueous waste	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Prefer mass measurement. A volume-to-mass conversion shall use measured or supplier-declared density and the applicable temperature; retain the original meter value.
treated_area_driver	Surface finishing	Mass for inventory exchange; m2 as supporting driver	kg; m2	Record coating and chemical inputs as exchange mass and separately retain treated metal area, line, bath chemistry, coating thickness, and rework rate as process drivers.

5. System Boundary

The foreground boundary begins when purchased metal profiles or formed sections, integral components, energy carriers, and process chemicals enter the manufacturing site. It includes cutting, drilling, punching, forming, machining, joining, in-process movement, conditional surface preparation and finishing, curing or drying, glazing and hardware assembly, final inspection, rework, on-site waste segregation, and on-site treatment before wastes or emissions cross the site boundary. Upstream production of purchased inputs is represented by linked supplier-specific or appropriate background datasets. The boundary ends at the factory gate for the accepted, uninstalled, unpackaged product.

Boundary Abstraction

Field	Value
declared_starting_condition	Purchased profiles, formed sections, glazing units, seals, hardware, chemicals, and energy carriers at the manufacturing-site receiving boundary
starting_condition_role	Upstream products with separately linked supply datasets; not burden-free starting materials
product_classification_scope	Factory manufacture of finished iron-, steel-, or aluminium-framed doors, windows, frames, and door thresholds within the reviewed semantic boundary
recursive_input_rule	A purchased input already meeting this same finished-product category is recorded as an upstream product input with its own dataset and is not reopened into the present foreground manufacture
upstream_dataset_requirement	Supplier-specific datasets are preferred for metal alloy/grade, recycled content, coating state, glazing, seals, and hardware; otherwise use geographically and technologically representative datasets and disclose substitutions
disclosure	Declare product form, alloy/grade, recycled content when known, component bill of materials, finish route, treated area, glazing and hardware configuration, site, geography, reporting period, allocation, scrap destinations, wastewater treatment, and factory-gate state

rule_id	Applies to	Rule	source_ids
boundary_factory_gate	all datasets	Include all on-site manufacturing operations from receipt of purchased inputs through accepted-product inspection; exclude installation, use, and end-of-life unless a separately declared extended system is created.	epd-international-windows-doors-cpcr-2026
boundary_product_scope	product identity	Keep door, window, frame-only, and threshold-only configurations within the iron/steel/aluminium product boundary and disclose the exact represented configuration.	un-cpc-3-0-structure-2025
boundary_surface_treatment	conditional surface finishing	Include aqueous pretreatment, coating or anodizing operations, rinsing, drying/curing, wastewater treatment, sludge, and direct emissions whenever performed on site; otherwise link the purchased prefinished profile or outsourced-treatment dataset.	eu-jrc-stm-bref-2006
boundary_additional_components	product-specific bill of materials	Record every additional material or component crossing the foreground boundary as its own atomic exchange; do not substitute a collective hardware, packaging, chemical, or materials row.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
integrated_fabrication_assembly	Integrated component fabrication and final assembly	required	Always included for the declared factory-gate product	Foreground cutting, machining, joining, glazing/hardware assembly, inspection, and scrap segregation	1 kg accepted factory-gate product
surface_finishing	On-site aqueous pretreatment and coating/curing	conditional	Include only when cleaning, conversion coating, anodizing, powder coating, wet coating, galvanizing, curing, or drying occurs within the reporting site	Foreground surface preparation, finishing, and associated wastewater/waste management	1 kg accepted product and declared treated metal area

Process: Integrated component fabrication and final assembly (integrated_fabrication_assembly)

Inputs

Product flows

Aluminium extrusion profile (aluminium_extrusion_profile)

Record purchased aluminium extrusion profile only for aluminium-bearing configurations; declare alloy, temper, recycled content when known, supplier, coating state, and received mass.

• Selected flow: Aluminium extrusion profile 4f197be3-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Mass / kg
• Amount rule: Net received mass consumed in accepted product plus measured process loss
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_bom
• Sources:

Cold-formed steel profile (cold_formed_steel_profile)

Record cold-formed iron or non-alloy-steel sections only for ferrous configurations; declare grade, section geometry, coating state, supplier, and received mass.

• Selected flow: Cold-forming shapes f2eb1e33-3d42-40ef-a0da-2532cf491ddf
• Flow property / unit: Mass / kg
• Amount rule: Net received mass consumed in accepted product plus measured process loss
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_bom
• Sources:

Insulating glass unit (insulating_glass_unit)

Record one factory-made insulating glass unit when it is integrated into the declared product; specify pane build-up, coatings, spacer, gas fill, and supplier. The exact Tiangong flow UUID remains unresolved.

• Selected flow: Insulating glass unit
• Flow property / unit: Mass / kg
• Amount rule: Net installed glazing mass plus measured breakage and rejected-unit loss
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_bom
• Sources:

EPDM rubber gasket (epdm_gasket)

Record one ethylene-propylene-diene monomer rubber gasket exchange when this seal is installed; do not use the row for other elastomers. The exact Tiangong flow UUID remains unresolved.

• Selected flow: EPDM rubber gasket
• Flow property / unit: Mass / kg
• Amount rule: Net gasket mass installed plus measured cutting loss
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_bom
• Sources:

Fabrication electricity (fabrication_electricity)

Record purchased electricity used by cutting, machining, forming, joining, assembly, inspection, extraction, and allocated supporting equipment.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Sub-metered use or documented allocation from site meter records
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_gases
• Sources:

Industrial oxygen (industrial_oxygen)

Record industrial oxygen only when supplied across the site boundary for oxy-fuel cutting or another declared fabrication operation; declare purity, pressure, and reference conditions.

• Selected flow: Industrial oxygen bd4b0f96-2090-4806-a648-335ab20ff401
• Flow property / unit: Volume / m3
• Amount rule: Supplier-delivered or metered oxygen volume attributable to the represented product
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_gases
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Accepted factory-gate product (finished_metal_door_window)

Record the net mass of inspected product that meets the declared configuration and quality requirements.

• Selected flow: Doors, windows and their frames and thresholds for doors, of iron, steel or aluminium 9001a0d2-880c-41ca-9e98-18d421dfc46f
• Flow property / unit: Mass / kg
• Amount rule: 1 kg net accepted-product mass by definition of the reference flow
• Value mode: Fixed value (fixed_value)
• Specificity: Generic (generic)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Identity reference (identity_reference)
• Sources:

Waste flows

Segregated aluminium offcut scrap (aluminium_scrap)

Record aluminium offcuts and rejected aluminium components leaving the foreground as a segregated waste output; declare alloy/coating contamination and destination.

• Selected flow: Aluminium Scrap 96c5f842-ea53-419b-b1cd-c02c479efb45
• Flow property / unit: Mass / kg
• Amount rule: Weighed segregated aluminium scrap leaving the process boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_output_waste_mass
• Sources:

Segregated steel offcut scrap (steel_scrap)

Record ferrous offcuts and rejected steel components leaving the foreground as a segregated waste output; declare grade/coating contamination and destination.

• Selected flow: Steel scrap b973529f-a945-4cb9-9600-ecbcc745a4c6
• Flow property / unit: Mass / kg
• Amount rule: Weighed segregated steel scrap leaving the process boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_output_waste_mass
• Sources:

Elementary flows

Process: On-site aqueous pretreatment and coating/curing (surface_finishing)

Inputs

Product flows

Process water (process_water)

Record water delivered to on-site cleaning, bath make-up, rinsing, cooling associated with the finishing line, and wastewater treatment; exclude sanitary water.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: Metered or tank-balance process-water input attributable to the represented product
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_records
• Sources: eu-jrc-stm-bref-2006

Sodium hydroxide (sodium_hydroxide)

Record sodium hydroxide only when used in an alkaline cleaning, etching, bath-maintenance, or wastewater-treatment step; retain solution concentration and active-product conversion.

• Selected flow: Sodium hydroxide e0abcced-0611-4c24-9290-5a2c5a0c4169
• Flow property / unit: Mass / kg
• Amount rule: Active sodium-hydroxide mass from purchase, issue, concentration, and inventory-change records
• Value mode: Calculated value (calculated_value)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_finishing_chemicals
• Sources: eu-jrc-stm-bref-2006

Powder coating (powder_coating)

Record powder coating only for a declared on-site powder-coating route; specify resin system, colour, supplier, coating thickness, recovered overspray, and cure schedule.

• Selected flow: Powder Coating 6e3010f9-fbd3-48f6-95fc-c1b38d2800d2
• Flow property / unit: Mass / kg
• Amount rule: Issued powder minus returned reusable powder and closing inventory, assigned to accepted output and measured rejects
• Value mode: Calculated value (calculated_value)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_finishing_chemicals
• Sources: eu-jrc-stm-bref-2006

Finishing electricity (finishing_electricity)

Record electricity used by baths, pumps, ventilation, wastewater treatment, coating application, curing, drying, and allocated finishing-line support equipment.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Sub-metered finishing-line use or documented allocation from site meter records
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_gases
• Sources: eu-jrc-stm-bref-2006

Natural gas for curing or drying (natural_gas)

Record gaseous natural gas only when combusted on site for bath heating, curing, or drying; declare composition, supplier, reference conditions, and combustion equipment.

• Selected flow: natural gas in the gaseous state 4f19ca0e-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Volume / m3
• Amount rule: Metered or supplier-invoiced volume assigned to the finishing line
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_gases
• Sources: eu-jrc-stm-bref-2006

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Metal-hydroxide wastewater-treatment sludge (metal_hydroxide_sludge)

Record dewatered sludge generated when metal-bearing finishing wastewater is precipitated and separated; declare dry solids, principal metals, hazardous classification, and destination. The exact Tiangong flow UUID remains unresolved.

• Selected flow: Metal-hydroxide wastewater-treatment sludge
• Flow property / unit: Mass / kg
• Amount rule: Weighed wet sludge leaving the site, with dry-solids fraction retained as a quality field
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_finishing_wastes
• Sources: eu-jrc-stm-bref-2006

Metal-bearing surface-treatment rinse wastewater (metal_bearing_rinse_wastewater)

Record aqueous rinse wastewater containing metals or finishing chemicals only when it crosses the site boundary for sewer discharge or external treatment; declare pH, principal metals/ions, treatment state, and destination. The exact Tiangong flow UUID remains unresolved.

• Selected flow: Metal-bearing surface-treatment rinse wastewater
• Flow property / unit: Mass / kg
• Amount rule: Metered discharge mass or volume converted using documented density, net of separately metered non-process water
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_finishing_wastes
• Sources: eu-jrc-stm-bref-2006

Elementary flows

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

Record only direct fossil carbon dioxide emitted by on-site combustion assigned to the finishing line; upstream electricity and fuel-supply emissions remain in linked upstream datasets.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Stack measurement or fuel carbon balance calculated from metered gas and documented carbon content, oxidation, and equipment allocation
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg accepted factory-gate product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_direct_air_emissions
• Sources: eu-jrc-stm-bref-2006

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_subdivide	shared production and finishing lines	Prefer sub-metering, batch records, and physical subdivision. Do not allocate a site's unrelated production to the declared product.
allocation_shared_utilities	utilities serving multiple products	Allocate only residual shared utility use with a documented causal driver such as machine time, treated area, oven occupancy, or accepted mass; report the driver and share.
allocation_scrap	aluminium and steel scrap outputs	Record gross scrap mass and destination as waste outputs. Do not subtract an avoided-burden credit from foreground inputs; any recycling benefit or load belongs to the explicitly declared downstream model.
allocation_rework	rework and rejected products	Include rework energy and materials in the batch that generated them; return internally recycled material only once and retain a mass-balance record preventing double counting.

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_bom	integrated_fabrication_assembly	metal profiles, glazing, gaskets, and additional atomic BOM inputs	purchase receipts, issue/return records, BOM, stock counts, reject logs	material identity; supplier; alloy/composition; opening stock; receipts; issues; returns; closing stock; accepted and rejected product assignment	Reconcile purchasing and stores ledgers to product-level BOM and production orders	kg	each batch; monthly reconciliation	representative reporting period, normally at least 12 consecutive months	all lines and stores serving the declared product	(opening + receipts - returns - closing) divided by accepted reference-product mass	calibrated scales; supplier certificates; inventory reconciliation; product BOM revision
cp_energy_gases	both processes	electricity, natural gas, and industrial oxygen	sub-meters, invoices, run-time logs	meter start/end; invoice quantity; reference conditions; line; machine hours; oven occupancy; accepted output	Prefer sub-metering; reconcile to site invoice and allocate only residual shared use by a causal driver	MJ for electricity; m3 for gases	continuous or per batch; monthly reconciliation	same period as production	all meters and equipment serving the declared boundary	eligible measured quantity divided by accepted product mass	meter calibration; invoice reconciliation; allocation worksheet; grid and fuel metadata
cp_water_records	surface_finishing	process water	water sub-meter, tank make-up, discharge records	meter readings; bath additions; rinse flow; density if converted; production assignment	Sub-meter the finishing line or reconcile tank and site water balances	kg and original m3	continuous or daily; monthly reconciliation	same period as finishing production	finishing and associated on-site treatment only	net eligible water input divided by accepted product mass	meter calibration; balance closure; exclusion of sanitary water
cp_finishing_chemicals	surface_finishing	sodium hydroxide, powder coating, and each additional atomic chemical	purchase, issue/return, bath analysis, stock and recovery records	product identity; concentration; opening/closing stock; issued; returned; recovered overspray; bath additions; treated area; accepted output	Calculate active chemical or net coating consumption from auditable stock and concentration records	kg	each batch or shift; monthly reconciliation	same period as finishing production	each finishing line used by the declared product	net active input or net issued coating divided by accepted product mass	supplier SDS/TDS; concentration test; scale calibration; stock reconciliation
cp_output_waste_mass	integrated_fabrication_assembly	accepted product and segregated metal scraps	scale tickets, quality release, waste transfer records	gross/tare/net mass; alloy or grade; coating state; accepted/rejected status; destination	Weigh accepted output and each segregated scrap stream independently	kg	each batch or shipment	same period as production	all declared-product lines and waste areas	sum by stream divided by accepted product mass	calibrated scales; signed transfer notes; batch mass balance
cp_finishing_wastes	surface_finishing	metal-hydroxide sludge and metal-bearing rinse wastewater	discharge meters, laboratory results, sludge scale tickets, manifests	mass or volume; density; dry solids; pH; principal metals and ions; treatment state; destination	Meter liquid discharge and weigh sludge; sample according to site permit or operating plan	kg plus retained composition fields	each discharge or waste shipment	same period as finishing production	on-site finishing and treatment boundary	sum each chemically distinct stream divided by accepted product mass	meter/scale calibration; laboratory chain of custody; waste classification and transfer record
cp_direct_air_emissions	surface_finishing	direct fossil carbon dioxide	stack measurement or fuel carbon-balance records	gas consumption; carbon content; oxidation basis; stack result; equipment and product allocation	Use measured direct emissions or a transparent site-specific carbon balance without including upstream energy emissions	kg	per test and monthly calculation	same period as fuel use	combustion equipment within the declared site boundary	eligible direct fossil CO2 divided by accepted product mass	test report or fuel certificate; calculation sheet; meter reconciliation

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_normalize_mass	all inventory rows	normalized amount = eligible row quantity / net accepted reference-product mass	collected row quantity; accepted product mass	amount per 1 kg reference product
calc_electricity	electricity meters	electricity (MJ) = electricity (kWh) × 3.6	original kWh reading	MJ
calc_active_naoh	sodium-hydroxide solution	active NaOH mass = solution mass × measured or supplier-declared NaOH mass fraction	solution mass; concentration	kg active NaOH
calc_powder_net	powder coating	net powder input = opening stock + receipts - returns - recovered reusable powder - closing stock	stock, receipt, return, and recovery records	kg powder consumed
calc_mass_balance	each product configuration and reporting period	Compare measured material inputs with accepted product, segregated scraps, measured wastes, stock change, and documented emissions; investigate unexplained imbalance before publication	material and output records	disclosed mass-balance closure
calc_direct_co2	on-site natural-gas combustion	Use stack measurement or calculate fossil CO2 from metered fuel, documented carbon content and oxidation, excluding upstream fuel and electricity emissions	fuel and carbon records	kg fossil CO2

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	reference product	Product form, alloy/grade, dimensions, finish, glazing, seals, hardware, performance specification, and factory-gate state shall identify one reproducible configuration or a disclosed production-weighted group.	Product drawing; BOM; order code; declaration of performance or equivalent specification
dq_temporal	all foreground data	Use one consistent representative period and explain shutdowns, abnormal rework, missing months, and extrapolation.	Production calendar; meter and ledger coverage matrix
dq_completeness	material, utility, waste, and emission rows	Reconcile all meters, purchase/stock records, accepted output, rejects, scrap, wastewater, sludge, and direct emissions within the declared boundary; document genuinely absent conditional rows as not applicable.	Completeness checklist and mass/energy reconciliations
dq_supplier	upstream inputs	Retain supplier, geography, technology, recycled content when known, and product state for each linked upstream dataset; document any proxy.	Supplier certificate, invoice, and dataset-selection record
dq_measurement	measured quantities	Use calibrated or legally controlled meters and scales where applicable; retain units, reference conditions, conversion inputs, and uncertainty or resolution.	Calibration certificate; raw reading; conversion worksheet
dq_unresolved_uuid	unresolved flow identities	Keep the four UUID-empty rows semantically specific and prevent proxy UUID assignment until an exact public state-100 identity is directly audited.	UUID review record and unresolved manifest entry

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validation_reference	reference flow	Confirm that the quantitative reference is exactly 1 kg net accepted product and that the selected product UUID, mass property, unit group, and factory-gate state agree.
validation_configuration	product identity	Reject a dataset missing product form, alloy/grade, dimensions, surface finish, glazing/seal/hardware configuration, intended performance specification, site, geography, or reporting period.	epd-international-windows-doors-cpcr-2026
validation_boundary	system boundary	Confirm inclusion of all on-site fabrication, assembly, finishing, rework, waste treatment, and direct-emission operations that occurred; confirm that excluded life-cycle stages are not silently included.	eu-jrc-stm-bref-2006
validation_atomicity	inventory	Reject collective rows for metals, components, utilities, fuels, chemicals, packaging, wastes, wastewater, or emissions; each exchange shall have one concrete identity and one property/unit.
validation_conditional	conditional rows	For every conditional row, require measured/calculated data when the route applies and a documented not-applicable statement when it does not.
validation_mass_balance	production period	Require an investigated material balance linking received inputs, stock change, accepted output, rework, scrap, sludge, wastewater solids, and other losses; do not accept unexplained double counting or recycling credit.
validation_uuid	UUID-bearing rows	Confirm every selected UUID by public state-code-100 identity, compatible flow type, classification, property, unit group, product state, geography/technology qualifiers, and general comment; keep unresolved rows blank.
validation_ranges	QA ranges	Do not infer an external range from one source or incompatible cases. Until two independent, boundary-compatible original sources exist, require foreground collection and retain the manifest range-evidence need.

10. Published Dataset Profile

Field	Value
dataset_role	Product-specific or production-weighted secondary_dataset/background_dataset for the declared factory-gate configuration
downstream_use	Foreground process and lifecyclemodel construction for building-product manufacture where the exact material, configuration, geography, technology, and factory-gate boundary are compatible
allowed_use	Cradle-to-gate comparison or downstream modelling after checking alloy/grade, recycled content, dimensions, finish route, glazing/hardware composition, performance declaration, site, geography, period, and allocation
excluded_use	Installed door/window service, use-stage energy performance, maintenance, replacement, end-of-life, curtain-wall systems, vehicle closures, or another material/configuration without explicit extension
required_metadata	PCR id and version; product UUID; product form; product code; alloy/grade and recycled content when known; net mass and dimensions; finish and treated area; glazing, seals, thermal breaks, and hardware; performance specification; site and geography; reporting period; allocation; upstream datasets; unresolved UUIDs
required_quality_disclosure	Data coverage and completeness; meter and scale quality; supplier representativeness; mass-balance closure; rework and rejects; scrap destinations; wastewater/sludge composition and treatment; direct-emission method; all proxies and exclusions
update_trigger	Change in alloy/grade or recycled content, BOM or product form, glazing/thermal-break/hardware system, finish route, supplier geography or technology, factory/site, energy mix, waste treatment, allocation, performance specification, or reporting period

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-3-0-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 42120 product identity and iron/steel/aluminium material scope
epd-international-windows-doors-cpcr-2026	official_guidance	EPD International, Windows and doors (EN 17213), c-PCR 2019:14-c-PCR-007, version 1.0.1, https://www.environdec.com/pcr-library/pcr2019-14-c-pcr-007 (retrieved 2026-09-05)	Windows-and-doors construction-product EPD context and configuration disclosure
eu-jrc-stm-bref-2006	official_guidance	European Commission Joint Research Centre, Reference Document on Best Available Techniques for the Surface Treatment of Metals and Plastics, August 2006, https://bureau-industrial-transformation.jrc.ec.europa.eu/sites/default/files/2019-11/stm_bref_0806.pdf (retrieved 2026-09-05)	Conditional surface-treatment decomposition and collection of water, energy, chemicals, wastewater, sludge, and direct emissions
china-nbs-metal-doors-windows-2017	official_guidance	National Bureau of Statistics of China, 2017 National Economic Industry Classification Notes, metal door and window manufacturing, https://www.stats.gov.cn/xxgk/tjbz/gjtjbz/202008/P020200811608157848094.pdf (retrieved 2026-09-05)	Professional Chinese terminology and building-use metal-door/window interpretation