Calandering or other rolling machines, except for metals or glass

1. Scope and Applicability

This PCR covers the manufacture and factory preparation of complete calendering, calandering, or other rolling machines that transform or finish paper, textiles, leather, rubber, plastics, or other non-metallic and non-glass sheet or web materials by passage between rollers. It covers mechanically complete machines, including their drive, roll assembly, controls, initial lubricant fill, factory acceptance testing, and delivery packaging.

Machines whose intended processing function is rolling metals or glass are excluded. Stand-alone cylinders, rolls, spare parts, foundations, installation at the customer site, distribution after the factory gate, use-stage electricity and consumables, maintenance, refurbishment, and end-of-life treatment are outside the declared cradle-to-factory-gate result. If a study extends the boundary, those stages shall be reported separately.

The category has a material methodology need because the product is a configurable capital good whose frame-supply route, roll construction, drive rating, controls, and factory testing materially affect its bill of materials and manufacturing energy. These variables are handled as declared qualifiers and mutually exclusive route conditions, not as separate canonical PCR identities.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.general-purpose-machinery.calandering-or-other-rolling-machines-except-for-metals-or-glass
classification_refs	CPC 3.0: 43933 (exact classification context)
covered_products	Complete calendering, calandering, embossing, smoothing, laminating, compacting, or other roller-processing machines for non-metallic and non-glass sheet or web materials
excluded_products	Metal-rolling machines; glass-rolling machines; stand-alone cylinders or rolls; parts and accessories supplied separately; customer-site installation; machines whose principal function belongs to another specific machinery category
representative_product	Electrically driven multi-roll industrial calender with a fabricated frame, calender roll assembly, drive motor, electronic control unit, initial lubricant fill, factory acceptance test, and transport packaging
production_route	Purchased-component assembly with either in-house steel-plate fabrication or a purchased coated machine structure; mechanical/electrical integration; factory testing; packaging
market_state	New, complete, factory-tested, ready-for-delivery machine at the manufacturer's factory gate

3. Reference Flow

Field	Value
What	Manufacture and factory provision of a complete roller-processing machine for non-metallic and non-glass sheet or web materials
How much	1,000 kg net machine mass, excluding delivery packaging
How well	Meets the declared purchase specification and factory acceptance criteria for processed material, working width, roll count and material, roll diameter and finish, line force, speed, temperature-control capability, installed power, control architecture, guarding, and accessories
How long or cycle	One factory production and delivery-preparation cycle; use-stage service life is not included
reference_flow_link	reference_machine

Field	Value
Reference amount	1,000 kg net machine mass
Reference product flow	Calendering or other rolling machine, except for metals or glass (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	processed material family; machine configuration and trade name; factory location and reporting period; net machine mass; working width; roll count, material, diameter and surface finish; line force; speed range; roll-temperature-control capability; installed power; motor rating and efficiency class; control architecture and voltage; frame-supply route; included accessories; packaging mass and material; factory acceptance test boundary

When constructing a foreground data package, every required qualifier shall be declared in dataset metadata, process notes, reference-flow comments, the product description, or an equivalent data-package field. The 1,000 kg reference amount is a normalization identity; the actual machine mass and number of machines represented shall also be disclosed.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass	Reference machine and all mass-normalized material and waste rows	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Record net machine mass after factory acceptance and before delivery packaging; normalize all amounts by multiplying the batch amount by 1,000 kg divided by total accepted net machine mass.
packaging_separation	Delivery packaging	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Measure packaging separately from net machine mass; include packaging production in the cradle-to-gate inventory but do not add it to the reference amount.
electricity_conversion	Purchased electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve metered kWh in source records and convert to MJ with 1 kWh = 3.6 MJ only in the normalized inventory; disclose grid geography, voltage level, supplier product, and treatment of losses.
route_exclusivity	Steel plate and purchased coated machine structure	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Declare whether the reporting facility fabricates the principal frame from steel plate or receives a coated machine structure; do not count both routes for the same frame mass.

5. System Boundary

rule_id	Applies to	Rule	source_ids
boundary_cradle_to_factory_gate	Product system	Include upstream production and inbound transport of all reported materials, components, electricity, lubricants, and packaging; include in-house fabrication when performed, assembly, electrical integration, initial filling, factory acceptance testing, preparation, and management of manufacturing waste through the selected treatment input. Exclude customer-site installation, use, maintenance, and end of life unless separately reported.	epd-international-machine-tools-pcr-2012-02-v4
boundary_route_disclosure	Frame supply	Apply either the in-house steel-plate fabrication route or the purchased coated-structure route to the same principal frame. Disclose mixed sourcing and allocate only the measured mass share to each route.	epd-international-machine-tools-pcr-2012-02-v4
boundary_capital_goods	Manufacturing equipment and buildings	Exclude ordinary production capital goods and factory infrastructure from the foreground inventory unless the study goal explicitly includes them; any inclusion shall be disclosed separately and shall not change the product reference flow.

Boundary Abstraction

Field	Value
declared_starting_condition	Purchased materials and components at the point they enter the manufacturer-controlled supply chain or reporting facility
starting_condition_role	Upstream product inputs with supplier-specific or representative production datasets, followed by manufacturer-controlled core processes
product_classification_scope	Complete machines within the semantic boundary above; CPC 3.0 code 43933 is classification context and does not define a separate identity by itself
recursive_input_rule	A complete same-category machine used only as manufacturing equipment is capital equipment and is not recursively inventoried as a product input; a same-category machine purchased for resale shall be disclosed and excluded from the manufactured output quantity
upstream_dataset_requirement	Use supplier-specific datasets for principal structures, roll assemblies, motors, controls, lubricants, and packaging when available; otherwise use geographically and technologically representative background datasets and disclose substitutions
disclosure	Report frame route, component supplier geography, recycled-content claims, electricity product and geography, allocation basis, excluded accessories, packaging composition, and all departures from this boundary

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
frame_fabrication	Principal frame fabrication	conditional	Include only when steel plate is cut, machined, formed, welded, or finished under the reporting manufacturer's control; exclude the purchased coated-structure mass represented in machine_assembly_test.	Foreground component fabrication	Net mass of accepted fabricated frame parts attributable to the reference machine
machine_assembly_test	Mechanical/electrical assembly and factory acceptance testing	required	Always include for a complete manufactured machine.	Foreground assembly, filling, integration, and testing	1,000 kg accepted net machine mass
delivery_packaging	Delivery packaging preparation	required	Include packaging applied before the product leaves the factory gate.	Foreground delivery preparation	Packaging applied to 1,000 kg accepted net machine mass

Process: Principal frame fabrication (frame_fabrication)

Inputs

Product flows

Alloy steel plate for an in-house fabricated frame (steel_plate)

Record alloy steel plate crossing into manufacturer-controlled frame fabrication. Apply only to the in-house fabrication route and retain grade, thickness, surface state, recycled-content claim, supplier, and origin.

• Selected flow: Steel Plate 421db3a5-394d-410b-8ebf-af23a37fc878
• Flow property / unit: Mass / kg
• Amount rule: measured net steel-plate receipts issued to accepted frame work orders, less documented returns to stock
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_bom
• Sources:

Electricity for frame fabrication (fabrication_electricity)

Record purchased electrical energy consumed by cutting, forming, machining, welding, finishing, extraction, and directly supporting frame-fabrication equipment when the process is in scope.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: submetered electricity or allocated meter difference for accepted frame work orders
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_factory_electricity
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Segregated low-alloy steel fabrication scrap (low_alloy_steel_scrap)

Record low-alloy steel offcuts and chips leaving the reporting facility as waste. Keep alloy grade, contamination state, mass, and treatment destination with the foreground record.

• Selected flow: Low-alloy steel scrap afedcccd-b9f3-4941-8ba4-d3135b8abb67
• Flow property / unit: Mass / kg
• Amount rule: measured outbound mass attributable to accepted frame work orders
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_fabrication_scrap
• Sources:

Elementary flows

Process: Mechanical/electrical assembly and factory acceptance testing (machine_assembly_test)

Inputs

Product flows

Purchased coated principal machine structure (purchased_coated_machine_structure)

Record a purchased coated and painted principal structure only for the externally fabricated frame route. The supplier boundary shall include fabrication and coating; do not combine this amount with the same frame mass under steel_plate.

• Selected flow: Coated and painted machine structures and components b9bcd4e3-4971-448a-9077-1bc397c7c591
• Flow property / unit: Mass / kg
• Amount rule: measured accepted supplier-delivery mass installed in the reference machine
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_bom
• Sources:

Calender roll assembly (calender_roll_assembly)

Record the complete installed roll assembly as one purchased or internally transferred component. Its roll count, shell and core materials, surface treatment, dimensions, mass, supplier, and included bearings shall be declared; the Tiangong UUID remains unresolved.

• Selected flow: Calender roll assembly (UUID unresolved)
• Flow property / unit: Mass / kg
• Amount rule: measured accepted installed mass from the machine bill of materials
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_bom
• Sources:

Principal electric drive motor (electric_motor)

Record the installed principal industrial AC drive motor. Declare rated output, voltage, efficiency class, mass, supplier, and whether auxiliary motors are included in this row.

• Selected flow: Electric motor 014f80a3-c257-425b-9b75-3e5a18573695
• Flow property / unit: Mass / kg
• Amount rule: measured accepted installed mass from the machine bill of materials
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_bom
• Sources:

Electronic machine control unit (electronic_control_unit)

Record the installed electronic control unit as supplied. Declare control architecture, rated voltage, mass, supplier, and the boundary between the unit and separately inventoried drives or motors.

• Selected flow: Electronic control unit ff5a65c8-7726-48b4-b794-6bacd21ab77e
• Flow property / unit: Mass / kg
• Amount rule: measured accepted installed mass from the machine bill of materials
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_bom
• Sources:

Initial machinery lubricating-oil fill (lubricating_oil)

Record finished lubricating oil placed in the delivered machine before acceptance. Declare lubricant grade, viscosity, supplier, density used for any volume-to-mass conversion, and whether test oil remains in the product.

• Selected flow: lubricating oil aec6f1a5-7b09-4704-870d-434d3ada0edd
• Flow property / unit: Mass / kg
• Amount rule: measured lubricant mass retained in the accepted machine
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_component_bom
• Sources:

Electricity for assembly and factory acceptance testing (assembly_test_electricity)

Record purchased electricity consumed by assembly tools, handling, controls commissioning, no-load and loaded acceptance tests, and directly supporting equipment. Exclude customer use-stage electricity.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: submetered electricity or allocated meter difference for accepted machine work orders and tests
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_factory_electricity
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Delivery packaging preparation (delivery_packaging)

Inputs

Product flows

Softwood lumber used in the delivery skid or crate (softwood_packaging_lumber)

Record only sawn softwood incorporated into the delivery skid, blocking, or crate. Moisture content, treatment, wood species group, mass, and reusable-packaging status shall be declared; the Tiangong UUID remains unresolved.

• Selected flow: Sawn softwood packaging lumber (UUID unresolved)
• Flow property / unit: Mass / kg
• Amount rule: measured dry-basis-equivalent mass applied to accepted machines
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg accepted net machine mass
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_bom
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Ready-for-delivery calendering or rolling machine (reference_machine)

Record the accepted net mass of the complete machine after factory testing and before packaging mass is added. The machine product-flow UUID remains unresolved; do not substitute a glass product or a metal/glass rolling machine.

• Selected flow: Calendering or other rolling machine, except for metals or glass (UUID unresolved)
• Flow property / unit: Mass / kg
• Amount rule: fixed reference output of 1,000 kg accepted net machine mass
• Value mode: Fixed value (fixed_value)
• Specificity: Generic (generic)
• Normalization basis: PCR reference flow
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Source rule (source_rule)
• Collection protocol: cp_product_mass_acceptance
• Sources: un-cpc-3-0-structure-2025

Waste flows

Elementary flows

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_avoidance	Shared manufacturing processes	Avoid allocation by submetering, work-order material issue, direct labour or machine-time records, and separate waste weighing for the reference machine.	epd-international-machine-tools-pcr-2012-02-v4
allocation_physical	Residual shared burdens	When subdivision is not practicable, allocate fabrication electricity by measured machine-hours or equipment energy drivers, coating burdens by coated area, assembly burdens by recorded labour or station time, and handling burdens by handled mass; disclose the selected causal relationship.	epd-international-machine-tools-pcr-2012-02-v4
allocation_economic_fallback	Non-causal residual burdens	Use economic allocation only when no defensible physical relationship exists; report the value basis, reference period, affected share, and a sensitivity result.	epd-international-machine-tools-pcr-2012-02-v4
waste_burden	Manufacturing waste	Assign collection and treatment burdens to the product system until the selected waste flow reaches its documented end-of-waste point; do not credit recycling without a separately declared method.	epd-international-machine-tools-pcr-2012-02-v4

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_component_bom	frame_fabrication; machine_assembly_test	Installed material and component inputs	ERP receipt, approved bill of materials, issue/return record, supplier mass declaration, and acceptance record	work_order; part_id; supplier; material_or_component; grade_or_model; gross_mass; returned_mass; installed_mass; geography; acceptance_status	Reconcile accepted BOM quantities to weighed or supplier-declared masses and subtract documented returns	kg	Each accepted machine or homogeneous production batch	Complete reporting period, normally at least 12 consecutive months or all units in a shorter disclosed campaign	All manufacturer-controlled sites producing the declared machines	Sum accepted installed masses by row and divide by accepted net machine mass, then multiply by 1,000 kg	Approved BOM revision, receiving record, scale calibration or supplier declaration, and work-order reconciliation
cp_factory_electricity	frame_fabrication; machine_assembly_test	Purchased electricity	Revenue meter, submeter, test log, and production work-order record	meter_id; opening_reading; closing_reading; test_kWh; operating_hours; work_order; accepted_mass; grid_geography; voltage; supplier_product; losses_boundary	Prefer dedicated submeters; otherwise subtract excluded loads and allocate the remaining meter difference using documented equipment power-hours	kWh	Per work order or test, aggregated monthly	Same period as accepted production; disclose shutdowns and abnormal tests	All reporting-facility meters serving included processes	Convert kWh to MJ and normalize to 1,000 kg accepted net machine mass under calc_allocate_shared_electricity	Meter calibration or utility invoice, allocation workbook, test record, and meter-boundary diagram
cp_fabrication_scrap	frame_fabrication	Low-alloy steel scrap output	Waste scale ticket, scrap-bin log, material issue record, and treatment receipt	alloy_grade; work_order; gross_bin_mass; tare_mass; contamination; destination; treatment; accepted_frame_mass	Weigh segregated low-alloy scrap and reconcile it to steel issued and accepted frame mass	kg	Each shipment with work-order attribution; aggregate monthly	Same period as in-house frame fabrication	Reporting-facility fabrication area and outbound waste boundary	Sum attributable net scrap mass and normalize to 1,000 kg accepted net machine mass	Calibrated scale ticket, segregation inspection, mass-balance reconciliation, and treatment receipt
cp_packaging_bom	delivery_packaging	Softwood packaging input	Packaging BOM, purchase record, moisture measurement, and packing checklist	work_order; wood_type; treatment; wet_mass; moisture_content; dry_basis_mass; reusable_status; accepted_machine_mass	Weigh lumber or reconcile piece dimensions and density, then convert to the declared mass basis	kg	Each packed machine	Complete reporting period	Final packing area	Sum packaging lumber applied to accepted machines and normalize to 1,000 kg accepted net machine mass	Packing checklist, scale or dimensional record, moisture record, and purchase specification
cp_product_mass_acceptance	delivery_packaging	Reference machine output	Final acceptance certificate, calibrated scale or reconciled engineering mass statement, and serial-number register	serial_number; configuration; net_machine_mass; packaging_mass; acceptance_date; accepted_status	Determine net accepted machine mass separately from packaging and rejected or reworked units	kg	Each accepted machine	Complete reporting period	Factory-gate output boundary	Sum accepted net machine mass; all reported flows are normalized to exactly 1,000 kg	Acceptance certificate, serial-number register, weighing evidence, and packaging subtraction record

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_mass_normalization	All inventory rows	normalized amount = attributable batch amount × 1,000 kg / accepted net machine mass represented by the batch	attributable row amount; accepted net machine mass	Row amount per 1,000 kg reference machine
calc_allocate_shared_electricity	fabrication_electricity; assembly_test_electricity	included kWh = submetered kWh, or facility meter difference minus documented excluded loads multiplied by the causal equipment power-hour share; normalized MJ = included kWh × 3.6 × 1,000 / accepted net machine mass	meter readings; excluded loads; equipment power and time; accepted net machine mass	MJ per 1,000 kg reference machine
calc_scrap_reconciliation	low_alloy_steel_scrap	attributable scrap = weighed segregated low-alloy scrap reconciled to issued steel minus returned stock and accepted incorporated steel	issued steel; returned stock; accepted incorporated steel; weighed scrap	kg low-alloy steel scrap per 1,000 kg reference machine

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	Reference machine and components	Match serial number, configuration, BOM revision, supplier model, and all required qualifiers to the accepted product; do not mix metal/glass rolling machinery or separate parts into the output.	Acceptance certificate, serial register, approved BOM, purchase specification, and supplier records
dq_measurement	Mass and electricity	Use calibrated instruments or auditable supplier declarations; retain raw units, conversion factors, meter boundaries, tare corrections, and packaging subtraction.	Calibration certificates, invoices, scale tickets, meter diagrams, and calculation workbook
dq_temporal	Foreground activity data	Use a period representative of current production, normally at least 12 consecutive months; a shorter campaign shall include all accepted units and disclose why it is representative.	Dated production register, meter series, and completeness check
dq_completeness	Product mass and included processes	Reconcile BOM mass, installed components, initial lubricant, packaging, fabrication scrap, and accepted output; explain every excluded material or activity and quantify its known mass share.	Mass-balance worksheet, exclusion register, and reviewer sign-off
dq_background	Upstream datasets	Select datasets consistent with supplier geography, production technology, alloy or component state, electricity product, and reference year; disclose proxies and their contribution.	Dataset mapping table and representativeness assessment
dq_primary_data	Core processes	Use site-specific data for manufacturer-controlled fabrication, assembly, testing, packaging, and waste management.	Work orders, BOM records, meter data, packaging records, and waste tickets

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_identity	Product identity	Reject a data package that lacks the processed-material family, machine configuration, net mass, roll specification, installed power, control architecture, frame route, factory location, reporting period, and acceptance boundary.	un-cpc-3-0-structure-2025
validate_reference	Reference flow	Require exactly 1,000 kg accepted net machine mass after normalization, with packaging mass excluded from the reference amount and reported separately.
validate_route	Frame supply	Reject double counting of the same principal frame mass under both steel_plate and purchased_coated_machine_structure; mixed sourcing requires measured mass shares.
validate_energy	Electricity	Require raw kWh, the 3.6 MJ/kWh conversion, grid geography, voltage, supplier product, allocation basis, and treatment of losses; exclude use-stage electricity.	epd-international-machine-tools-pcr-2012-02-v4
validate_mass_balance	Materials and waste	Reconcile accepted product mass with installed BOM mass and explain differences, including removed machining mass, consumables, packaging, waste, returned stock, and measurement uncertainty.
validate_uuid_gaps	Unresolved identities	Keep the product-flow UUID, calender-roll-assembly UUID, and softwood-packaging-lumber UUID blank until an exact public state-100 identity is directly verified; never substitute a glass product, generic instrument, hardwood, or fibreboard candidate.

10. Published Dataset Profile

Field	Value
dataset_role	Foreground cradle-to-factory-gate production dataset for a declared complete machine configuration
downstream_use	May serve as a secondary_dataset or background_dataset for systems purchasing the declared machine when the user confirms configuration, geography, time, and boundary compatibility
allowed_use	Product-footprint modelling of the machine's manufacture; capital-goods scenarios; supply-chain screening; comparison of production configurations with equivalent functional and boundary qualifiers
excluded_use	Direct comparison of metal/glass rolling machinery; stand-alone rolls or parts; unqualified machine variants; use-stage performance comparison; customer-site installation; maintenance; end-of-life claims; automatic inference of service life or productivity
required_metadata	PCR id and version; machine trade name and configuration; all required qualifiers; factory geography; reporting period; accepted output mass and unit count; frame route; supplier dataset mapping; electricity attributes; packaging; allocation method; unresolved UUID status
required_quality_disclosure	Foreground coverage; meter and mass-balance completeness; supplier-specific versus generic data shares; proxy datasets; exclusions; allocation shares; uncertainty; validation findings; departures from this PCR
update_trigger	Change in machine configuration, roll construction, principal material or supplier route, factory process, electricity supply, control or drive architecture, packaging, allocation method, reporting period, or resolution of any currently blank UUID

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 CPC 43933 title and classification context
epd-international-machine-tools-pcr-2012-02-v4	Standard (standard)	EPD International, PCR 2012:02, Machine-tools for drilling, boring or milling metals and composite materials, version 4.0.0, 27 February 2024, https://api.prod.environdec.com/api/v2/EPDLibrary/Files/cfd6c3a3-b2ab-4705-5616-08dc2e3a662b/Data (retrieved 2026-09-06)	Analogous industrial-machinery system decomposition, core-process coverage, packaging inclusion, allocation hierarchy, foreground data quality, and electricity disclosure
china-mof-2026-tariff-adjustment	Official guidance (official_guidance)	Ministry of Finance of the People's Republic of China, 2026 Tariff Adjustment Plan, https://m.mof.gov.cn/czxw/202603/P020260326610286964491.pdf (retrieved 2026-09-06)	Professional Chinese terminology for tariff item 84201000