Plates, sheets and strip, of copper, of a thickness exceeding 0.15 mm

1. Scope and Applicability

This PCR covers gate-to-gate fabrication of copper and copper-alloy plate, sheet, and strip whose finished thickness exceeds 0.15 mm. The declared starting condition is a received cast slab suitable for flat rolling. The foreground boundary includes slab preparation and preheating, hot rolling and surface milling when used, cold rolling when used, intermediate or final annealing, pickling and rinsing when used, drying, levelling, slitting or cutting, internal material recirculation, and on-site treatment directly serving these operations.

The PCR excludes copper foil at or below 0.15 mm, copper wire, rod, bar, profiles, tubes and fittings, coated or laminated products whose non-copper layer changes product identity, upstream mining, concentrating, smelting, refining and off-site slab casting, and downstream component manufacture, packaging, distribution, use and end-of-life. A dataset shall declare copper grade or alloy designation, plate/sheet/strip form, thickness, width, temper, surface finish, rolling and annealing route, pickling route, recycled-content claim if any, geography, technology, and reporting period.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.basic-metals.plates-sheets-and-strip-of-copper-of-a-thickness-exceeding-0-15-mm
classification_refs	CPC 3.0: 41514 (exact classification context)
covered_products	Uncoated copper or copper-alloy plate, sheet, and strip with finished thickness greater than 0.15 mm, fabricated from a declared cast slab starting condition
excluded_products	Copper foil at or below 0.15 mm; wire, rod, bar, profiles, tubes and fittings; coated or laminated products with materially different identity; upstream refined copper and slab production; downstream fabricated components
representative_product	Red copper strip and sheet exceeding 0.15 mm, delivered at the fabrication-site gate in the declared temper and finish
production_route	Slab preheating and hot rolling, followed as applicable by milling, cold rolling, annealing, pickling/rinsing/drying, levelling, slitting or cutting
market_state	Saleable plate, sheet, or strip; unpackaged at the fabrication-site gate; alloy, temper, dimensions, surface condition and edge condition declared

3. Reference Flow

Field	Value
What	Saleable copper or copper-alloy plate, sheet, or strip with finished thickness greater than 0.15 mm
How much	1,000 kg net saleable product
How well	Conforming to the declared alloy/grade, thickness, width, temper, surface finish, flatness and edge condition
How long or cycle	One production campaign and reporting period sufficient to represent normal operation; no use-duration function is assigned
reference_flow_link	The measured net mass of conforming final product leaving the foreground fabrication boundary

Field	Value
Reference amount	1,000 kg
Reference product flow	Red Copper Strip and Sheet 73ddbcd1-2f64-4406-93cd-0e9ba320cc1e
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	copper grade or alloy designation; plate, sheet, or strip form; finished thickness greater than 0.15 mm; width and length or coil form; temper; surface finish; edge condition; rolling route; annealing atmosphere; pickling route; recycled-content accounting method; production geography; technology; reporting period

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 data-package field. The Tiangong reference product is representative; its UUID does not replace the required declaration of the actual alloy, dimensions, temper, and finish.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_product_mass	Reference product and all solid copper-bearing inputs and outputs	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Determine net dry mass on calibrated scales; normalize all inventory results to 1,000 kg of conforming final product and exclude packaging mass.
electricity_energy	Purchased electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve the metered electricity quantity and conversion basis; if the source record is in kWh, convert using 1 kWh = 3.6 MJ and retain both values.
gas_volume	Purchased gaseous natural gas and protective-atmosphere gases	Volume 93a60a56-a3c8-22da-a746-0800200c9a66	m3	Report metered volume at declared reference temperature and pressure; retain supplier energy content or composition separately when used for calculations.
water_and_solution_mass	Process water, acids, alkali, rolling oil and liquid wastes	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Prefer direct mass records; when volume is converted to mass, record density, concentration, temperature, source and calculation.

5. System Boundary

rule_id	applies_to	rule	source_ids
sb_start_at_cast_slab	foreground_start	Begin the foreground system with a received cast copper or copper-alloy slab suitable for flat rolling; represent mining, refining and off-site slab production with upstream datasets.	eu-jrc-nfm-bref-2017
sb_include_fabrication_operations	foreground_operations	Include all site operations required to convert the received slab into conforming plate, sheet or strip, including applicable preheating, rolling, milling, annealing, pickling, rinsing, drying, levelling, slitting, cutting, internal recirculation and directly serving treatment.	eu-jrc-nfm-bref-2017
sb_route_specific_exchanges	conditional_operations	Include each gas, chemical, water and waste exchange only when the declared equipment and surface-treatment route uses or generates that exchange; do not substitute an aggregated utility or waste category.	eu-jrc-nfm-bref-2017
sb_exclude_downstream_stages	downstream_scope	Exclude packaging, distribution, component fabrication, use and end-of-life unless the study explicitly extends the system and reports those stages separately.

Boundary Abstraction

Field	Value
declared_starting_condition	Cast copper or copper-alloy slab received at the flat-product fabrication site, with grade/alloy, mass, dimensions, supplier, geography and upstream dataset declared
starting_condition_role	Upstream product input and physical starting point for gate-to-gate flat rolling and finishing
product_classification_scope	Copper and copper-alloy plate, sheet and strip with finished thickness greater than 0.15 mm; CPC 3.0 code 41514 is classification context, not canonical PCR identity
recursive_input_rule	If an input is already a plate, sheet or strip within this same product category, record its measured mass as a separate upstream product input with its own dataset and exclude that upstream quantity from the cast-slab row; do not recursively apply this foreground fabrication inventory to it.
upstream_dataset_requirement	Use supplier-specific or representative upstream datasets for the declared cast slab, purchased energy, gases, water and chemicals; disclose geography, technology, recycled-content accounting and data vintage.
disclosure	Declare starting-product grade/alloy and dimensions, whether hot rolling, cold rolling, annealing, pickling and on-site treatment occur, all internal recycling loops, exported scrap treatment, allocation choices, and any boundary extension.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
flat_copper_product_fabrication	Flat copper product rolling, annealing and finishing	required	Always; individual route-specific exchanges are recorded only when the declared production route uses or generates them	Foreground conversion of received cast slab to conforming plate, sheet or strip	1,000 kg net saleable product

Process: Flat copper product rolling, annealing and finishing (flat_copper_product_fabrication)

Inputs

Product flows

Cast copper slab feedstock (cast_copper_slab_input)

Record the received cast slab that enters preheating or rolling. The row is one solid copper-bearing feedstock exchange; grade/alloy and dimensions are mandatory qualifiers.

• Selected flow: Cast copper slab
• Flow property / unit: Mass / kg
• Amount rule: measured net mass accepted into the production campaign
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_mass
• Sources: eu-jrc-nfm-bref-2017

Purchased electricity (electricity_input)

Record electricity crossing the site boundary for drives, rolling mills, furnaces, pumps, ventilation, treatment, and finishing; retain the site submetering allocation.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: metered purchased electricity allocated to the product campaign
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_records
• Sources: eu-jrc-nfm-bref-2017

Gaseous natural gas (natural_gas_input)

Record purchased gaseous natural gas only when it is consumed by preheating, annealing, drying, protective-gas generation, or other directly serving foreground equipment.

• Selected flow: natural gas in the gaseous state 4f19ca0e-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Volume / m3
• Amount rule: metered foreground natural-gas volume at declared reference conditions; zero is permitted only with documented non-use
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_gas_records
• Sources: eu-jrc-nfm-bref-2017

Gaseous nitrogen for annealing (gaseous_nitrogen_input)

Record purchased gaseous elemental nitrogen when the declared annealing route uses nitrogen alone or in a protective-gas mixture. Do not use this row for liquid nitrogen delivered to the site.

• Selected flow: Gaseous nitrogen
• Flow property / unit: Volume / m3
• Amount rule: metered purchased gaseous nitrogen at declared reference conditions; not applicable when the route does not use purchased nitrogen
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_gas_records
• Sources: eu-jrc-nfm-bref-2017

Gaseous hydrogen for annealing (gaseous_hydrogen_input)

Record purchased gaseous elemental hydrogen when the declared reducing-atmosphere annealing route uses it. Keep hydrogen generated on site and its precursor inputs in separately disclosed processes.

• Selected flow: Gaseous hydrogen
• Flow property / unit: Volume / m3
• Amount rule: metered purchased gaseous hydrogen at declared reference conditions; not applicable when the route does not use purchased hydrogen
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_gas_records
• Sources: eu-jrc-nfm-bref-2017

Cold-rolling oil make-up (cold_rolling_oil_input)

Record the mass of cold-rolling oil added to the rolling-oil circuit. Exclude internally recirculated oil from gross input and retain formulation and water content in supporting records.

• Selected flow: cold rolling oil a9417245-6f45-4df3-8f04-227ed8a1be58
• Flow property / unit: Mass / kg
• Amount rule: purchased or externally supplied cold-rolling-oil make-up issued to the campaign
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_consumable_records
• Sources: eu-jrc-nfm-bref-2017

Process water (process_water_input)

Record net process water supplied for roll cooling, applicable pickling and rinsing, brushing, and directly serving treatment after deducting documented closed-loop recirculation.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: metered net make-up process water crossing the foreground boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_water_records
• Sources: eu-jrc-nfm-bref-2017

Sulfuric acid for pickling (sulfuric_acid_input)

Record sulfuric acid make-up when the declared surface-treatment route uses a sulfuric-acid pickling bath. Record delivered acid mass and concentration without including recycled bath solution as a new input.

• Selected flow: Sulfuric acid 7ee2e3c3-bee7-4520-92b7-3e23afbfcd6f
• Flow property / unit: Mass / kg
• Amount rule: purchased sulfuric-acid solution mass and concentration issued to the foreground pickling route
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_consumable_records
• Sources: eu-jrc-nfm-bref-2017

Sodium hydroxide for neutralization (sodium_hydroxide_input)

Record sodium hydroxide only when it is consumed by on-site neutralization of pickling or rinse streams directly serving the foreground line; retain delivered concentration.

• Selected flow: Sodium hydroxide e0abcced-0611-4c24-9290-5a2c5a0c4169
• Flow property / unit: Mass / kg
• Amount rule: purchased sodium-hydroxide solution mass and concentration issued to directly serving treatment
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_consumable_records
• Sources: eu-jrc-nfm-bref-2017

Waste flows

No waste flow enters the declared foreground process. Any externally received secondary material belongs to the upstream slab-production dataset and shall not be merged into the cast-slab input.

Elementary flows

No elementary input is prescribed. If the site directly abstracts water or other natural resources, add each measured elementary input as a separate site-specific exchange.

Outputs

Product flows

Conforming copper plate, sheet, or strip (final_product_output)

Record only net saleable product that meets the declared thickness, alloy/grade, temper, dimensions, surface and edge specifications.

• Selected flow: Red Copper Strip and Sheet 73ddbcd1-2f64-4406-93cd-0e9ba320cc1e
• Flow property / unit: Mass / kg
• Amount rule: measured net mass of conforming product; the normalized result is exactly 1,000 kg
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_mass
• Sources: un-cpc-3-0-2025

Waste flows

Copper edge trim and offcuts (copper_offcuts_output)

Record segregated metallic copper or copper-alloy edge trim and offcuts leaving the process for internal or external recovery. Retain alloy, contamination, destination and whether an internal loop was excluded from gross exchange totals.

• Selected flow: Copper Scrap 4fbbb5f1-560a-4052-ba0c-652c5dfc282e
• Flow property / unit: Mass / kg
• Amount rule: measured mass of segregated copper trim and offcuts leaving the foreground process
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_output_records
• Sources: eu-jrc-nfm-bref-2017

Spent cold-rolling oil (spent_cold_rolling_oil_output)

Record spent cold-rolling oil removed from the rolling-oil circuit and transferred for treatment or recovery. Do not combine it with cutting oil, solvent, or aqueous pickling waste.

• Selected flow: Spent cold-rolling oil
• Flow property / unit: Mass / kg
• Amount rule: measured mass removed from the circuit after deducting documented internal recovery and return
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_output_records
• Sources: eu-jrc-nfm-bref-2017

Spent sulfuric-acid copper pickling solution (spent_sulfuric_acid_output)

Record spent sulfuric-acid solution containing dissolved copper when it leaves the bath for on-site or off-site recovery or treatment. Do not combine it with rinse water, sludge, or another acid.

• Selected flow: Spent sulfuric-acid copper pickling solution
• Flow property / unit: Mass / kg
• Amount rule: measured transferred mass with acid concentration and dissolved-copper content retained
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_output_records
• Sources: eu-jrc-nfm-bref-2017

Elementary flows

Direct fossil carbon dioxide (fossil_carbon_dioxide_output)

Record fossil carbon dioxide emitted directly from foreground combustion or carbon-bearing protective-gas generation. Exclude upstream emissions embodied in purchased electricity, fuels, gases, chemicals and slab datasets.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: calculate from metered foreground fossil-fuel consumption and measured or supplier-validated carbon content, with oxidation assumptions disclosed
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg net saleable plate, sheet, or strip output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_direct_co2_calculation
• Sources:

7. Allocation and Co-product Handling

rule_id	applies_to	rule	source_ids
allocation_subdivide_first	shared_foreground_operations	Prefer process subdivision and direct metering for product campaigns, rolling lines, furnaces and treatment units before applying allocation.
allocation_internal_recycling	internal_copper_and_oil_loops	Exclude internally recirculated copper, rolling oil, acid and water from gross boundary exchanges; record only make-up inputs and materials that leave the foreground boundary, and disclose loop losses.	eu-jrc-nfm-bref-2017
allocation_multiple_products	multiple_saleable_products	When one campaign yields more than one saleable plate, sheet or strip product and direct subdivision is impracticable, allocate shared burdens by net conforming product mass unless a documented causal relation justifies another basis; disclose products, masses and sensitivity.
allocation_exported_scrap	exported_copper_scrap	Record exported copper trim and offcuts as a waste output at measured mass without an avoided-burden credit inside this gate-to-gate foreground dataset; any downstream recycling allocation or substitution belongs to the consuming lifecycle model and shall be disclosed.

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_material_mass	flat_copper_product_fabrication	cast slab input and conforming product output	scale record and production order	timestamp; batch; alloy/grade; dimensions; gross mass; tare; net mass; product disposition	calibrated inbound/outbound or process scales reconciled to production orders	kg	each lot or coil	representative campaign and at least the declared reporting period	all in-scope lines and products	sum accepted slab and conforming product masses, then normalize to 1,000 kg product	calibration certificates; tare checks; order reconciliation; rejected-product log
cp_energy_records	flat_copper_product_fabrication	purchased electricity	revenue meter, submeter and invoice	meter id; opening/closing readings; kWh; line; equipment; operating hours; allocation key	reconcile site invoice with line and major-equipment submeters	kWh and MJ	continuous or shift readings, aggregated monthly	full reporting period including representative production and downtime	all directly serving rolling, furnace, pumping, ventilation, treatment and finishing equipment	subtract excluded loads and allocate residual shared loads by documented causal driver	meter calibration; invoice reconciliation; submeter coverage statement
cp_gas_records	flat_copper_product_fabrication	natural gas, gaseous nitrogen and gaseous hydrogen	flow meter and supplier record	gas identity; meter id; volume; temperature; pressure; energy content or purity; equipment; batch	reconcile calibrated line meters with supplier invoices and tank/pipe balance	m3 at declared reference conditions	continuous or per campaign	full reporting period	all in-scope furnaces, dryers and protective-atmosphere systems	sum each gas separately and normalize by conforming product mass	calibration; supplier certificate; reference-condition conversion; leak and balance check
cp_consumable_records	flat_copper_product_fabrication	cold-rolling oil, sulfuric acid and sodium hydroxide	inventory issue, purchase and bath-management record	chemical identity; formulation; concentration; issued mass; returned mass; tank level; line; batch	reconcile stores issues and tank changes with line logs; exclude documented recirculation	kg solution or product as delivered	each issue and bath change	full reporting period	all in-scope rolling, pickling and directly serving treatment systems	net external make-up by substance, normalized by conforming product mass	supplier specification; concentration analysis; tank calibration; stock reconciliation
cp_water_records	flat_copper_product_fabrication	net process water	water meter and water-balance record	source; meter id; volume or mass; density if converted; use area; recirculated volume; discharge	calibrated meters and documented water balance by use area	kg, with source volume retained	continuous or daily	full reporting period	roll cooling, surface treatment, rinsing, brushing and directly serving treatment	external make-up less documented out-of-scope use; do not subtract water leaving in waste unless required by the site balance	meter calibration; water-balance closure; density and conversion record
cp_output_records	flat_copper_product_fabrication	copper scrap, spent rolling oil and spent pickling solution	scale ticket, waste manifest and transfer analysis	identity; mass; alloy or composition; acid concentration; dissolved copper; oil/water content; destination; recovery route	weigh each container or transfer and reconcile with handler documentation	kg	each transfer	full reporting period	all in-scope generation points and storage	sum each waste separately after excluding documented internal return	scale calibration; manifest; laboratory analysis; receiver and recovery evidence
cp_direct_co2_calculation	flat_copper_product_fabrication	direct fossil carbon dioxide	fuel meter, supplier composition and calculation record	fuel volume or mass; carbon content; reference conditions; oxidation assumption; equipment; period	calculate fossil carbon dioxide from collected fuel carbon entering direct foreground combustion or gas generation	kg CO2	monthly and reporting-period total	full reporting period	all in-scope direct fossil combustion and on-site carbon-bearing protective-gas generation	sum source-specific calculated emissions and normalize by conforming product mass	metering evidence; supplier certificate or measured carbon content; formula version; reviewer check

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_reference_normalization	every inventory row	normalized amount = campaign exchange amount × 1,000 / campaign net mass of conforming final product	campaign exchange amount; net conforming product mass	amount per 1,000 kg reference product
calc_volume_to_mass	water and delivered liquid solutions when only volume is measured	mass = measured volume × density at the recorded temperature; keep concentration on an as-delivered basis	volume; density; temperature; concentration	kg solution or water
calc_direct_fossil_co2	fossil_carbon_dioxide_output	convert measured fossil-fuel carbon entering direct foreground equipment to carbon dioxide using the documented carbon balance and oxidation assumption; do not include upstream supply-chain emissions	fuel quantity; carbon content; oxidation assumption; molecular mass conversion	kg direct fossil CO2
calc_copper_mass_balance	copper-bearing inputs and outputs	reconcile cast-slab copper-bearing mass with conforming product, exported scrap, measured treatment residues and inventory change; investigate unexplained imbalance	slab mass; product mass; scrap mass; measured residues; work-in-process change	campaign copper-bearing mass-balance closure

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_product_identity	reference product and cast slab	Declare grade/alloy, form, thickness, dimensions, temper, surface, edge condition and product disposition; separate nonconforming and foil output.	production order; inspection certificate; material certificate; dimensional test record
dq_temporal_coverage	all foreground exchanges	Cover a representative production period that includes routine start-up, steady production, product changes, maintenance and downtime, or disclose and justify every exclusion.	reporting calendar; line logs; maintenance and downtime records
dq_metering	energy, gas, water and mass records	Use calibrated meters or reconciled supplier records; document estimation only for measured gaps and report its share.	calibration certificates; invoices; reconciliation and gap log
dq_completeness	process inventory	Account separately for every applicable atomic exchange in this PCR and disclose any confirmed non-applicable row; do not replace rows with aggregated utilities, chemicals, wastes or air emissions.	completed inventory checklist; non-applicability evidence; mass and energy reconciliation
dq_route_disclosure	system boundary	Declare hot/cold rolling, furnace fuel, annealing atmosphere, pickling chemistry, water recirculation, oil/acid recovery, scrap routing and directly serving treatment.	process flow diagram; equipment list; operating procedure; waste route documentation
dq_uncertainty	calculated and allocated values	Retain raw values, formulas, allocation keys, uncertainty or data-gap notes, and a reviewer-reproducible calculation workbook or equivalent record.	calculation file; version history; independent check

9. Validation Rules

rule_id	applies_to	rule	source_ids
val_reference_identity	reference_flow	Fail validation if net product thickness is not greater than 0.15 mm or if grade/alloy, product form, dimensions, temper, surface finish, edge condition, geography, technology or reporting period is absent.	un-cpc-3-0-2025
val_inventory_atomicity	process_inventory	Fail validation when one inventory row combines multiple utilities, gases, chemicals, wastes or emissions, or when a selected flow is a collection or future selector instead of one concrete exchange.
val_mass_normalization	inventory_amounts	Recalculate every amount to 1,000 kg net conforming product and verify unit conversions, excluded packaging, and separate treatment of nonconforming product and scrap.
val_route_completeness	conditional_exchanges	For each gas, acid, alkali and waste row, require either a measured amount or documented route-specific non-applicability; verify declared equipment against process and purchasing records.	eu-jrc-nfm-bref-2017
val_copper_balance	copper_bearing_flows	Require a documented copper-bearing mass balance across slab input, conforming product, copper scrap, residues and inventory change; investigate and disclose unexplained imbalance.
val_direct_co2	direct_emissions	Verify direct fossil carbon dioxide against metered fossil-fuel carbon and exclude upstream emissions from purchased electricity, fuels, gases, chemicals and slab datasets.
val_uuid_and_locale	tiangong_identity	Require state-100 Tiangong UUIDs to match flow type, property and unit group, and require the official Tiangong Chinese baseName in the Chinese rendering; keep audited unresolved rows UUID-empty.
val_source_and_range_status	evidence	Verify every cited source against original text; treat all missing external ranges listed in manifest review metadata as unresolved evidence needs and never infer a range from one case or unverified metadata.

10. Published Dataset Profile

Field	Value
dataset_role	Gate-to-gate foreground dataset for flat copper and copper-alloy plate, sheet, or strip fabrication
downstream_use	secondary_dataset; background_dataset after independent review and resolution of product-specific upstream links and material evidence gaps
allowed_use	Product carbon footprint and LCA models that need a disclosed flat-copper-product fabrication stage consistent with the declared slab starting condition and product qualifiers
excluded_use	Copper mining, smelting, refining or slab-production datasets; foil at or below 0.15 mm; wire, rod, tube or fabricated component production; undisclosed cradle-to-gate claims; generic substitution across alloy, temper or surface routes without sensitivity review
required_metadata	canonical PCR id; product UUID; grade/alloy; product form; thickness; dimensions; temper; surface and edge condition; slab dataset; rolling/annealing/pickling route; geography; technology; reporting period; allocation; data sources; unresolved identity and range status
required_quality_disclosure	primary-data share; meter and scale coverage; temporal representativeness; missing-data estimation; mass-balance closure; allocation sensitivity; internal recycling treatment; upstream dataset choices; unresolved Tiangong identities and range-evidence needs
update_trigger	Change in alloy or product form, thickness side of the 0.15 mm boundary, rolling or furnace technology, annealing atmosphere, pickling chemistry, recovery route, site geography, allocation method, upstream slab dataset, or material change in measured energy, water, yield, waste or direct emissions

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-3-0-2025	dataset	United Nations Statistics Division, CPC Version 3.0 Structure, 30 June 2025, official CSV, retrieved 2026-09-04	Original-text verification of CPC 41514 identity and the thickness boundary separating the product from copper foil
eu-jrc-nfm-bref-2017	official_guidance	European Commission Joint Research Centre, Best Available Techniques (BAT) Reference Document for the Non-Ferrous Metals Industries, JRC107041, 2017, official PDF, retrieved 2026-09-04	Original-text verification of cast slab/cake starting material; hot and cold rolling, annealing, pickling, rinsing, drying and finishing; rolling oil, protective gases, water, acid, alkali, scrap and recovery/treatment roles