Tennis shoes, basketball shoes, gym shoes, training shoes and the like · Calculation Rules

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_bom_mass_balance	Each manufacturing process	Reconcile opening stock plus issued material with returned stock, conforming output, each material-specific waste, rejects, and closing stock; investigate rather than invent unexplained differences.	Product-specific BOM, issue and return, output, waste, reject, and stock records	Signed mass balance by process and SKU	af-pefcr-2025
calc_count_to_mass	Laces, eyelets, sole components, sockliners, boxes, cartons, and labels	Component mass equals the product-specific count multiplied by measured or supplier-declared unit mass.	Count and unit mass	kg of one component or packaging item	af-pefcr-2025
calc_shared_energy	Shared manufacturing utilities	Allocate electricity, steam, hot water, natural gas, and LPG separately using carrier-specific meters and causal drivers.	Meter total; equipment demand or thermal data; operating time or cycles; process output	kWh or MJ assigned to one process	eu-pef-2021
calc_refrigerant_emission	R-134a sole-molding chiller	R-134a emitted equals opening charge plus make-up minus closing charge minus recovered refrigerant, adjusted only for documented transfers.	Opening and closing charge; make-up; recovery; transfers	kg R-134a to air
calc_solvent_emission	Ethyl acetate or acetone	Calculate each solvent independently as input plus opening stock minus recovery, amount retained in product and wastes, closing stock, and documented transfers; do not combine VOC species.	Solvent-specific purchase, issue, return, recovery, waste analysis, and stock	kg of one solvent emitted to air	eu-pef-2021
calc_combustion_co2	Natural gas or LPG	Calculate fossil CO2 separately for each fuel from measured lower-heating-value energy and a documented site or supplier carbon factor.	Fuel-specific energy and carbon factor	kg fossil CO2 to air by fuel and process
calc_reference_normalization	Complete foreground inventory	Divide every included exchange by net conforming sports-shoe mass, excluding removable packaging, so the reference output equals exactly 1 kg.	Included exchange totals and net reference-product mass	Exchange amount per 1 kg reference product	eu-pef-2021

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_product_identity	Reference product	Record intended sport, sizing system and range, pairs and shoes per kg, colourway, upper, lining, midsole, outsole, sockliner, closure, bonding system, grade, and packaging.	Approved product specification, BOM, inspection, and dispatch records
dq_bom_specificity	Materials and components	Use the BOM for the exact SKU or colourway; retain supplier, composition, unit mass, recycled content when claimed, issue, return, and loss evidence for every material and component.	Approved BOM, supplier specification, purchase, issue, and return records
dq_chemical_identity	Adhesives, primer, and solvents	Preserve commercial product, active substance or resin, carrier solvent, concentration, supplier, lot, SDS, and process use; prohibit a generic chemicals row.	Purchase document, SDS, supplier assay, and signed recipe
dq_metering	Water and energy carriers	Use calibrated process meters where available and disclose carrier-specific allocation from shared meters with the driver and uncertainty.	Calibration certificate, meter log, invoice, and allocation worksheet
dq_temporal	Foreground activity data	Cover a representative continuous 12-month period or the complete production campaign and disclose shutdowns, atypical lots, and data gaps.	Production calendar and completeness review
dq_completeness	Inventory	Demonstrate coverage of product-specific BOM materials, components, each adhesive or chemical, electricity by stage, steam, hot water, each fuel, each refrigerant, packaging, material-specific wastes, and each direct emission without aggregate selector flows.	Signed completeness checklist reconciled to BOM, purchasing, utility, production, maintenance, solvent, and waste ledgers
dq_transparency	Dataset	Disclose exclusions, supplier-made components, shared-meter allocation, missing foreground records, calculations, waste destinations, direct-emission balances, and limitations.	Dataset report and reviewer checklist

9. Validation Rules

rule_id	Applies to	Rule	Sources
validate_reference_identity	Reference flow	Reject a dataset unless the output is exactly 1 kg, uses flow 3fb395b7-1901-4a81-8b89-b8300bd9134e, Mass 93a60a56-a3c8-11da-a746-0800200b9a66, Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66, kg, and all required qualifiers are declared.	un-cpc-v3-2025
validate_scope	Product identity	Reject footwear outside CPC 29420 or without a declared tennis, basketball, gym, training, or similar athletic function.	un-cpc-v3-2025
validate_atomic_inventory	Inventory rows	Reject any row combining materials, components, chemicals, energy carriers, refrigerants, packaging, wastes, or emissions; every selected flow shall denote one specific exchange.	eu-pef-2021
validate_bom_loss	Materials and components	Require product-specific BOM mass, returned stock, conforming output, material-specific loss, rejects, and stock change to reconcile for every included process.	af-pefcr-2025
validate_adhesives_and_solvents	Bonding	Require waterborne polyurethane dispersion, polyurethane resin, ethyl acetate, chlorinated polyolefin primer, acetone, residues, and solvent emissions as separate rows when used; add a separate atomic row for any other actual formulation or substance.	af-pefcr-2025; eu-pef-2021
validate_energy_routes	Manufacturing energy	Require stage-specific electricity and separate purchased steam, supplied hot water, natural gas, and LPG rows whenever used; prohibit a combined heat or fuel exchange.	eu-pef-2021
validate_refrigerants	Cooling systems	Require separate product-input and air-emission rows for every refrigerant actually present; R-134a rows may be not applicable only with equipment and service-log evidence.	eu-pef-2021
validate_direct_emissions	Air emissions	Require ethyl acetate, acetone, R-134a, natural-gas fossil CO2, and LPG fossil CO2 as separate species and process rows when applicable.	eu-pef-2021
validate_packaging	Packaging	Require tissue paper, shoe box, shipping carton, LDPE bag, paper label, and their material-specific wastes as separate rows when used, and exclude removable packaging from net reference mass.	af-pefcr-2025
validate_supplier_components	Purchased components	Require a matching supplier dataset for each purchased upper, midsole, outsole, sockliner, or molded component and omit only the exact on-site operation covered upstream.	af-pefcr-2025; eu-pef-2021
validate_no_reasoned_ranges	Amounts	Reject undocumented default quantities and AI-generated numeric ranges; use foreground records or documented calculations.	eu-pef-2021
validate_sources_and_protocols	Evidence links	Require every source id and collection protocol referenced by an inventory row or rule to resolve to a declared source or protocol.	eu-pef-2021

10. Published Dataset Profile

Field	Value
dataset_role	Foreground manufacturing dataset for CPC 29420 sports shoes
downstream_use	Secondary dataset or background dataset for product systems requiring a matching finished sports-shoe input
allowed_use	Products matching intended sport, size range, pairs per kg, upper, midsole, outsole, sockliner, closure, bonding system, colourway, quality grade, plant technology, geography, period, and packaging
excluded_use	Footwear outside CPC 29420, safety or protective footwear, ski boots, skates, materially different BOMs or production routes, or products with undisclosed reference qualifiers
required_metadata	PCR id; CPC code; reference-flow UUID; intended sport; sizing system and range; pair and shoe count; net mass; product-specific BOM; supplier-made components; process inclusion; adhesives and solvents; energy routes; refrigerants; colourway; grade; packaging; plant; geography; period; allocation; waste destinations
required_quality_disclosure	Foreground coverage; missing or calculated records; BOM version; scale and meter calibration; chemical identity; solvent and refrigerant balances; mass reconciliation; shared-utility allocation; upstream dataset identities; uncertainty and limitations
update_trigger	Reassess after a material change in SKU or BOM, supplier, material composition, component construction, molding route, adhesive or solvent, equipment, refrigerant, energy mix, packaging, waste destination, allocation, geography, or production performance

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-v3-2025	Official guidance (official_guidance)	United Nations Statistics Division, CPC Version 3.0 official classification entry and CPC_Ver_3.0_Structure_30Jun2025.csv, https://unstats.un.org/unsd/classifications/Econ/CPC	CPC 29420 scope and title
eu-pef-2021	Official guidance (official_guidance)	European Commission Recommendation (EU) 2021/2279, Product Environmental Footprint Method, https://eur-lex.europa.eu/eli/reco/2021/2279/2021-12-30/eng	Product-specific BOM, company-specific manufacturing data, LCI completeness, allocation, transparency, and data quality
af-pefcr-2025	Official guidance (official_guidance)	Apparel and Footwear Product Environmental Footprint Category Rules v3.1, 29 April 2025, https://www.carbonfact.com/hubfs/A%26FW_PEFCR_v3.1.pdf	Footwear BOM, manufacturing loss, packaging, and process-data structure