Wool, degreased or carbonized, not carded or combed · Calculation Rules

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_dry_mass	All wool inputs and outputs	dry_mass_kg = net_wet_mass_kg × (1 - moisture_mass_fraction); use matched sample and weighing period.	net_wet_mass_kg; moisture_mass_fraction	dry_mass_kg	iso-14044-2006
calc_route_yield	Each route and fibre class	dry_yield = saleable_output_dry_kg / matched_input_wool_dry_kg; report rejects and residues separately and do not mix routes or fineness classes.	saleable_output_dry_kg; matched_input_wool_dry_kg	dry_yield	eu-txt-bref-2023
calc_normalized_inventory	Each foreground inventory row	normalized_amount = matched_period_amount / matched_saleable_output_dry_kg; keep original unit and conversion factor in evidence.	matched_period_amount; matched_saleable_output_dry_kg; conversion_factor	amount per kg dry reference output	iso-14044-2006
calc_water_balance	Each route	Report gross intake, internal recycle and discharge separately; water_balance_difference = gross_intake - discharge - water_in_product_or_residue - measured_other_losses, with evaporation disclosed rather than forced to zero.	gross_intake; recycle_volume; discharge; water_in_product_or_residue; measured_other_losses	route water balance and reconciliation difference	eu-txt-bat-2022-2508
calc_grease_recovery_rate	Aqueous scouring by wool-fineness class	grease_recovery_rate = recovered_saleable_grease_kg / raw_wool_input_t. Compare only matching classes: coarse wool typically above 35 µm uses 10-15 kg/t; extra-/super-fine wool typically below 20 µm uses 50-60 kg/t. For 20-35 µm or mixed/unknown classes, collect and report the rate without applying either interval.	recovered_saleable_grease_kg; raw_wool_input_t; fibre_diameter_class	kg recovered grease/t raw wool	eu-txt-bat-2022-2508
calc_carbonising_conditions	Sulphuric-acid loose-fibre carbonizing	Record bath acid concentration, retained acid and water after hydroextraction, drying temperature, baking temperature and final pH. The BREF typical description is 6-9% mineral-acid solution, 5-7.5% sulphuric acid and 50-65% water retained after pressing/centrifugation, drying at 65-90 °C, baking at 105-130 °C and final pH 6; values outside these are flagged for explanation, not automatically overwritten.	bath_acid_percent; retained_acid_percent; retained_water_percent; drying_temperature; baking_temperature; final_pH	disclosed carbonizing-condition record and QA flag	eu-txt-bref-2023
calc_wastewater_load	Each wastewater stream	load_kg = concentration_mg_per_L × discharge_volume_L / 1,000,000; sum only matched samples and volumes and state interpolation.	concentration_mg_per_L; discharge_volume_L	kg pollutant by stream and route	eu-txt-bat-2022-2508
calc_mass_reconciliation	Each route	Reconcile dry wool input with saleable dry wool, recovered grease, dry residues, rejects and sampled losses. Investigate and disclose material imbalance; do not use a balancing flow to conceal missing records.	dry_wool_input; saleable_dry_output; recovered_grease; dry_residues; rejects; measured_losses	mass-balance difference and explanation	iso-14044-2006; eu-txt-bref-2023

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_route_identity	Dataset identity	Declare one route or a documented production-weighted mix, the process modules included, pure-sheep-wool status, fibre-diameter class and not-carded-or-combed state.	Product specification, process flow diagram, lot records and route-production totals
dq_reference_uuid_limit	Reference flow	Use the verified Scoured Wool UUID. For carbonized output, state that it is a narrower degreased-route representative and no carbonized-specific UUID was verified.	Reference-flow metadata and manifest review limitation
dq_temporal_representativeness	Foreground data	Cover a full reporting year where available; otherwise cover at least three consecutive representative production periods and disclose seasonality, shutdowns, abnormal conditions and exclusions.	Production calendar, meter coverage and exception log
dq_mass_and_moisture	Wool and solid streams	Use calibrated weighing and matched moisture or dry-solids results; do not mix wet and dry masses. Complete route-level mass reconciliation.	Calibration certificates, sampling records, laboratory results and reconciliation workbook
dq_water_energy_chemicals	Major resource inputs	Reconcile meters and dosing records to invoices or stock movement; preserve carrier and chemical identities and disclose shared-utility allocation.	Meter calibration, invoices, stock reconciliation and allocation workbook
dq_emissions_wastewater	Direct releases and transfers	Use pollutant-specific records and matched flows; retain sampling location, method, laboratory, detection-limit treatment and wastewater destination.	Monitoring plan, chain of custody, analytical reports, permit records and transfer notes
dq_estimate_replacement	All reasoned_estimate ranges	Use reasoned ranges only to flag records for review. Never populate missing foreground values from them. Replace them after three consecutive representative periods, after material process change, or before publication-critical comparison.	Range replacement log, reviewed site statistics or stronger external evidence
dq_source_applicability	External evidence	Document whether each BREF/BAT statement is descriptive, typical or normative and whether installation scale and route match; do not turn a typical process description into an emission limit.	Source applicability note and reviewer approval

9. Validation Rules

rule_id	applies_to	rule	source_ids
validate_reference_identity	reference_flow	Fail when the reference product UUID, mass-property UUID, unit-group UUID or kg unit differs from this PCR. For carbonized_route, also fail when the narrower-identity limitation is absent.	un-cpc-30-2025
validate_route_process_set	process_map_and_inventory	Fail when the declared route and included modules conflict: degreased requires scouring; integrated carbonized requires scouring plus carbonizing; carbonizing-only requires carbonizing and one upstream scoured-wool dataset.	eu-txt-bref-2023
validate_scope_qualifiers	product_identity	Fail when route, sheep-wool fineness class, pure-wool status, incoming state, output moisture basis, residual grease/vegetable-matter specification or not-carded-or-combed state is missing; reject blends and downstream forms from this PCR.	un-cpc-30-2025; eu-txt-bref-2023
validate_no_unconditional_average	aggregation	Fail when degreased and carbonized routes, different carbonizing chemistries, pure wool and blends, or coarse/fine wool are averaged without route-specific records, production weights and an explicit mixed-product scope.	eu-txt-bref-2023
validate_grease_recovery_conditioning	recovered_wool_grease	Apply the 10-15 kg/t raw wool screen only to coarse wool typically above 35 µm and 50-60 kg/t only to extra-/super-fine wool typically below 20 µm. For other or mixed classes, report foreground rate without either screen. Flag outliers for explanation; do not replace observations.	eu-txt-bat-2022-2508
validate_carbonising_conditions	sulphuric_acid_carbonising	Require measured bath/retained-acid conditions, drying and baking temperatures, neutralizing agent and final pH. Flag departures from the BREF typical condition ranges for route evidence and product-quality review; do not automatically fail a documented alternative technology.	eu-txt-bref-2023
validate_recovery_and_water_disclosure	aqueous_scouring	Require gross water, recycle, discharge, recovered grease, dirt/sludge and wastewater destination. Flag absent grease recovery or water recycle for BAT applicability review rather than silently assuming zero.	eu-txt-bat-2022-2508
validate_foreground_completeness	all_foreground_rows	Fail when a collected/calculated row lacks a collection protocol, matched temporal coverage, normalization basis or supporting record. Treat missing values as incomplete; never fill them from a reasoned_estimate range.	eu-txt-bat-2022-2508; iso-14044-2006
validate_mass_balance	each_route	Fail when wet and dry bases are mixed. Flag material dry-mass imbalance for investigation and require an explanation for unresolved difference; prohibit undisclosed balancing flows.	iso-14044-2006
validate_allocation	multifunctional_operations	Fail when co-product or shared-treatment allocation is undisclosed or when economic allocation is used without first documenting subdivision/system-expansion and physical-relationship assessment.	eu-pef-2021-2279; iso-14044-2006

10. Published Dataset Profile

Field	Value
dataset_role	Foreground gate-to-gate wool-preparation dataset for a declared degreased or carbonized route
downstream_use	secondary_dataset; background_dataset after methodology and translation review and only within the disclosed route, fibre class, technology, geography and period
allowed_use	LCA foreground packages and downstream process/lifecyclemodel projections requiring loose degreased or carbonized sheep wool before carding or combing; route-specific comparison when primary records are complete
excluded_use	Greasy/raw wool, non-sheep animal hair, blends, noils/waste, carded/combed wool, tops, yarn, fabric, farm-gate wool production, fabric carbonizing, or an exact carbonized-wool UUID claim
required_metadata	PCR id and version state; Tiangong UUIDs; route and included modules; facility and geography; reporting period; fibre-diameter class; pure-wool status; incoming state; dry-mass/moisture method; residual grease and vegetable-matter specification; carbonizing chemistry and conditions; water/recovery configuration; wastewater and waste destinations; allocation; upstream datasets; carbonized identity limitation
required_quality_disclosure	Foreground-versus-calculated data share; meter and sampling coverage; mass/water reconciliations; route-specific yield; grease recovery rate and applicable fibre-class screen; reasoned-estimate flags and replacement status; exclusions, allocations, data gaps, abnormal operation and source applicability
update_trigger	New verified carbonized-wool product-flow UUID; material change in route, fibre mix, chemicals, recovery or treatment; three representative periods sufficient to replace provisional screens; new official BAT/BREF or classification revision; monitoring or mass-balance failure; reviewer acceptance or rejection of the candidate methodology

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-30-2025	official_guidance	United Nations Statistics Division, CPC Version 3.0 Explanatory Notes, 30 June 2025, code 26130, https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf (retrieved 2026-08-12)	Official category identity and distinction from carded/combed wool and neighbouring natural-fibre products
eu-txt-bref-2023	official_guidance	European Commission Joint Research Centre, Best Available Techniques (BAT) Reference Document for the Textiles Industry, EUR 31392 EN, JRC131874, DOI 10.2760/355887, Sections 2.3.1, 2.6.2.1.1 and 4.2, https://publications.jrc.ec.europa.eu/repository/handle/JRC131874 (retrieved 2026-08-12)	Scouring and loose-fibre carbonizing process decomposition, route alternatives, typical carbonizing conditions, recovery configurations, emissions and resource-efficiency context
eu-txt-bat-2022-2508	official_guidance	Commission Implementing Decision (EU) 2022/2508 of 9 December 2022 establishing BAT conclusions for the textiles industry, ELI http://data.europa.eu/eli/dec_impl/2022/2508/oj (retrieved 2026-08-12)	Input/output inventories, water/energy/material monitoring, wastewater monitoring, wool-grease recovery and water-recycle requirements, fibre-class-conditioned grease-recovery performance levels
eu-pef-2021-2279	official_guidance	Commission Recommendation (EU) 2021/2279 of 15 December 2021 on the use of Environmental Footprint methods, ELI http://data.europa.eu/eli/reco/2021/2279/oj, allocation decision hierarchy (retrieved 2026-08-12)	Subdivision/system-expansion-first allocation hierarchy and physical-relationship allocation rule
iso-14044-2006	standard	ISO 14044:2006, Environmental management - Life cycle assessment - Requirements and guidelines, confirmed 2022, https://www.iso.org/standard/38498.html (retrieved 2026-08-12)	LCI consistency, transparent allocation, normalization, documentation and data-quality framework