Yarn of Wool, Fine or Coarse Animal Hair, or Horse Hair

1. Scope and Applicability

This PCR governs foreground data packages for yarn whose defining fibre is wool, fine animal hair, coarse animal hair, or horse hair and whose product identity falls within CPC 3.0 subclass 26340. It covers woollen or worsted preparation, spinning, twisting or gimping, winding, and the conditioning needed to place the declared yarn at the mill gate. Raw-wool scouring and yarn wet finishing are included only when performed within the reporting facility or otherwise controlled as foreground operations.

The PCR does not cover sewing thread; retail-packaged hand-knitting yarn classified outside CPC 26340; yarn defined by cotton, silk, vegetable fibre, or man-made fibre classifications; woven, knitted, tufted, or nonwoven fabric; garment manufacture; animal husbandry; fibre production; off-site transport; use; or end of life. Blended yarn is covered only when CPC 26340 remains the justified product classification and every constituent fibre is disclosed separately. For non-wool yarn, the data package must use one species-specific prepared-fibre flow for each actual fibre input; it must not reuse a wool flow or a collective animal-hair label.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.food-products-beverages-and-tobacco-textiles-apparel-and-leather-products.yarn-and-thread-woven-and-tufted-textile-fabrics.yarn-of-wool-not-put-up-for-retail-sale-yarn-of-fine-or-coarse-animal-hair-or-of-horse-3d239b59
classification_refs	CPC 3.0: 26340
covered_products	wool yarn not put up for retail sale; yarn of one declared fine animal-hair species; yarn of one declared coarse animal-hair species; horsehair yarn, including gimped horsehair yarn; qualifying blends classified to CPC 26340
excluded_products	sewing thread; yarn classified by another defining fibre category; fabric and nonwoven products; garments; unspecified mixed-fibre yarn without a defensible CPC 26340 classification
representative_product	finished wool yarn on a declared winding support, at the yarn mill gate
production_route	received prepared fibre or wool top; optional foreground raw-wool scouring; carding or combing as applicable; drawing and blending; spinning; twisting or gimping when applicable; winding; optional foreground yarn wet finishing
market_state	saleable mill-gate yarn with declared fibre species and composition, woollen or worsted system, yarn count, twist, moisture or conditioning basis, colour or undyed state, and winding form

3. Reference Flow

Field	Value
What	saleable yarn of wool, one declared fine or coarse animal-hair species, or horse hair
How much	1 kg net dry-conditioned yarn at the declared mill gate
How well	conforms to the declared fibre composition, spinning system, yarn count, twist or gimp construction, moisture or conditioning basis, colour state, and winding form
How long or cycle	one completed production batch through the declared yarn-manufacturing gate
reference_flow_link	Reference amount and Tiangong product flow below

Field	Value
Reference amount	1 kg
Reference product flow	Yarn of wool, not put up for retail sale, yarn of fine or coarse animal hair or of horse hair (including gimped horsehair yarn), whether or not put up for retail sale e4318719-55db-447b-8b6d-08a745a3dfb5
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	fibre species; mass fraction of every constituent fibre; woollen, worsted, or horsehair route; yarn count system and value; twist direction and level or gimp construction; dry-mass and moisture or conditioning basis; dyed or undyed state; winding support and net-versus-gross mass basis; production geography; reporting period; foreground gate

When constructing a foreground data package, all required qualifiers must be declared in dataset metadata, process notes, the reference-flow comment, the product description, or an equivalent field. The reference mass excludes the winding support and any outer packaging.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_yarn_mass	reference yarn	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Report net yarn mass on the declared dry-mass and moisture or conditioning basis; subtract winding supports and outer packaging.
constituent_fibre_mass	each fibre input	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Record every fibre species as a separate product input and reconcile the declared composition with batch input records.
utility_measurement	electricity, steam, and process water	flow-specific energy or mass property	kWh, kg, or another declared convertible unit	Preserve the metered unit and conversion factor, meter boundary, supply scenario, and allocation from shared meters before normalization.

5. System Boundary

The foreground boundary starts at receipt of the declared prepared fibre or wool top. It starts at receipt of greasy shorn wool only when raw-wool scouring is performed within the foreground system. It ends with net saleable yarn on its declared winding support at the mill gate. The boundary includes material losses, recovered fibre, process water, utilities, auxiliaries, winding supports, direct wastes, wastewaters, and measured direct elementary flows of every included foreground process.

Boundary Abstraction

Field	Value
declared_starting_condition	received prepared fibre or wool top; greasy shorn wool only for an included foreground scouring route
starting_condition_role	disclosed product input to the first foreground process
product_classification_scope	CPC 3.0 subclass 26340 at the output gate; upstream fibre inputs retain their own product identities
recursive_input_rule	an unfinished yarn input that is already within CPC 26340 remains an explicit product input with its own upstream dataset and stage qualifier; it is not silently merged with the reference output
upstream_dataset_requirement	every purchased fibre, electricity supply, steam or heat supply, chemical, winding support, and other product input requires an upstream dataset or an explicit unresolved identity disclosure
disclosure	declare fibre origin and species, recycled content when present, preparation state, included process route, shared-utility allocation, recovery destinations, waste treatment destinations, and excluded operations

Boundary Rules

rule_id	Applies to	Rule	source_ids
boundary_foreground_route	foreground yarn production	Include carding or combing as applicable, drawing and blending, spinning, twisting or gimping when applicable, winding, conditioning, and all direct exchanges controlled by the reporting facility.	eu-jrc-textiles-bref-2023; eu-textiles-bat-2022-2508; wiedemann-recycled-wool-lca-2022
boundary_conditional_scouring	raw-wool scouring	Include scouring only when greasy wool is received and scoured within the declared foreground gate; otherwise require an upstream dataset for the received prepared fibre.	eu-jrc-textiles-bref-2023; eu-textiles-bat-2022-2508
boundary_conditional_wet_finishing	yarn wet finishing	Include yarn washing, dyeing, or finishing only when it is required to produce the declared saleable yarn and is controlled within the foreground gate.	eu-jrc-textiles-bref-2023; eu-textiles-bat-2022-2508
boundary_no_hidden_extensions	all included processes	Add each actual chemical, colourant, salt, fuel, packaging component, waste, wastewater, and direct emission as its own atomic exchange; do not represent an unlisted group or selector as one flow.	eu-pef-recommendation-2021-2279

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
raw_wool_scouring	Raw-wool scouring	conditional	include when greasy shorn wool is scoured within the foreground system	foreground fibre preparation	kg scoured wool output
fibre_preparation_spinning_winding	Fibre preparation, spinning, and winding	required	always included for the reference yarn	foreground yarn manufacture	kg net saleable yarn output
yarn_wet_finishing	Yarn wet finishing	conditional	include when washing, dyeing, or finishing is required for the declared saleable yarn and is controlled within the foreground system	foreground wet processing	kg net finished yarn output

Process: Raw-wool scouring (raw_wool_scouring)

Inputs

Product flows

Greasy shorn wool (greasy_shorn_wool)

Greasy shorn wool is recorded only when the reporting facility performs raw-wool scouring.

• Selected flow: Shorn wool, greasy, including fleece-washed shorn wool bc0047e4-c6e8-4758-b86e-887af8a1f176
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured net greasy-wool mass entering the scouring batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg scoured wool output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_scouring_batch_records
• Sources: eu-textiles-bat-2022-2508

Scouring process water (scouring_process_water)

Water supplied to the scouring bowls and rinsing steps is recorded as one product input.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: metered or tank-balance water supplied to the scouring batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg scoured wool output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_scouring_batch_records
• Sources: eu-textiles-bat-2022-2508

Non-ionic scouring detergent (scouring_detergent)

The actual non-ionic wool-scouring detergent formulation is recorded separately from every other scouring chemical.

• Selected flow: Non-ionic wool-scouring detergent formulation
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: issued mass from batch formulation and stock records
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg scoured wool output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_scouring_batch_records
• Sources: eu-jrc-textiles-bref-2023

Scouring electricity (scouring_grid_electricity)

Grid electricity crossing the scouring process boundary is recorded for the declared medium-voltage supply scenario.

• Selected flow: Electricity, medium voltage, grid supply
• Flow property / unit: Energy / kWh
• Amount rule: metered electricity or documented allocation from a shared meter
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg scoured wool output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_scouring_batch_records
• Sources: eu-textiles-bat-2022-2508

Purchased scouring steam (scouring_purchased_steam)

Purchased steam is recorded only when this natural-gas-fired industrial supply scenario crosses the scouring boundary.

• Selected flow: Steam, purchased from a natural-gas-fired industrial boiler
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: metered steam mass or supplier invoice allocated to the scouring batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg scoured wool output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_scouring_batch_records
• Sources: eu-textiles-bat-2022-2508

Waste flows

No waste input is prescribed for this process.

Elementary flows

Record each measured direct resource extraction or emission as a separate elementary-flow row in the foreground data package.

Outputs

Product flows

Scoured wool (scoured_wool_output)

Scoured wool is the cleaned fibre output transferred to carding, combing, or an upstream/downstream dataset boundary.

• Selected flow: Scoured Wool 1f286780-8831-47b4-88dd-582d6b7f8947
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured net scoured-wool mass on the declared moisture basis
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg scoured wool output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_scouring_batch_records
• Sources: eu-textiles-bat-2022-2508

Recovered wool grease (recovered_wool_grease)

Recovered wool grease is recorded as one co-product only when it is physically recovered and leaves for beneficial use.

• Selected flow: Wool grease (lanolin)
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured recovered mass accepted as saleable or usable wool grease
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg scoured wool output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_scouring_batch_records
• Sources: eu-textiles-bat-2022-2508

Waste flows

Untreated wool-scouring wastewater (scouring_wastewater)

Untreated wastewater leaving scouring for treatment is recorded separately from sludge, recovered grease, or recycled internal water.

• Selected flow: Untreated wool-scouring wastewater
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: metered discharge mass or volume converted with a documented density
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg scoured wool output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_scouring_batch_records
• Sources: eu-textiles-bat-2022-2508

Elementary flows

Record each measured direct emission not carried in the wastewater as a separate elementary-flow row.

Process: Fibre preparation, spinning, and winding (fibre_preparation_spinning_winding)

Inputs

Product flows

Scoured wool for the woollen route (scoured_wool_input)

Scoured wool is recorded when it is the specific prepared-fibre input to the declared woollen route.

• Selected flow: Scoured Wool 1f286780-8831-47b4-88dd-582d6b7f8947
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured net mass issued to the production batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_spinning_batch_records
• Sources: wiedemann-recycled-wool-lca-2022

Wool top for the worsted route (wool_top_input)

Wool top is recorded instead of scoured loose wool when it is the specific prepared-fibre input to the declared worsted route.

• Selected flow: Wool Top a19fde0b-23f4-4ab7-9832-317affa7ab44
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured net wool-top mass issued to the production batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_spinning_batch_records
• Sources: eu-jrc-textiles-bref-2023

Spinning electricity (spinning_grid_electricity)

Grid electricity crossing the fibre-preparation, spinning, and winding boundary is recorded for the declared medium-voltage supply scenario.

• Selected flow: Electricity, medium voltage, grid supply
• Flow property / unit: Energy / kWh
• Amount rule: metered electricity or documented allocation from a shared meter
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_spinning_batch_records
• Sources: eu-textiles-bat-2022-2508; wiedemann-recycled-wool-lca-2022

Purchased humidification steam (spinning_purchased_steam)

Purchased steam is recorded only when this natural-gas-fired industrial supply scenario is used for humidification or conditioning and crosses the process boundary.

• Selected flow: Steam, purchased from a natural-gas-fired industrial boiler
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: metered steam mass or supplier invoice allocated to the production batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_spinning_batch_records
• Sources: wiedemann-recycled-wool-lca-2022

Spinning process water (spinning_process_water)

Water directly supplied for fibre conditioning or humidification is recorded when it crosses the process boundary.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: metered or tank-balance water supplied to the production batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_spinning_batch_records
• Sources: wiedemann-recycled-wool-lca-2022

Synthetic ester spinning lubricant (spinning_lubricant)

The actual synthetic ester textile spinning lubricant is recorded as one formulated product; mineral oil must not be substituted into this row.

• Selected flow: Synthetic ester textile spinning lubricant
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: issued mass from batch formulation and stock records
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_spinning_batch_records
• Sources: eu-textiles-bat-2022-2508; wiedemann-recycled-wool-lca-2022

Cardboard winding core (cardboard_winding_core)

The cardboard tube or paper core that leaves with the yarn is recorded separately from the net yarn mass.

• Selected flow: Cardboard tube or Paper core 78bf7f6e-519e-4b3d-82f0-eda15b2fee61
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured issued mass of winding cores retained with saleable yarn
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_spinning_batch_records
• Sources: wiedemann-recycled-wool-lca-2022

Waste flows

No waste input is prescribed for this process.

Elementary flows

Record each measured direct resource extraction or emission as a separate elementary-flow row in the foreground data package.

Outputs

Product flows

Saleable wool or animal-hair yarn (saleable_yarn_output)

The output is the net yarn mass that satisfies the reference-flow qualifiers at the declared mill gate.

• Selected flow: Yarn of wool, not put up for retail sale, yarn of fine or coarse animal hair or of horse hair (including gimped horsehair yarn), whether or not put up for retail sale e4318719-55db-447b-8b6d-08a745a3dfb5
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured net yarn mass after excluding winding cores and outer packaging, normalized to 1 kg reference output
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_spinning_batch_records
• Sources: unsd-cpc-3-0-26340

Waste flows

Wool spinning waste (wool_spinning_waste)

Wool spinning waste is recorded once as the mass leaving carding, drawing, spinning, or winding; its recovery or disposal destination is declared separately.

• Selected flow: wool spinning waste db23708c-5c2f-4b7e-9098-910948275caa
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: weighed waste mass by batch and destination
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_spinning_batch_records
• Sources: wiedemann-recycled-wool-lca-2022

Elementary flows

Record each measured direct emission as a separate elementary-flow row.

Process: Yarn wet finishing (yarn_wet_finishing)

Inputs

Product flows

Unfinished wool yarn (unfinished_yarn_input)

Unfinished yarn is recorded as a same-category product input when wet finishing is a separate controlled foreground stage.

• Selected flow: Yarn of wool, not put up for retail sale, yarn of fine or coarse animal hair or of horse hair (including gimped horsehair yarn), whether or not put up for retail sale e4318719-55db-447b-8b6d-08a745a3dfb5
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured net unfinished-yarn mass entering the wet-finishing batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net finished yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_wet_finishing_batch_records
• Sources: eu-jrc-textiles-bref-2023

Wet-finishing process water (wet_finishing_process_water)

Water supplied to washing, dyeing, rinsing, or finishing baths is recorded as one product input.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: metered or tank-balance water supplied to the wet-finishing batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net finished yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_wet_finishing_batch_records
• Sources: eu-jrc-textiles-bref-2023

Wet-finishing electricity (wet_finishing_grid_electricity)

Grid electricity crossing the wet-finishing boundary is recorded for the declared medium-voltage supply scenario.

• Selected flow: Electricity, medium voltage, grid supply
• Flow property / unit: Energy / kWh
• Amount rule: metered electricity or documented allocation from a shared meter
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net finished yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_wet_finishing_batch_records
• Sources: eu-textiles-bat-2022-2508

Purchased wet-finishing steam (wet_finishing_purchased_steam)

Purchased steam is recorded only when this natural-gas-fired industrial supply scenario crosses the wet-finishing boundary.

• Selected flow: Steam, purchased from a natural-gas-fired industrial boiler
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: metered steam mass or supplier invoice allocated to the wet-finishing batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net finished yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_wet_finishing_batch_records
• Sources: eu-jrc-textiles-bref-2023

Acetic acid (wet_finishing_acetic_acid)

Acetic acid is recorded only when the actual wet-finishing recipe uses this chemical; it is not a proxy for any other acid or auxiliary.

• Selected flow: Acetic acid e2450fd4-acdc-4ab3-b8e3-269f8882a44e
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: issued mass from batch recipe and stock records
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net finished yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_wet_finishing_batch_records
• Sources: wiedemann-recycled-wool-lca-2022

Every actual dye, salt, surfactant, reducing or oxidizing agent, softener, and other chemical used by the declared recipe must be added to the foreground data package as its own named atomic product-flow row.

Waste flows

No waste input is prescribed for this process.

Elementary flows

Record each measured direct resource extraction or emission as a separate elementary-flow row.

Outputs

Product flows

Finished saleable yarn (finished_yarn_output)

The output is the net wet-finished yarn mass satisfying the reference-flow qualifiers.

• Selected flow: Yarn of wool, not put up for retail sale, yarn of fine or coarse animal hair or of horse hair (including gimped horsehair yarn), whether or not put up for retail sale e4318719-55db-447b-8b6d-08a745a3dfb5
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured net finished-yarn mass normalized to 1 kg reference output
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1 kg net finished yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_wet_finishing_batch_records
• Sources: unsd-cpc-3-0-26340

Waste flows

Untreated wool-yarn dyeing wastewater (wet_finishing_wastewater)

Untreated wastewater leaving the wet-finishing process for treatment is recorded separately from recovered bath liquor or sludge.

• Selected flow: Untreated wool-yarn dyeing wastewater
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: metered discharge mass or volume converted with a documented density
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net finished yarn output
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_wet_finishing_batch_records
• Sources: eu-jrc-textiles-bref-2023

Elementary flows

Record each measured direct emission not carried in wastewater as a separate elementary-flow row.

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_subdivide_first	all multifunctional foreground operations	Subdivide by production line, batch, or process step and use directly measured relationships before applying allocation.	eu-pef-recommendation-2021-2279
allocation_shared_utilities	shared electricity, steam, water, and auxiliaries	Allocate shared records using a documented causal driver such as metered consumption, machine operating time, or batch mass; disclose the driver and retain the unallocated source record.	eu-pef-recommendation-2021-2279
allocation_recovered_wool_grease	scoured wool and recovered wool grease	Keep recovered wool grease as an explicit output. If subdivision and causal assignment cannot resolve shared burdens, apply and disclose a justified physical or economic allocation basis and report a sensitivity case; do not hide the output through a net credit.	eu-pef-recommendation-2021-2279; eu-textiles-bat-2022-2508
allocation_spinning_waste	recovered or disposed wool spinning waste	Record the full waste mass and destination. Any recycling or avoided-product credit belongs to the declared downstream modelling method and must not be embedded in the foreground exchange amount.	eu-pef-recommendation-2021-2279; wiedemann-recycled-wool-lca-2022

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_scouring_batch_records	raw_wool_scouring	all scouring inputs and outputs	batch record, meter record, stock issue, invoice, weighbridge record, discharge record	batch_id; start/end time; input and output flow identity; gross, tare, and net mass; moisture basis; water meter; electricity meter; steam meter or invoice; detergent issue; grease recovery; wastewater quantity; waste destination	reconcile signed production, utility, stock, and discharge records to one batch identifier	kg, kWh, or declared source unit	each scouring batch and each relevant meter period	dates spanning the declared reporting period	every included scouring line and shared utility boundary	sum verified records, allocate shared meters with the documented causal driver, then normalize to measured scoured-wool output	calibration status; invoice or stock reconciliation; batch sign-off; missing-record log
cp_spinning_batch_records	fibre_preparation_spinning_winding	all fibre-preparation, spinning, winding, product, and waste exchanges	batch record, stock issue, meter record, core issue, product weighment, waste weighment	batch_id; fibre species and composition; spinning system; yarn count; twist; input mass and moisture; electricity; steam; process water; lubricant issue; core mass; net yarn mass; waste mass and destination	link production orders, meters, stock records, product weighments, and waste records to the same yarn batch	kg, kWh, or declared source unit	each production batch and each relevant meter period	dates spanning the declared reporting period	every included carding, combing, drawing, spinning, twisting, gimping, and winding line	sum verified records, subtract tare and core mass from reference yarn, allocate shared utilities with the documented driver, then normalize to net yarn output	scale and meter calibration; composition certificate; production-order closure; stock and waste reconciliation
cp_wet_finishing_batch_records	yarn_wet_finishing	all yarn wet-finishing inputs and outputs	recipe, batch record, stock issue, meter record, product weighment, discharge record	batch_id; unfinished-yarn mass; recipe chemical identities and issued masses; water; electricity; steam; finished-yarn mass; colour state; wastewater quantity; treatment destination	reconcile recipe, stock, meter, product, and discharge records to one wet-finishing batch	kg, kWh, or declared source unit	each wet-finishing batch and each relevant meter period	dates spanning the declared reporting period	every included yarn washing, dyeing, rinsing, and finishing line	sum verified records, allocate shared utilities with the documented driver, then normalize to net finished-yarn output	recipe approval; scale and meter calibration; stock reconciliation; colour and product release record; discharge record

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
normalize_mass_exchange	each mass-based exchange	measured exchange mass / measured net reference-stage output mass × 1 kg reference output	exchange mass; net process or reference output mass	kg exchange per kg output
normalize_energy_exchange	each energy-based exchange	metered or causally allocated energy / measured net reference-stage output mass × 1 kg reference output	metered energy; shared-meter allocation driver when applicable; net output mass	declared energy unit per kg output	eu-textiles-bat-2022-2508
convert_volume_to_mass	process water or wastewater recorded by volume	measured volume × documented batch temperature density; retain the original volume record and density source	measured volume; density; temperature when material	kg water or wastewater
net_reference_yarn_mass	yarn on winding supports	gross wound package mass − measured winding-support mass − other non-yarn tare	gross package mass; winding-support mass; tare mass	kg net reference yarn
foreground_mass_reconciliation	each included process	reconcile all measured product inputs and outputs, separately measured wastes, stock changes, and moisture changes; investigate and disclose every unexplained imbalance rather than forcing closure	verified batch masses; stock change; measured moisture basis	signed mass-reconciliation record	eu-pef-recommendation-2021-2279

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_product_identity	reference yarn	CPC 26340 scope, exact Tiangong reference-flow UUID, fibre species and composition, yarn system, count, twist or gimp construction, moisture basis, colour state, winding form, geography, period, and gate are all declared.	product specification; composition certificate; production order; dataset metadata
dq_flow_identity	every inventory exchange	Each exchange names one physical or chemical flow. UUID-bearing rows must match the verified Tiangong type and property; unresolved rows remain explicit and may not borrow a broader or semantically different UUID.	flow identity review; Tiangong lookup; unresolved-identity disclosure
dq_temporal_representativeness	all foreground records	The reporting period must represent the declared technology and product mix; start and end dates, downtime, abnormal batches, and substitutions are disclosed.	dated batch, meter, invoice, and maintenance records
dq_completeness	all included processes	Include all category-defining fibre inputs, utilities, auxiliaries, winding supports, product outputs, wastes, wastewaters, and measured direct elementary flows within the declared cutoff; disclose the cutoff and every excluded flow.	process-flow reconciliation; stock reconciliation; completeness checklist; exclusion log
dq_consistency	normalization and shared records	Use the same dry-mass basis, reference gate, conversion factors, and shared-record allocation drivers across the reporting period.	calculation workbook; meter map; conversion record; internal review
dq_uncertainty_disclosure	missing or allocated records	Mark substituted, estimated, or allocated records; state method, reason, affected share, and sensitivity. No AI-generated quantity range is a foreground record.	gap log; allocation record; sensitivity result

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_reference_identity	reference flow	The reference product UUID is e4318719-55db-447b-8b6d-08a745a3dfb5, its type is Product flow, its CPC leaf is 26340, its reference property is Mass 93a60a56-a3c8-11da-a746-0800200b9a66, and the normalized amount is 1 kg net yarn.	unsd-cpc-3-0-26340
validate_required_qualifiers	reference yarn	Reject a data package that omits fibre species, composition, spinning route, yarn count, twist or gimp construction, moisture basis, colour state, winding form, geography, reporting period, or foreground gate.	unsd-cpc-3-0-26340
validate_atomic_inventory	process inventory	Reject any inventory card that combines multiple fibres, chemicals, electricity scenarios, steam or heat supplies, fuels, packaging components, wastes, wastewaters, or elementary flows, or that uses a selector or placeholder as the selected flow.	eu-pef-recommendation-2021-2279
validate_non_wool_route	fine animal-hair, coarse animal-hair, or horsehair yarn	Require one species-specific prepared-fibre input per actual fibre; reject use of Scoured Wool, Wool Top, or a collective animal-hair identity as a proxy.	unsd-cpc-3-0-26340
validate_unresolved_identity	rows without a confirmed flow UUID	Treat validation as inconclusive until each used unresolved row is bound to one state_code 100 Tiangong flow with matching type, name semantics, property, and unit; do not copy a rejected candidate UUID.
validate_foreground_amounts	all inventory amounts	Require collected records or calculations linked to a collection protocol. Reject an AI estimate, an uncited default, or a literature value presented as a measured foreground amount.	eu-pef-recommendation-2021-2279
validate_route_completeness	included foreground processes	Confirm every required process and every applicable conditional process is present, actual recipe chemicals are separate rows, shared utilities are allocated transparently, and all waste and wastewater destinations are declared.	eu-jrc-textiles-bref-2023; eu-textiles-bat-2022-2508
validate_mass_reconciliation	each included process	Require a signed mass reconciliation and disclosure of every unresolved imbalance, moisture adjustment, stock change, recovered output, and waste stream.	eu-pef-recommendation-2021-2279
validate_allocation	multifunctional operations	Require subdivision or a documented causal driver first; where residual allocation remains, require the selected basis, justification, and sensitivity disclosure.	eu-pef-recommendation-2021-2279

10. Published Dataset Profile

Field	Value
dataset_role	foreground unit-process data package and aggregated yarn-mill dataset
downstream_use	secondary_dataset; background_dataset
allowed_use	production of CPC 26340 wool, declared animal-hair, or horsehair yarn when reference qualifiers, fibre identity, route, geography, period, and gate match
excluded_use	raw-fibre production; generic textile yarn without fibre identity; fabric or garment manufacture; retail packaging; another CPC category; comparative assertion without a compatible reviewed study design
required_metadata	canonical PCR id; reference-flow UUID and property; fibre species and composition; virgin or recycled content; spinning system; yarn count; twist or gimp construction; moisture basis; colour state; winding form; geography; reporting period; technology; foreground gate; included conditional processes; data owners
required_quality_disclosure	source records and coverage; meter and scale calibration; shared-record allocation; unresolved flow identities; substitutions; cutoffs; exclusions; mass reconciliation; waste and wastewater destinations; uncertainty and sensitivity
update_trigger	change in fibre species or composition, CPC identity, reference-flow UUID, spinning system, wet-processing route, energy supply, allocation method, foreground gate, major technology, or source evidence that materially changes the rules

11. Data Sources

Source id	Type	Reference	Used for
unsd-cpc-3-0-26340	official_guidance	United Nations Statistics Division, Central Product Classification Version 3.0, subclass 26340, https://unstats.un.org/unsd/classifications/Econ/Structure/Detail/EN/2100/26340 (retrieved 2026-08-12)	product scope, classification identity, reference-product validation
eu-jrc-textiles-bref-2023	official_guidance	European Commission Joint Research Centre, Best Available Techniques Reference Document for the Textiles Industry, 2023, https://bureau-industrial-transformation.jrc.ec.europa.eu/reference/textiles-industry (retrieved 2026-08-12)	textile process decomposition, fibre preparation, pretreatment, dyeing, finishing, utility and waste coverage
eu-textiles-bat-2022-2508	official_guidance	Commission Implementing Decision (EU) 2022/2508 establishing BAT conclusions for the textiles industry, http://data.europa.eu/eli/dec_impl/2022/2508/oj (retrieved 2026-08-12)	raw-wool scouring, wool-grease recovery, spinning lubricant rule, energy and resource records
wiedemann-recycled-wool-lca-2022	literature	Wiedemann, S. G.; Biggs, L.; Clarke, S. J.; Russell, S. J. (2022), Reducing the Environmental Impacts of Garments through Industrially Scalable Closed-Loop Recycling: Life Cycle Assessment of a Recycled Wool Blend Sweater, Sustainability 14(3), 1081, https://doi.org/10.3390/su14031081	empirical process decomposition and identification of spinning, water, steam, lubricant, winding-core, fibre-waste, and wet-finishing exchanges; no study quantities are adopted as PCR defaults
eu-pef-recommendation-2021-2279	official_guidance	Commission Recommendation (EU) 2021/2279 on the use of the Environmental Footprint methods, http://data.europa.eu/eli/reco/2021/2279/oj (retrieved 2026-08-12)	functional-unit, system-boundary, completeness, company-specific data, allocation, data-quality, and validation rules