Dry-combed wool noils

1. Scope and Applicability

This PCR applies to undyed sheep-wool short fibres separated by mechanical worsted combing of received scoured carded sliver, then dry segregated, inspected and packed for sale as noils. Its manufacturing foreground begins at carded-sliver receipt and ends at accepted packed noils, excluding packaging from reference mass. Woolmark describes gilling and combing as distinct stages and identifies the separated short fibre as noil; no fixed number of passes is required here.

Fine-animal-hair noils, wool/synthetic blends, silk or cotton noils, garnetted/reclaimed fibre, yarn and carding-only waste are excluded. Scouring, carbonising, bleaching, dyeing, chemical shrink-resist treatment, added processing lubricant, active humidification and heated drying are outside this dry-route method. A site performing any such operation must develop explicit additional process-specific inventories and evidence before claiming coverage. Passive equilibration to the declared weighing condition is included. Downstream woollen spinning or consumer use is excluded. The product is a textile intermediate, not a lifetime functional service; no cradle-to-gate completeness is implied.

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.dry-combed-wool-noils
classification_refs	CPC 3.0 26140; narrower
covered_products	Undyed sheep-wool combing noils from the declared dry route
excluded_products	Fine-animal-hair noils; dyed or carbonised noils; reclaimed fibres; spinning waste; blended noils
representative_product	One specified lot of dry-sorted sheep-wool noils in woven polypropylene sacks
production_route	Received carded sliver → pre-combing gilling → mechanical combing with top/noil separation → noil dry segregation and inspection → weighing and packing
market_state	Unspun short fibre sold to textile processors; declared moisture and purchaser specification

3. Reference Flow

Field	Value
What	Supply sheep-wool noils as a specified short-fibre textile feedstock
How much	1 kg accepted net noils at the declared gate
How well	Lot-specific species/composition, length distribution, diameter, vegetable contamination and moisture; verified against purchaser acceptance records
How long or cycle	One manufacturing reporting campaign; no service-life or downstream spinning performance equivalence
reference_flow_link	reference_product_noils

Field	Value
Reference amount	1
Reference product flow	Undyed sheep-wool combing noils, dry sorted and packed
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	Sheep-wool composition; input scouring/carding state; noil origin; fibre length and diameter measurements or declared test gaps; vegetable matter; moisture measurement and mass basis; existing lubricant; excluded treatment flags; output acceptance specification; reporting period; site; packaging configuration; allocation method and separation gate

Declare every required qualifier in the foreground dataset. The reference product and matching output row deliberately retain the same exact name while their public identity remains unresolved.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass	reference product	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Use accepted net noil mass, excluding all sacks and containers. Collect using cp_noil; preserve measured mass and moisture condition.
moisture_basis	all fibre mass balances	Mass	kg	Report measured moisture on wet-mass basis. Dry mass = measured net mass × (1 − measured moisture fraction). Reconcile feed, top, noil and fibre reject balances on dry matter; retain actual dispatch mass for the 1 kg reference. Never adopt a default commercial regain.
energy_conversion	electricity rows	Net calorific value	MJ	Keep raw metered kWh; convert using 1 kWh = 3.6 MJ. The verified electricity flow uses its original energy property, never Mass.
package_measurement	polypropylene_sack	Mass	kg	Weigh actual empty sacks on a calibrated scale and reconcile issued count, reuse and unused returns; do not infer mass from nominal capacity.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Scoured undyed carded sheep-wool sliver at reporting mill receipt, with prior processing and moisture declared
starting_condition_role	Purchased intermediate; start of the joint dry-combing foreground
product_classification_scope	Only sheep-wool dry-combing noils within CPC 26140; not fine animal hair or every classified route
recursive_input_rule	Purchased noils belong to another starting route and must be declared separately with their original allocated upstream burden; no zero-burden recursive noil average
upstream_dataset_requirement	Link carded sliver with sheep husbandry, shearing, scouring and carding upstream; link actual electricity, sacks, lubricant and off-site treatment without duplicate foreground steps
disclosure	Factory gate, all stages, received state, noil and top yields, moisture basis, stock changes, allocations, environmental discharge points, optional exchanges, excluded routes and upstream gaps

rule_id	Applies to	Rule	source_ids
boundary_joint	joint_combing	Include receipt, handling, pre-combing gilling, mechanical combing, common conveying and dust collection through the physical top/noil separation gate. Post-separation top finishing belongs solely to top.	woolmark-topmaking
boundary_noil	noil_finishing	Include dry noil segregation, acceptance tests, passive conditioning, weighing, compression where used and actual packing. Fresh wet treatments are not silently added.	woolmark-topmaking
boundary_environment	environmental interfaces	Electricity is a technosphere input; no boiler fuel or combustion emissions are presumed. Captured dust is a waste transfer; only documented external air releases are elementary flows. No process water or wastewater is implied by this dry route. If water crosses the actual boundary, split supplied water, abstraction, discharge and treatment and review the expanded route.
boundary_disclosure	dataset completeness	Disclose transport, capital equipment, maintenance consumables and shared services included or omitted, with measured relevance and justification. Never claim cradle-to-gate completeness unless all required upstream datasets and transport links are separately assembled and assessed.	ghg-product-2011

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
joint_combing	Receipt, gilling and joint combing	required	Declared carded-sliver dry route	Joint top/noil separation with original campaign ledger	per 1 kg reference flow
noil_finishing	Dry noil finishing and dispatch	required	Every accepted noil lot; packing conditional on actual configuration	Noil-only operations after separation	per 1 kg reference flow

Every row represents one physically identified exchange. Conditional rows are included only when present; absence needs route evidence. The future dataset shall add separate atomic rows for additional measured material, packaging, waste or emission species, never a collection label. Internal noil transfer rows cancel in the combined system. Physical co-product output masses remain unallocated in the reconciliation ledger; attributed exchanges and burdens are stored separately.

Process: Receipt, gilling and joint combing (joint_combing)

Inputs

Product flows

Scoured undyed carded sheep-wool sliver (carded_wool_input)

Required feed at mill receipt. Record sheep-wool composition, existing processing oil, moisture, carding history and supplier dataset. Farm-gate carded-fibre identity is not imposed on this mill-received intermediate.

• Selected flow: Scoured undyed carded sheep-wool sliver
• Flow property / unit: Mass / kg
• Amount rule: Measured feed attributable to noils per reference flow; retain the unallocated campaign feed and apply allocation_shared before dividing by accepted noil mass.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_joint
• Sources: woolmark-topmaking

Alternating current (joint_electricity)

Meter receiving, pre-combing gilling, combing, conveying and shared dust extraction separately where possible. This flow identifies use-point energy, not a grid mix; link a site-appropriate supply dataset.

• Selected flow: Alternating current 455f0ef5-6118-4f2b-a3f5-1f75e0afe3ca
• Flow property / unit: Net calorific value / MJ
• Amount rule: Metered allocated electricity per reference flow; express meter data in MJ under section 4.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_energy
• Sources: woolmark-topmaking

Mineral-base machine lubricating oil (mineral_machine_oil)

Conditional: only where maintenance records establish mineral-base oil consumption attributable to this line. Processing lubricant already in purchased sliver is not another input. Synthetic oil requires its own specific row.

• Selected flow: Mineral-base machine lubricating oil
• Flow property / unit: Mass / kg
• Amount rule: Measured attributable lubricant consumption per reference flow; apply allocation_shared to common-line consumption.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_auxiliary
• Sources: woolmark-topmaking

Outputs

Product flows

Unbaled undyed wool combing noils (unbaled_noils_output)

Required short-fibre stream sent to noil segregation. An internal transfer, not a second saleable reference output; retain full physical yield even when burdens are allocated.

• Selected flow: Unbaled undyed wool combing noils
• Flow property / unit: Mass / kg
• Amount rule: Measured internal transfer per reference flow on the declared moisture basis; do not apply a burden allocation share to physical output mass.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_joint
• Sources: woolmark-topmaking

Wool Top (combed_wool_coproduct)

Record the long-fibre combed sliver co-product at separation, before downstream re-gilling or spinning. The official Chinese flow name is retained; this row is unspun top, not yarn.

• Selected flow: Wool Top a19fde0b-23f4-4ab7-9832-317affa7ab44
• Flow property / unit: Mass / kg
• Amount rule: Measured co-product output per reference flow; keep full unallocated physical mass in the joint-production ledger.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_joint
• Sources: woolmark-topmaking

Waste flows

Separated vegetable matter from wool combing (vegetable_reject)

Conditional separately collected burr/seed plant residue; declare composition, contamination and disposal destination. Do not label marketable fibre noils as this waste.

• Selected flow: Separated vegetable matter from wool combing
• Flow property / unit: Mass / kg
• Amount rule: Weighed attributable plant residue per reference flow; retain gross residue and allocation evidence.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_residue
• Sources: woolmark-topmaking

Captured wool-fibre dust (captured_wool_dust)

Conditional dust removed from collection equipment and sent for off-site treatment; weigh collected solids separately from airborne releases. Recovered usable fibre is a co-product instead and requires its own row.

• Selected flow: Captured wool-fibre dust
• Flow property / unit: Mass / kg
• Amount rule: Weighed attributable captured wool dust per reference flow; exclude filter tare.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_residue
• Sources: woolmark-topmaking

Spent mineral-base machine lubricating oil (used_mineral_oil)

Conditional where mineral-oil maintenance generates a collected waste-oil stream. Keep oil retained in equipment and stock movements in the balance.

• Selected flow: Spent mineral-base machine lubricating oil
• Flow property / unit: Mass / kg
• Amount rule: Measured attributable spent oil per reference flow; no assumed loss fraction.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_auxiliary
• Sources: woolmark-topmaking

Elementary flows

Particulate matter, particle size unspecified (airborne_dust)

Conditional only on measured or documented releases to ambient air with unspecified subcompartment and particle-size fraction. Indoor recirculation is not an environmental exchange. If PM10 or another fraction is known, use an independently verified specific row instead, without overlap.

• Selected flow: Particulate matter, particle size unspecified 0ce3dedb-caca-407b-a856-a90470eb8ec0
• Flow property / unit: Mass / kg
• Amount rule: Measured attributable air release per reference flow from emission concentration, exhaust volume and operating duration; missing monitoring is an explicit data gap, not zero.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_air
• Sources: woolmark-topmaking

Process: Dry noil finishing and dispatch (noil_finishing)

Inputs

Product flows

Unbaled undyed wool combing noils (unbaled_noils_input)

Same internal transfer as unbaled_noils_output, reconciled by batch and moisture basis. Do not purchase it again in the combined system.

• Selected flow: Unbaled undyed wool combing noils
• Flow property / unit: Mass / kg
• Amount rule: Measured transfer per reference flow; reconcile with unbaled_noils_output.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_noil
• Sources:

Alternating current (finishing_electricity)

Noil-only dry separation, inspection, compression and packing electricity. Assign directly to noils; no further top/noil allocation.

• Selected flow: Alternating current 455f0ef5-6118-4f2b-a3f5-1f75e0afe3ca
• Flow property / unit: Net calorific value / MJ
• Amount rule: Metered noil-only electricity per reference flow; express meter data in MJ under section 4.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_energy
• Sources:

Woven polypropylene noil packing sack (polypropylene_sack)

Conditional for this exact packaging configuration. Measure empty sack mass, used count and reuse history; no fixed bag capacity. Other packaging components require separate rows.

• Selected flow: Woven polypropylene noil packing sack
• Flow property / unit: Mass / kg
• Amount rule: Measured sack consumption per reference flow; sum actual empty sack mass, excluding product mass and reusable containers not consumed in the campaign.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_pack
• Sources:

Outputs

Product flows

Undyed sheep-wool combing noils, dry sorted and packed (reference_product_noils)

Accepted saleable short-fibre product, excluding packaging. Acceptance is against the declared purchaser specification; no universal fibre length, diameter, contaminant limit or health approval is asserted.

• Selected flow: Undyed sheep-wool combing noils, dry sorted and packed
• Flow property / unit: Mass / kg
• Amount rule: 1 kg
• Value mode: fixed_value
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_noil
• Sources:

Waste flows

Rejected undyed wool-noil fibre (rejected_noil_fibre)

Conditional nonmarketable fibre removed during final inspection and transferred for treatment; record reason and destination. Rework within the line is an internal flow and does not cross this boundary.

• Selected flow: Rejected undyed wool-noil fibre
• Flow property / unit: Mass / kg
• Amount rule: Measured rejected fibre per reference flow; include stock changes and exclude internal rework counted twice.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_noil
• Sources:

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_subdivision	joint_combing; noil_finishing	First separate metered noil-only activities and top-only activities. Attribute noil-only sorting and packing directly to noils. Noil is not automatically burden-free because it is a short-fibre by-product.	ghg-product-2011; woolmark-topmaking
allocation_shared	joint inputs and burdens	For inseparable common operations, justify an underlying physical relationship before choosing a physical allocation. Mass fraction alone is not evidence of causality. If physical allocation cannot be supported, document contemporaneous gate prices and quantities for top, saleable noils and each other marketable co-product and justify economic allocation. Economic share a_noil = noil gate value / sum of all co-product gate values, using consistent currency, period and moisture basis. Retain prices, outputs, method and sensitivity to a plausible alternative. No default noil/top price ratio is permitted.	ghg-product-2011
allocation_balance	co-product and waste ledgers	Apply one coherent share to common upstream carded-sliver burdens and common-stage activity, without allocating downstream top finishing to noils. Shares sum to one across marketable outputs. Retain waste treatment burdens with their generating operation; do not create negative credits for assumed replacement of virgin wool. Gross physical outputs are not shrunk by the burden share.	ghg-product-2011

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

Preserve campaign totals for each protocol; aggregation divides the attributable amount by accepted net noil mass in kg and reports per 1 kg reference flow. Physical joint-product quantities are normalized without burden allocation. Retain raw and normalized records separately.

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_joint	joint_combing	feed and separated outputs	lot weighing	lot; species; received state; net feed; top mass; unbaled noil mass; stock movements; measured moisture; existing oil	Calibrated scale and lot-linked moisture tests at receipt and separation; reconcile supplier and mill records	kg	each lot	Complete declared campaign covering all included shifts; disclose seasonality and missing records	Named mill and actual included stages	per 1 kg reference flow	Calibration; traceable lot records; reconciliation; gap assessment
cp_noil	noil_finishing	noil transfer, acceptance and reject	lot weighing and inspection	lot; transferred mass; accepted net noil mass; reject mass; tare; moisture; specification; stock changes	Weigh on calibrated scales excluding sacks; preserve actual measured moisture and purchaser inspection records	kg	each lot	Complete declared campaign covering all included shifts; disclose seasonality and missing records	Named mill and actual included stages	per 1 kg reference flow	Calibration; traceable lot records; reconciliation; gap assessment
cp_energy	joint_combing; noil_finishing	electricity	meter readings	stage; meter ID; start and end kWh; operating hours; idle time; allocation share; supplier	Dedicated meters or documented tested submetering balance; separate noil-only from common electricity	kWh	each shift and campaign	Complete declared campaign covering all included shifts; disclose seasonality and missing records	Named mill and actual included stages	per 1 kg reference flow	Calibration; traceable lot records; reconciliation; gap assessment
cp_auxiliary	joint_combing	mineral oil and spent oil	maintenance records	oil identity; issued mass; retained stock; collected spent mass; destination; shared-line hours	Inventory reconciliation and weighed waste containers; confirm mineral-base composition from supplier records	kg	each maintenance event	Complete declared campaign covering all included shifts; disclose seasonality and missing records	Named mill and actual included stages	per 1 kg reference flow	Calibration; traceable lot records; reconciliation; gap assessment
cp_residue	joint_combing	plant residue and captured fibre dust separately	weighed transfer records	separate stream ID; gross mass; tare; moisture; composition; destination	Weigh each separate stream and retain waste manifests; avoid mixing airborne and collected dust	kg	each removal event	Complete declared campaign covering all included shifts; disclose seasonality and missing records	Named mill and actual included stages	per 1 kg reference flow	Calibration; traceable lot records; reconciliation; gap assessment
cp_air	joint_combing	external particulate release	emission monitoring	outlet; discharge medium; size fraction; concentration; exhaust volume; duration; control status	Representative monitoring at actual external outlet; reconcile test duration and campaign exhaust records	kg	representative operating conditions and campaign	Complete declared campaign covering all included shifts; disclose seasonality and missing records	Named mill and actual included stages	per 1 kg reference flow	Calibration; traceable lot records; reconciliation; gap assessment
cp_pack	noil_finishing	polypropylene sacks	packaging consumption	configuration; empty sack mass; issued count; returns; reuse history	Weigh actual empty sacks; reconcile production issues and returns; keep every component separate	kg	each configuration and campaign	Complete declared campaign covering all included shifts; disclose seasonality and missing records	Named mill and actual included stages	per 1 kg reference flow	Calibration; traceable lot records; reconciliation; gap assessment
cp_allocation	joint_combing	joint-production allocation	gate value and causal evidence	all marketable outputs; dry and dispatch mass; prices; currency; period; gate; method; causal test	Retain same-period sales/transfer prices at separation and physical study where used; exclude top downstream value added	kg; currency	each campaign and price period	Complete declared campaign covering all included shifts; disclose seasonality and missing records	Named mill and actual included stages	per 1 kg reference flow	Calibration; traceable lot records; reconciliation; gap assessment

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
campaign_normalization	all inventory rows	Attributable campaign exchange / accepted net noil mass in kg; output per 1 kg reference flow. Keep gross joint masses and the allocation ledger separately.	cp_joint; cp_noil; cp_energy; cp_auxiliary; cp_residue; cp_air; cp_pack; cp_allocation	exchange amount per reference flow
energy_conversion	joint_electricity; finishing_electricity	Metered kWh × 3.6 = MJ; preserve meter readings and apply attribution before campaign normalization.	cp_energy	MJ per reference flow
moisture_reconciliation	carded_wool_input; unbaled_noils_output; unbaled_noils_input; combed_wool_coproduct; reference_product_noils; rejected_noil_fibre	Dry mass = net wet mass × (1 − measured wet-basis moisture fraction). Compare opening stocks + input against outputs + closing stocks on dry basis and explain residuals.	cp_joint; cp_noil; cp_residue	dry-matter balance; measured reference mass preserved

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	fibre and route	Verify sheep-wool source, prior scouring/carding, absence of excluded treatments, and purchaser acceptance; do not substitute a fine-hair route.	Supplier declarations and test records
dq_completeness	all exchanges	Record yield, stock movements, rejects, utilities, maintenance and discharge interfaces; distinguish absent, unmeasured and excluded. No default formula, temperature, energy, yield or loss.	Full campaign ledger and gap register
dq_uncertainty	measurements and allocations	Disclose calibration, moisture testing, representative emission monitoring, allocation price period, uncertainty and sensitivity. No generic quality approval follows from compliance with this PCR.	Instrument and allocation evidence

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_scope	dataset	Require all reference qualifiers and exact dry-route starting state; flag fine hair, wet treatment or yarn manufacture as uncovered.	woolmark-topmaking
validate_balance	mass and internal transfers	Verify positive accepted net noil denominator, identical EN/ZH reference row, calibrated weighing, moisture conversion, stock reconciliation and cancellation of internal noil transfer. Investigate unexplained mass discrepancies; no invented tolerance.
validate_allocation	joint ledger	Verify separation gate, all marketable outputs, directly attributed stages, evidence for common allocation and shares summing to one. Reject zero-burden noils without a separately justified method.	ghg-product-2011
validate_interfaces	flow identities and emissions	Match exact property, unit, environmental compartment and route for every identity. Missing emission monitoring is inconclusive, not zero. Unresolved identities remain declared gaps; no substitution by spinning waste or generic raw wool.

10. Published Dataset Profile

Field	Value
dataset_role	Foreground manufacturing dataset for the declared noil route
downstream_use	secondary_dataset; background_dataset
allowed_use	Declared sheep-wool noil supply in downstream textile modelling with verified upstream links and allocation
excluded_use	Full CPC coverage, fine hair, dyed/carbonised noils, zero-burden recycled fibre, yarn performance comparisons and automatic cradle-to-gate claims
required_metadata	Site and period; lot composition; starting state; process coverage; acceptance; moisture/mass basis; noil and top outputs; upstream links; packaging; allocation and prices
required_quality_disclosure	Identity gaps; measurement completeness; exclusions; uncertainty; sampling representativeness; allocation sensitivity and LCIA coverage of particulate flow
update_trigger	Change in fibre source, received state, combing technology, treatment, packaging, allocation prices, discharge monitoring or upstream representativeness

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-3-2025	official_guidance	UNSD, CPC Ver. 3.0 Structure, 30 June 2025, row 26140. https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Structure_30Jun2025.csv	Classification title only; not a production method or approval
woolmark-topmaking	extension_guidance	The Woolmark Company, Top-making, undated official page, sections Gilling and Combing. https://www.woolmark.com/industry/product-development/wool-processing/worsted-top-making/	Qualitative sheep-wool route and noil/top separation; no quantitative process assumptions or fine-hair extrapolation
ghg-product-2011	official_guidance	WRI/WBCSD, Product Life Cycle Accounting and Reporting Standard (2011), chapter 9, printed p. 63, Tables 9.1–9.2 (PDF p. 65). https://ghgprotocol.org/sites/default/files/standards/Product-Life-Cycle-Accounting-Reporting-Standard_041613.pdf	Allocation hierarchy as a disclosed methodological reference; not current law, textile product certification or a noil-specific factor