Dry-brushed graded unspun sisal fibre

1. Scope and Applicability

This PCR covers factory finishing of single-species Agave sisalana fibre received already extracted and dried: sorting, dry brushing, grading and baling. The representative output is untreated, unspun main fibre, with recovered saleable tow accounted separately. Sisaex distinguishes fibre finishing from later yarn and rope production; Grosso documents recovered brushing tow. These are manufacturer route observations, not universal recipes.

CPC 26190 is broader: the official explanation also includes processed flax, hemp, abaca, coconut, ramie and other fibres. This PCR does not cover that whole subclass. Fresh-leaf decortication, washing and initial drying are upstream; ramie degumming, coir retting, flax scutching, hemp cottonization, wet chemical treatment, dyeing, spinning, composites and post-consumer rag reclamation need separate route methodology. A plant performing these operations shall separate its unit processes and cannot use this foreground boundary to conceal them.

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-brushed-graded-unspun-sisal-fibre
classification_refs	CPC 3.0: 26190; narrower semantic scope; no accepted mapping is asserted
covered_products	Dry-brushed graded unspun untreated Agave sisalana main fibre; associated saleable brushing tow as co-product
excluded_products	Other fibre species; raw leaves; wet or chemically treated fibre; yarn; rope; fibre waste as the reference product
representative_product	Dry-brushed graded unspun sisal fibre
production_route	Dried extracted fibre receipt → dry sorting/brushing/grading → net weighing and baling
market_state	Factory-gate baled fibre, declared grade and moisture; packaging excluded from reference mass

3. Reference Flow

Field	Value
What	Supply unspun sisal fibre for declared downstream processing
How much	1 kg net accepted fibre at dispatch moisture
How well	Declared species purity, processing state, length distribution, grade, impurity acceptance and measured moisture; buyer-specific limits
How long or cycle	One accepted production lot; no service life claim
reference_flow_link	reference_product_output

Field	Value
Reference amount	1
Reference product flow	Dry-brushed graded unspun sisal fibre
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	Agave sisalana species and purity; extracted dried incoming state; dry brushing route; main-fibre grade; fibre length distribution; impurity specification; measured wet-basis moisture; net mass excluding packaging; untreated unspun state; site and period; packaging configuration

Declare all required qualifiers in the dataset. This is a declared-unit intermediate product, not evidence of equivalent downstream performance.

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	Weigh net fibre using calibrated scales and measured tare; normalize every row to per 1 kg reference flow with cp_mass_baling. Maintain the declared dispatch moisture basis.
electricity_conversion	receipt_electricity; brushing_electricity; baling_electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve the public energy reference property. Collect kWh; 1 kWh = 3.6 MJ. Never treat electricity as mass or use rated power as measured energy.
moisture_observation	reference product	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Record wet-basis moisture fraction w and as-received mass m; dry solids = m × (1 − w). Do not replace the 1 kg dispatch reference by dry mass without an explicit separate conversion and metadata.

5. System Boundary

rule_id	Applies to	Rule	source_ids
boundary_finishing	all foreground processes	Start at accepted extracted dried fibre receipt; include sorting, brushing, grading, dust handling, baling, net weighing and attributable gate storage/handling. This is gate-to-gate finishing.	sisaex-finishing; grosso-sisal
upstream_separation	agricultural and wet extraction operations	Keep cultivation, harvesting, leaf decortication, extraction washing and initial drying outside this foreground. Link state-compatible supplier datasets; a complete cradle-to-gate claim requires these upstream burdens and transport explicitly connected and completeness demonstrated.	grosso-sisal
wet_route_exclusion	route applicability	No wet treatment or dyeing is assumed. Actual wet cleaning, softening, bleaching or dyeing requires a route-specific extension with each chemical, technosphere water, wastewater and measured pollutant separately; do not assign zero effluent by omission.	sisaex-finishing
recursive_input	same-category fibre	Purchased already-brushed fibre must carry upstream finishing evidence; segregate it from this unbrushed-input route. Internal transfer and rework are counted once; never attach a second background dataset to internal transfers. Exclude downstream spinning, use and end of life.	unsd-cpc-2025; sisaex-finishing

Boundary Abstraction

Field	Value
declared_starting_condition	Accepted extracted dried unbrushed Agave sisalana fibre at factory receipt
starting_condition_role	foreground_input
product_classification_scope	Only dry finishing of sisal within CPC 26190; other routes unassessed
recursive_input_rule	Segregate purchased processed fibre; count internal transfers once
upstream_dataset_requirement	Species, extraction/drying state, moisture, region and period compatible supplier data including agricultural/extraction burdens where the study includes them
disclosure	State gate-to-gate extent, excluded routes, upstream coverage, transport responsibility and actual moisture/grade

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
receipt	Receipt, sorting and moisture verification	required	For the declared dry-finishing route	foreground_production	per 1 kg reference flow
brushing	Dry brushing, grading and dust capture	required	For the declared dry-finishing route	foreground_production	per 1 kg reference flow
baling	Baling, labelling and dispatch weighing	required	For the declared dry-finishing route	foreground_production	per 1 kg reference flow

Process: Receipt, sorting and moisture verification (receipt)

Inputs

Product flows

Extracted dried unbrushed sisal fibre (dried_sisal_input)

Weigh accepted incoming Agave sisalana fibre and record extraction/drying state, moisture and supplier. Leaves and mixed-species lots are outside this route.

• Selected flow: Extracted dried unbrushed sisal fibre
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_receipt
• Sources: sisaex-finishing

Alternating current (receipt_electricity)

Only user-side grid supply below 1 kV. Include warehouse handling and monitoring electricity actually attributable to this lot; other supply routes need their own verified identity.

This selected UUID is applicable only to actual CN grid-average consumption supply to the user below 1 kV. Other geography, supply technology or voltage requires another verified identity and matching provider data; it is not covered by this selected UUID.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Measured allocated batch kWh × 3.6 divided by accepted net main-fibre kg.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_receipt
• Sources: sisaex-finishing

Waste flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

Elementary flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

Outputs

Product flows

Sorted dried unbrushed sisal fibre (sorted_sisal_output)

Internal transfer to brushing; retain batch linkage and mass without adding a second upstream burden.

• Selected flow: Sorted dried unbrushed sisal fibre
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_receipt
• Sources: sisaex-finishing

Waste flows

Rejected dried sisal fibre for off-site treatment (receipt_rejected_sisal)

Conditional on actual discarded fibre. Weigh separately and document contamination and destination; supplier-returned fibre is a product return rather than this waste.

• Selected flow: Rejected dried sisal fibre for off-site treatment
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_receipt
• Sources: sisaex-finishing

Elementary flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

Process: Dry brushing, grading and dust capture (brushing)

Inputs

Product flows

Sorted dried unbrushed sisal fibre (sorted_sisal_input)

Match the receipt transfer mass after explicitly recording intervening moisture change and stock movements.

• Selected flow: Sorted dried unbrushed sisal fibre
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_brushing
• Sources: sisaex-finishing

Alternating current (brushing_electricity)

Meter brushing drives and dust-extraction fans, with grid supply below 1 kV. Allocate shared electricity using measured machine-time and load evidence.

This selected UUID is applicable only to actual CN grid-average consumption supply to the user below 1 kV. Other geography, supply technology or voltage requires another verified identity and matching provider data; it is not covered by this selected UUID.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Measured allocated batch kWh × 3.6 divided by accepted net main-fibre kg.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_brushing
• Sources: sisaex-finishing

Waste flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

Elementary flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

Outputs

Product flows

Dry-brushed graded unspun sisal fibre before baling (brushed_sisal_output)

Weigh each accepted main-fibre grade before packing, with moisture and length/impurity acceptance recorded. No universal grade threshold is imposed.

• Selected flow: Dry-brushed graded unspun sisal fibre before baling
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_brushing
• Sources: sisaex-finishing

Saleable sisal tow recovered by dry brushing (sisal_tow_output)

Conditional on separately collected short fibre that meets a buyer specification and is sold as a co-product. Record grade, moisture, buyer and revenue; not the main reference product.

• Selected flow: Saleable sisal tow recovered by dry brushing
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_brushing
• Sources: grosso-sisal

Waste flows

Captured sisal brushing dust for off-site treatment (captured_sisal_dust)

Conditional on actual captured discard. Record dry fibre content and contamination separately from saleable tow; the collected solid is not an air emission.

• Selected flow: Captured sisal brushing dust for off-site treatment
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_brushing
• Sources: sisaex-finishing

Elementary flows

Particulate matter, particle size unspecified (particulate_air)

Conditional on measured particulate discharge to ambient air with unspecified subcompartment and particle-size fraction. Record emission point, test method, controls, air volume and uncertainty. Never infer PM2.5 from total dust; distinguish collected dust from emitted mass. Add size-specific or other actual pollutants as individual verified rows when data support them.

• Selected flow: Particulate matter, particle size unspecified 0ce3dedb-caca-407b-a856-a90470eb8ec0
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_air
• Sources:

Process: Baling, labelling and dispatch weighing (baling)

Inputs

Product flows

Dry-brushed graded unspun sisal fibre before baling (brushed_sisal_input)

Internal transfer of the same accepted grade; reconcile with brushing output and final net mass.

• Selected flow: Dry-brushed graded unspun sisal fibre before baling
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_baling
• Sources: sisaex-finishing

Alternating current (baling_electricity)

Include press, scale, lighting and handling electricity attributable to this lot for grid supply below 1 kV, retaining idle-load allocation evidence.

This selected UUID is applicable only to actual CN grid-average consumption supply to the user below 1 kV. Other geography, supply technology or voltage requires another verified identity and matching provider data; it is not covered by this selected UUID.

• Selected flow: Alternating current 50657322-939c-4829-a87b-47c093bfa6a7
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ
• Amount rule: Measured allocated batch kWh × 3.6 divided by accepted net main-fibre kg.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_energy_baling
• Sources: sisaex-finishing

Polypropylene bale strapping (pp_bale_strap)

Conditional on use of solid polypropylene strap. Weigh actual consumption and retain specification; resin, twine and cable ties are not interchangeable identities.

• Selected flow: Polypropylene bale strapping
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_pack
• Sources: sisaex-finishing

Paper bale label (paper_bale_label)

Conditional on an actual paper label. Weigh labels separately; declare any adhesive as another atomic input if used. No mixed packaging placeholder is permitted.

• Selected flow: Paper bale label
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: Measured allocated batch exchange amount divided by accepted net main-fibre kg; retain moisture and stock records.
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_pack
• Sources: sisaex-finishing

Waste flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

Elementary flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

Outputs

Product flows

Dry-brushed graded unspun sisal fibre (reference_product_output)

Net accepted fibre mass at dispatch, excluding straps and labels. Tare each bale and measure moisture. No spinning, dyeing or chemical softening is included.

• Selected flow: Dry-brushed graded unspun sisal fibre
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: 1 kg
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg reference flow
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mass_baling
• Sources: sisaex-finishing

Waste flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

Elementary flows

No exchange is assumed in this group for the declared route; record actual additional exchanges individually when present.

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
avoid_allocation	main fibre and tow	Separate metered operations and grade-specific packing first. For joint brushing, cp_allocation shall test whether measured operation/material relationships justify physical partition. Never infer an allocation ratio from the classification title or assume all short fibre is waste.	grosso-sisal
joint_partition	unseparated joint burdens	If separation and a causal physical relationship cannot be established, disclose economic partition as a study-specific choice based on actual same-period net revenues for main-fibre grades and saleable tow. Report quantities, prices, period, factor and sensitivity to moisture-adjusted mass partition; unresolved evidence prevents comparability. No fixed factor is supplied by this PCR.
waste_no_credit	discarded fibre and captured dust	Document product-versus-waste status using actual contracts and destination. Assign treatment burdens consistently with the study method and disclose any substitution scenario separately; no automatic avoided-product credit. Include treatment and transport once.

8. Foreground Data Collection, Calculation, and Quality Rules

Collection normalization: retain measured batch totals, apply allocation first, and divide by accepted net main-fibre kg. Electricity is converted to MJ first; component counts require measured component mass. This procedure gives the aggregation basis specified below.

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_mass_receipt	receipt	fibre transfers and outputs	measurement	lot; species; grade; gross and tare mass; moisture fraction; accepted net mass; tow mass; rejects; opening/closing stocks	Calibrated scales; batch reconciliation; documented gravimetric moisture method and sampling including oven conditions appropriate to fibre	kg	Each lot and transfer	One complete representative reporting period including rejects and rework	Declared plant and dry line	per 1 kg reference flow	Calibration; tare records; moisture tests; supplier state; buyer acceptance; disposal receipts
cp_mass_brushing	brushing	fibre transfers and outputs	measurement	lot; species; grade; gross and tare mass; moisture fraction; accepted net mass; tow mass; rejects; opening/closing stocks	Calibrated scales; batch reconciliation; documented gravimetric moisture method and sampling including oven conditions appropriate to fibre	kg	Each lot and transfer	One complete representative reporting period including rejects and rework	Declared plant and dry line	per 1 kg reference flow	Calibration; tare records; moisture tests; supplier state; buyer acceptance; disposal receipts
cp_mass_baling	baling	fibre transfers and outputs	measurement	lot; species; grade; gross and tare mass; moisture fraction; accepted net mass; tow mass; rejects; opening/closing stocks	Calibrated scales; batch reconciliation; documented gravimetric moisture method and sampling including oven conditions appropriate to fibre	kg	Each lot and transfer	One complete representative reporting period including rejects and rework	Declared plant and dry line	per 1 kg reference flow	Calibration; tare records; moisture tests; supplier state; buyer acceptance; disposal receipts
cp_energy_receipt	receipt	electricity	measurement	meter start/end kWh; voltage; equipment; operating and idle hours; allocation driver; period	Read calibrated process meters; reconcile with invoices; use measured operating-load evidence for shared meters, never nameplate capacity alone	kWh	Each shift and reporting period	Same period as cp_mass_baling	Same factory equipment	per 1 kg reference flow	Meter calibration; supply voltage; invoice reconciliation; allocation record
cp_energy_brushing	brushing	electricity	measurement	meter start/end kWh; voltage; equipment; operating and idle hours; allocation driver; period	Read calibrated process meters; reconcile with invoices; use measured operating-load evidence for shared meters, never nameplate capacity alone	kWh	Each shift and reporting period	Same period as cp_mass_baling	Same factory equipment	per 1 kg reference flow	Meter calibration; supply voltage; invoice reconciliation; allocation record
cp_energy_baling	baling	electricity	measurement	meter start/end kWh; voltage; equipment; operating and idle hours; allocation driver; period	Read calibrated process meters; reconcile with invoices; use measured operating-load evidence for shared meters, never nameplate capacity alone	kWh	Each shift and reporting period	Same period as cp_mass_baling	Same factory equipment	per 1 kg reference flow	Meter calibration; supply voltage; invoice reconciliation; allocation record
cp_pack	baling	strap and paper label separately	measurement	material specification; consumed mass; count; measured mass per component; stock; scrap; actual adhesive	Weigh components on calibrated scale and reconcile purchasing, stock and consumption; count only with measured component mass	kg	Each packing lot	Same as cp_mass_baling	Packing line	per 1 kg reference flow	Weighing; supplier specifications; consumption records
cp_air	brushing	measured particulate discharge	measurement	emission point; particulate concentration; dry standardized exhaust volume; duration; moisture; size definition; abatement status	Use representative stack tests or documented monitoring; combine matching concentration and gas volume bases; separately assess fugitive discharge. Unmeasured emissions remain a disclosed gap, not zero	kg	Representative operating conditions and control states	Same reporting period or justified temporal adjustment	Brushing exhaust points	per 1 kg reference flow	Test report; concentration/volume basis; control uptime; uncertainty
cp_allocation	brushing	joint outputs and shared operations	record	grade kg; tow kg; moisture; net revenue; invoice period; dedicated/shared meter; causal driver	Retain production/sales ledgers and measured physical partition evidence; explain choice and sensitivity. No default prices or allocation factors	kg	Each reporting period	Same as production inventory	All joint outputs at this factory	per 1 kg reference flow	Production, sales and reconciliation records

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_normalize	all inventory rows	q_norm = allocated batch exchange amount / accepted net main-fibre mass in kg; report per 1 kg reference flow. Internal transfers reconcile without repeated upstream burdens.	cp_mass_baling; cp_allocation	Normalized exchange in its declared unit
calc_energy	receipt_electricity; brushing_electricity; baling_electricity	E_MJ = measured allocated electricity_kWh × 3.6; then apply calc_normalize.	cp_energy_receipt; cp_energy_brushing; cp_energy_baling; cp_mass_baling	E_MJ
calc_moisture	all fibre mass rows	m_dry = m_wet × (1 − w); w is measured wet-basis water mass fraction. Use dry solids for balance only; the reference remains dispatch net mass.	cp_mass_baling	m_dry
calc_air	particulate_air	Emitted kg = measured concentration in mg/m3 × matching exhaust m3 / 1000000; retain matched dry/wet, temperature and pressure bases; apply calc_normalize after allocation.	cp_air; cp_mass_baling; cp_allocation	Emitted particulate mass
calc_partition	joint brushing burdens	Retain separation and causal physical evidence first. Where economic partition is justified, a_i = observed net revenue_i / sum of joint-product net revenues in the same period; fractions sum to one. Calculate moisture-adjusted mass alternative from measured dry product masses and disclose sensitivity.	cp_allocation	a_i

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_route	all processes	Confirm species purity, incoming extraction/drying state and absence of wet/chemical treatment; no classification-wide extrapolation	Supplier records and process walk-through
dq_balance	fibre transfers	Reconcile opening stock + inputs − closing stock with main fibre, tow, rejects and dust on measured dry-solids basis; quantify unexplained differences and sampling uncertainty. No universal loss threshold	Batch mass and moisture reconciliation
dq_coverage	data package	Cover representative operations, downtime, grades, supplier/geographic mix and period. Disclose missing inventories and allocation uncertainty; no invented temperature, yield, moisture or lifetime	Meter/production coverage and uncertainty report

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_identity	reference product	Require exact main-fibre state and qualifiers, matching reference output and 1 kg net mass. An unresolved product UUID must be declared and confirmed before release; a broader fibre or yarn identity is not interchangeable.
validate_measurements	all inventory rows	Require linked protocols, same reporting-period mass denominator, unit conversions and documented allocation. Reject kg/kWh/MJ confusion, gross-mass reference, missing moisture basis or unexplained stock differences.
validate_atomic_boundary	route and emissions	Require one atomic exchange per row; distinguish solid dust from emitted air particulate, technosphere water from resources and wastewater. Check actual ancillary inputs and waste handling; gaps fail completeness and cannot be replaced by assumed zero.
validate_upstream_claim	dataset profile	Gate-to-gate finishing alone cannot establish complete cradle-to-gate coverage or equivalence between grades. Require audited upstream links and disclosure before extending scope.	unsd-cpc-2025

10. Published Dataset Profile

Field	Value
dataset_role	foreground_dataset
downstream_use	secondary_dataset; background_dataset
allowed_use	Route-specific unspun sisal finishing input to later spinning or product manufacture, with grade and moisture compatibility
excluded_use	Whole CPC coverage; raw leaf production; wet treatment; spun yarn; use-stage performance; automatic full cradle-to-gate claims
required_metadata	Site, period, species, incoming state, output grade, length, moisture, net mass, packaging, upstream links, allocation and actual route
required_quality_disclosure	Measured and estimated shares; mass reconciliation; missing exchanges; upstream/transport extent; identities; emission coverage and uncertainty; sensitivity
update_trigger	Changed species, route, moisture convention, grade specification, equipment, electricity supply, packaging or allocation evidence

11. Data Sources

Source id	Type	Reference	Used for
unsd-cpc-2025	official_guidance	UNSD, CPC Ver. 3.0 Explanatory Notes, 30 June 2025, printed/PDF pp. 117–118. https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf	26190 breadth, other fibre routes and raw/retted exclusions; classification only
sisaex-finishing	literature	Sisaex, Productive Process, undated manufacturer page, Benefiting Fiber steps 1–7 and Fiber Industrialization. https://sisaex.com.br/Sisaex_en/productive_process.html	Dry finishing stages and moisture monitoring; one manufacturer route, no universal numeric recipe
grosso-sisal	literature	Grosso Sisal, operations and Sisal Fibre Products / Tow Fibre, undated manufacturer page. https://grossosisal.com/	Extraction upstream distinction and recoverable brushing tow; supplier-specific grades and bale sizes are not adopted as defaults