Edible offal of sheep, fresh, chilled or frozen

1. Scope and Applicability

This PCR is a deliberately narrow, non-averaged implementation within CPC 3.0 class 21155. It applies only to edible sheep liver delivered chilled at the processing-facility gate. The fixed route receives live sheep at an integrated slaughterhouse, performs slaughter and evisceration, separates the red-offal pluck, trims and washes the liver with potable water, chills it by forced air in a central ammonia (R717) refrigeration system, packs it in LDPE film and corrugated-fibreboard cartons, and transfers wastewater to off-site treatment.

Fresh or frozen liver, kidneys, hearts, tongues, lungs sold as the reference product, mixed-offal packs, goat offal, rendered products, cooked products, retail storage, distribution and consumer preparation are outside this PCR. Hearts, lungs and tracheae that physically arise on the locked route are separate co-products, never substitutes for or averages with the sheep-liver reference product.

No default utility, material, yield, refrigerant-loss, waste or pollutant quantity is prescribed. A conforming first dataset uses facility records or the calculation rules below. The official and literature sources support process inclusion, hygiene, temperature control, wastewater characterisation and allocation method; they do not replace foreground measurements.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.food-products-beverages-and-tobacco-textiles-apparel-and-leather-products.meat-fish-fruits-vegetables-oils-and-fats.edible-offal-of-sheep-fresh-chilled-or-frozen
classification_refs	CPC 3.0:21155, narrower methodology scope
covered_products	Post-mortem-inspected edible sheep liver, air-chilled to 0–3 °C and packaged at the processing-facility gate
excluded_products	Other sheep tissues; mixed offal; goat offal; fresh liver; frozen liver; cooked, cured or otherwise prepared liver; retail or consumer-stage product
representative_product	Packaged chilled sheep liver
production_route	Integrated sheep slaughter; red-offal separation; liver trimming; potable-water washing; forced-air R717 chilling and cold holding; LDPE primary wrapping; corrugated-fibreboard secondary packaging; off-site wastewater treatment
market_state	Chilled, never frozen, packaged, ex-works processing-facility gate

3. Reference Flow

Field	Value
What	Packaged edible sheep liver from the locked slaughterhouse and air-chilling route
How much	1,000 kg net product mass, excluding packaging
How well	Post-mortem accepted for human consumption; liver tissue only; core temperature 0–3 °C at gate; packaging intact; no freezing
How long or cycle	One reporting period containing complete slaughter, separation, washing, chilling, packaging and sanitation records; normally 12 consecutive months
reference_flow_link	packaged_chilled_sheep_liver

Field	Value
Reference amount	1,000 kg net packaged chilled sheep liver
Reference product flow	Edible offal of sheep, fresh, chilled or frozen 1f8ad4d0-18e1-4ee6-8006-0d578c5e07eb
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	species=Ovis aries; tissue=liver; temperature_state=chilled; gate_core_temperature=0–3 °C; freezing_history=never_frozen; slaughter_route=integrated_slaughterhouse; chilling_route=forced_air_R717; wastewater_route=off_site_treatment; packaging=LDPE_film_and_corrugated_fibreboard; net_mass_excludes_packaging=true

When constructing a foreground data package, every required qualifier must be declared in dataset metadata, process notes, the reference-flow comment, the product description or an equivalent field. The broad Tiangong flow identity does not authorise averaging across organs or temperature states.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_net_mass	packaged_chilled_sheep_liver	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Measure net liver mass after packaging tare deduction; normalise all inventory to 1,000 kg net product.
live_weight_basis	live_sheep_input	Mass	kg live weight	Record verified live weight at slaughterhouse receipt; do not substitute carcass weight.
intermediate_mass_consistency	all liver intermediate rows	Mass	kg	Use the same calibrated scale basis and batch identity through trimming, washing, chilling and packaging.
water_volume_conversion	potable-water and wastewater carrier rows	Volume	m3	Preserve metered m3; if mass is recorded, convert using measured water density or a disclosed accepted conversion.
electricity_metering	grid-electricity rows	Energy	kWh	Use imported active electricity from dedicated sub-meters or a documented allocation of the facility meter; do not combine electricity with thermal energy.
purchased_hot_water_metering	purchased-hot-water rows	Energy	MJ	Record delivered thermal energy; when only volume and temperatures are metered, calculate with calc_hot_water_energy.
chemical_solution_mass	detergent and disinfectant rows	Mass	kg solution	Record formulated solution mass and separately retain supplier concentration; do not report active ingredient mass as formulated solution mass.
temperature_compliance	chilled liver	Temperature	°C	Use calibrated core-temperature readings; all released lots must be 0–3 °C and must not have frozen.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Live sheep accepted at the integrated slaughterhouse receiving gate, with upstream husbandry and inbound transport supplied by traceable upstream datasets
starting_condition_role	Foreground slaughter input carrying upstream sheep-production and inbound-transport burdens
product_classification_scope	CPC 3.0:21155 context; this methodology is restricted to chilled sheep liver
recursive_input_rule	If an input already represents edible sheep liver from another facility, do not restart the live-sheep route; link the upstream liver dataset and disclose the transferred starting condition, but such a route is outside this locked PCR
upstream_dataset_requirement	Species-, production-system-, geography-, period- and transport-representative live-sheep supply datasets; no generic sheep-offal proxy
disclosure	Declare slaughterhouse, reporting period, live-sheep origin, slaughter and inspection regime, organ identity, temperature log, refrigeration technology, wastewater destination, package specification and allocation price basis

rule_id	Applies to	Rule	source_ids
sb_route_lock	foreground system	Include only the integrated chilled-sheep-liver route stated in section 1; do not average tissues, fresh/chilled/frozen states or mutually exclusive wastewater and refrigeration routes.	fao-small-ruminant-slaughter-manual; eu-ec-853-2004-meat-hygiene
sb_upstream_scope	upstream supply	Include sheep husbandry and inbound transport through traceable upstream datasets attached to live_sheep_input; keep those upstream processes outside foreground measurements.	fao-who-cxc-58-2005-meat-hygiene
sb_foreground_scope	slaughterhouse foreground	Include slaughter/evisceration, red-offal separation, liver trimming, potable-water washing, forced-air chilling and cold holding, packaging, sanitation, waste handling and transfer of wastewater to off-site treatment.	fao-who-cxc-58-2005-meat-hygiene; fao-slaughter-meat-processing-guidelines; fao-small-ruminant-slaughter-manual
sb_temperature_gate	product release	Release only liver with a measured core temperature of 0–3 °C; maintain the cold chain and exclude any frozen lot.	eu-ec-853-2004-meat-hygiene
sb_wastewater_route	wastewater	Model the locked off-site-treatment route: record carrier volume and each listed pollutant load separately at the facility sewer boundary; do not also model a direct elementary discharge.	ifc-2007-meat-processing-ehs
sb_exclusions	downstream stages	Exclude distribution after the factory gate, retail, cooking, consumption, packaging end-of-life and off-site wastewater treatment beyond the transfer boundary.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
slaughter_evisceration	Sheep slaughter and evisceration	required	Always for the locked integrated route	Foreground joint-production process	kg live sheep received and complete slaughter outputs
liver_separation_trimming	Red-offal separation and liver trimming	required	Always for the locked liver route	Foreground organ separation	kg red-offal pluck processed
liver_washing	Potable-water liver washing	required	Always for the locked route	Foreground cleaning	kg trimmed liver input
air_chilling_cold_holding	Forced-air chilling and cold holding	required	Always; central R717 system	Foreground temperature control	kg washed liver entering chilling and holding hours
primary_packaging	LDPE wrapping and corrugated-fibreboard packing	required	Always for the locked packaged gate product	Foreground packaging	kg net chilled liver packed
equipment_sanitation	Route equipment and room sanitation	required	Always; sodium-hydroxide detergent followed by sodium-hypochlorite disinfection	Foreground hygiene support	sanitation event and 1,000 kg reference product

Process: Sheep slaughter and evisceration (slaughter_evisceration)

Inputs

Product flows

Live sheep received for slaughter (live_sheep_input)

Live sheep crossing the slaughterhouse gate are recorded by verified species-specific live weight and linked to upstream husbandry and inbound-transport datasets.

• Selected flow: Live sheep
• Flow property / unit: Mass / kg live weight
• Amount rule: verified receiving-scale live weight for sheep slaughtered in the reporting period
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_mass_outputs
• Sources: fao-who-cxc-58-2005-meat-hygiene

Potable water used in slaughter and evisceration (slaughter_potable_water)

Record only potable water used by slaughter and evisceration operations; sanitation water is assigned to equipment_sanitation.

• Selected flow: Potable water
• Flow property / unit: Volume / m3
• Amount rule: dedicated meter or documented meter allocation for slaughter and evisceration
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_utilities
• Sources: eu-ec-852-2004-food-hygiene

Grid electricity used in slaughter and evisceration (slaughter_grid_electricity)

Record imported active electricity for the slaughter floor, evisceration line and directly associated equipment.

• Selected flow: Grid electricity
• Flow property / unit: Energy / kWh
• Amount rule: sub-metered electricity or documented allocation from the facility import meter
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_utilities

Purchased hot water used in slaughter operations (slaughter_purchased_hot_water)

This route purchases centrally supplied hot water and uses no on-site combustion for this thermal service.

• Selected flow: Purchased hot water
• Flow property / unit: Energy / MJ
• Amount rule: delivered thermal-energy meter or calc_hot_water_energy from foreground records
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_utilities

Waste flows

Elementary flows

Outputs

Product flows

Dressed sheep carcass co-product (dressed_sheep_carcass)

Record saleable dressed carcass mass separately from every offal and by-product output.

• Selected flow: Dressed sheep carcass
• Flow property / unit: Mass / kg
• Amount rule: calibrated hot- or cold-carcass weight with the weighing state disclosed
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per slaughter reporting period and per 1,000 kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_mass_outputs

Red-offal pluck sent to organ separation (red_offal_pluck)

The liver, heart, lungs and trachea remain a single physically handled pluck at this transfer point; individual tissues are separated in the next process.

• Selected flow: Sheep red-offal pluck
• Flow property / unit: Mass / kg
• Amount rule: measured pluck mass transferred to liver_separation_trimming
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_mass_outputs
• Sources: fao-small-ruminant-slaughter-manual

Sheepskin co-product (sheepskin_coproduct)

Record saleable sheepskin mass and destination separately.

• Selected flow: Sheepskin
• Flow property / unit: Mass / kg
• Amount rule: measured dispatched sheepskin mass
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per slaughter reporting period and per 1,000 kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_mass_outputs

Recovered sheep blood co-product (recovered_sheep_blood)

Record only blood collected in a closed system and sold or transferred as a co-product; blood entering wastewater is captured by pollutant measurements instead.

• Selected flow: Recovered sheep blood
• Flow property / unit: Mass / kg
• Amount rule: measured collected blood dispatched as co-product
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per slaughter reporting period and per 1,000 kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_mass_outputs
• Sources: fao-small-ruminant-slaughter-manual

Waste flows

Paunch contents sent to waste management (paunch_contents_waste)

Record removed gastrointestinal contents by wet mass and actual destination.

• Selected flow: Sheep paunch contents waste
• Flow property / unit: Mass / kg
• Amount rule: measured container mass net of tare
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_wastes
• Sources: fao-small-ruminant-slaughter-manual

Inedible slaughter trim sent to waste management (inedible_slaughter_trim_waste)

Record condemned or inedible solid tissue from slaughter separately from paunch contents and organ-line trim.

• Selected flow: Inedible sheep slaughter trim waste
• Flow property / unit: Mass / kg
• Amount rule: measured waste-container mass net of tare
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_wastes

Slaughter wastewater carrier sent to off-site treatment (slaughter_wastewater_carrier)

Record liquid volume at the off-site sewer transfer boundary; pollutant loads below are constituents of this carrier and are not additional carrier mass.

• Selected flow: Slaughter wastewater to off-site treatment
• Flow property / unit: Volume / m3
• Amount rule: effluent meter volume assigned to slaughter and evisceration
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_slaughter_wastewater
• Sources: ifc-2007-meat-processing-ehs

COD in slaughter wastewater (slaughter_wastewater_cod)

Record chemical oxygen demand as an individual pollutant load in the wastewater transferred off site.

• Selected flow: Chemical oxygen demand in slaughter wastewater
• Flow property / unit: Mass / kg COD
• Amount rule: calc_wastewater_pollutant_load using matched volume and COD concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_slaughter_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total nitrogen in slaughter wastewater (slaughter_wastewater_total_nitrogen)

Record total nitrogen as an individual pollutant load in the wastewater transferred off site.

• Selected flow: Total nitrogen in slaughter wastewater
• Flow property / unit: Mass / kg N
• Amount rule: calc_wastewater_pollutant_load using matched volume and total-nitrogen concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_slaughter_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total phosphorus in slaughter wastewater (slaughter_wastewater_total_phosphorus)

Record total phosphorus as an individual pollutant load in the wastewater transferred off site.

• Selected flow: Total phosphorus in slaughter wastewater
• Flow property / unit: Mass / kg P
• Amount rule: calc_wastewater_pollutant_load using matched volume and total-phosphorus concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_slaughter_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total suspended solids in slaughter wastewater (slaughter_wastewater_tss)

Record total suspended solids as an individual pollutant load in the wastewater transferred off site.

• Selected flow: Total suspended solids in slaughter wastewater
• Flow property / unit: Mass / kg TSS
• Amount rule: calc_wastewater_pollutant_load using matched volume and TSS concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_slaughter_wastewater
• Sources: ifc-2007-meat-processing-ehs

Oil and grease in slaughter wastewater (slaughter_wastewater_oil_grease)

Record oil and grease as an individual pollutant load in the wastewater transferred off site.

• Selected flow: Oil and grease in slaughter wastewater
• Flow property / unit: Mass / kg
• Amount rule: calc_wastewater_pollutant_load using matched volume and oil-and-grease concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_slaughter_wastewater
• Sources: ifc-2007-meat-processing-ehs

Elementary flows

Process: Red-offal separation and liver trimming (liver_separation_trimming)

Inputs

Product flows

Red-offal pluck received from slaughter (red_offal_pluck_input)

Use the same batch-linked pluck mass reported by red_offal_pluck; no duplicate upstream burden is added.

• Selected flow: Sheep red-offal pluck
• Flow property / unit: Mass / kg
• Amount rule: batch-linked measured transfer mass equal to red_offal_pluck
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_separation_outputs
• Sources: fao-small-ruminant-slaughter-manual

Grid electricity used for separation and trimming (separation_grid_electricity)

Record electricity for conveyors, task lighting and powered trimming equipment assigned to this line.

• Selected flow: Grid electricity
• Flow property / unit: Energy / kWh
• Amount rule: sub-metered electricity or documented allocation from the facility import meter
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_separation_outputs

Waste flows

Elementary flows

Outputs

Product flows

Trimmed raw sheep liver (trimmed_raw_sheep_liver)

Record liver accepted after veterinary disposition, tissue separation and visible-defect trimming.

• Selected flow: Trimmed raw sheep liver
• Flow property / unit: Mass / kg
• Amount rule: calibrated scale mass after trimming and before washing
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_separation_outputs
• Sources: fao-slaughter-meat-processing-guidelines

Sheep heart co-product (sheep_heart_coproduct)

Record heart output separately; it must never be averaged with liver.

• Selected flow: Edible sheep heart
• Flow property / unit: Mass / kg
• Amount rule: measured accepted heart mass and destination
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per slaughter reporting period and per 1,000 kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_separation_outputs
• Sources: fao-small-ruminant-slaughter-manual

Sheep lungs co-product (sheep_lungs_coproduct)

Record lungs separately with the actual food, feed or rendering destination.

• Selected flow: Sheep lungs
• Flow property / unit: Mass / kg
• Amount rule: measured lungs mass and destination
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per slaughter reporting period and per 1,000 kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_separation_outputs
• Sources: fao-small-ruminant-slaughter-manual

Sheep trachea co-product (sheep_trachea_coproduct)

Record the trachea separately with its actual destination.

• Selected flow: Sheep trachea
• Flow property / unit: Mass / kg
• Amount rule: measured trachea mass and destination
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per slaughter reporting period and per 1,000 kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_separation_outputs

Waste flows

Inedible liver trim (inedible_liver_trim)

Record removed vessels, connective tissue and other non-saleable liver trim separately from rejected whole liver.

• Selected flow: Inedible sheep liver trim waste
• Flow property / unit: Mass / kg
• Amount rule: measured trim-container mass net of tare
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_separation_outputs

Rejected sheep liver (rejected_sheep_liver)

Record whole or partial liver rejected after post-mortem disposition separately from routine trim.

• Selected flow: Rejected sheep liver waste
• Flow property / unit: Mass / kg
• Amount rule: measured rejected-liver mass and recorded disposition reason
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_separation_outputs
• Sources: fao-who-cxc-58-2005-meat-hygiene

Elementary flows

Process: Potable-water liver washing (liver_washing)

Inputs

Product flows

Trimmed liver entering washing (trimmed_liver_washing_input)

Use the same batch-linked mass as trimmed_raw_sheep_liver.

• Selected flow: Trimmed raw sheep liver
• Flow property / unit: Mass / kg
• Amount rule: batch-linked measured transfer mass equal to trimmed_raw_sheep_liver
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_washing_mass_water

Potable washing water (washing_potable_water)

Use potable water only and record the meter serving the liver washing line.

• Selected flow: Potable water
• Flow property / unit: Volume / m3
• Amount rule: dedicated washing-line meter volume
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_washing_mass_water
• Sources: eu-ec-852-2004-food-hygiene; fao-small-ruminant-slaughter-manual

Grid electricity used for liver washing (washing_grid_electricity)

Record electricity for the dedicated washing pump and line equipment.

• Selected flow: Grid electricity
• Flow property / unit: Energy / kWh
• Amount rule: sub-metered electricity or documented allocation from the facility import meter
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_washing_mass_water

Waste flows

Elementary flows

Outputs

Product flows

Washed sheep liver (washed_sheep_liver)

Record drained liver mass after potable-water washing and before chilling.

• Selected flow: Washed raw sheep liver
• Flow property / unit: Mass / kg
• Amount rule: calibrated drained-product mass after the declared drip time
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_washing_mass_water

Waste flows

Washing wastewater carrier sent to off-site treatment (washing_wastewater_carrier)

Record washing-effluent volume at the sewer transfer boundary; constituent loads are reported in separate cards.

• Selected flow: Liver-washing wastewater to off-site treatment
• Flow property / unit: Volume / m3
• Amount rule: dedicated effluent meter or validated water-balance volume
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_washing_wastewater
• Sources: ifc-2007-meat-processing-ehs

COD in washing wastewater (washing_wastewater_cod)

Record chemical oxygen demand as an individual pollutant load.

• Selected flow: Chemical oxygen demand in liver-washing wastewater
• Flow property / unit: Mass / kg COD
• Amount rule: calc_wastewater_pollutant_load using matched volume and COD concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_washing_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total nitrogen in washing wastewater (washing_wastewater_total_nitrogen)

Record total nitrogen as an individual pollutant load.

• Selected flow: Total nitrogen in liver-washing wastewater
• Flow property / unit: Mass / kg N
• Amount rule: calc_wastewater_pollutant_load using matched volume and total-nitrogen concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_washing_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total phosphorus in washing wastewater (washing_wastewater_total_phosphorus)

Record total phosphorus as an individual pollutant load.

• Selected flow: Total phosphorus in liver-washing wastewater
• Flow property / unit: Mass / kg P
• Amount rule: calc_wastewater_pollutant_load using matched volume and total-phosphorus concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_washing_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total suspended solids in washing wastewater (washing_wastewater_tss)

Record total suspended solids as an individual pollutant load.

• Selected flow: Total suspended solids in liver-washing wastewater
• Flow property / unit: Mass / kg TSS
• Amount rule: calc_wastewater_pollutant_load using matched volume and TSS concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_washing_wastewater
• Sources: ifc-2007-meat-processing-ehs

Oil and grease in washing wastewater (washing_wastewater_oil_grease)

Record oil and grease as an individual pollutant load.

• Selected flow: Oil and grease in liver-washing wastewater
• Flow property / unit: Mass / kg
• Amount rule: calc_wastewater_pollutant_load using matched volume and oil-and-grease concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_washing_wastewater
• Sources: ifc-2007-meat-processing-ehs

Elementary flows

Process: Forced-air chilling and cold holding (air_chilling_cold_holding)

Inputs

Product flows

Washed liver entering chilling (washed_liver_chilling_input)

Use the same batch-linked mass as washed_sheep_liver.

• Selected flow: Washed raw sheep liver
• Flow property / unit: Mass / kg
• Amount rule: batch-linked measured transfer mass equal to washed_sheep_liver
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_chilling_energy_temperature

Grid electricity used for chilling and cold holding (chilling_grid_electricity)

Record electricity for compressors, fans, pumps and the allocated share of cold holding; do not include other facility refrigeration loads.

• Selected flow: Grid electricity
• Flow property / unit: Energy / kWh
• Amount rule: refrigeration sub-meter energy allocated by measured liver chamber load and holding time
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_chilling_energy_temperature

Ammonia refrigerant replenishment (ammonia_refrigerant_replenishment)

The locked central refrigeration system uses anhydrous ammonia (R717); record replenishment attributable to this product route from the annual refrigerant balance.

• Selected flow: Anhydrous ammonia refrigerant (R717)
• Flow property / unit: Mass / kg
• Amount rule: calc_refrigerant_loss allocated by metered refrigeration electricity share
• Value mode: Calculated value (calculated_value)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_refrigerant_inventory

Waste flows

Elementary flows

Outputs

Product flows

Chilled sheep liver (chilled_sheep_liver)

Record batch mass and core-temperature readings after forced-air chilling and before packaging.

• Selected flow: Chilled sheep liver
• Flow property / unit: Mass / kg
• Amount rule: calibrated mass of lots meeting 0–3 °C core-temperature and never-frozen criteria
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_chilling_energy_temperature
• Sources: eu-ec-853-2004-meat-hygiene; fao-meat-cold-store-manual

Waste flows

Elementary flows

Ammonia refrigerant emitted to air (ammonia_refrigerant_to_air)

Report the R717 loss calculated from the same closed refrigerant inventory as the replenishment input; do not create a generic refrigerant card.

• Selected flow: Ammonia to air from R717 refrigeration leakage
• Flow property / unit: Mass / kg NH3
• Amount rule: calc_refrigerant_loss allocated by metered refrigeration electricity share
• Value mode: Calculated value (calculated_value)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_refrigerant_inventory

Process: LDPE wrapping and corrugated-fibreboard packing (primary_packaging)

Inputs

Product flows

Chilled liver entering packaging (chilled_liver_packaging_input)

Use the same accepted-lot mass as chilled_sheep_liver.

• Selected flow: Chilled sheep liver
• Flow property / unit: Mass / kg
• Amount rule: batch-linked measured transfer mass equal to chilled_sheep_liver
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_materials

LDPE primary packaging film (ldpe_film_input)

Record low-density polyethylene film net of returned unused stock; do not combine it with fibreboard.

• Selected flow: Low-density polyethylene film
• Flow property / unit: Mass / kg
• Amount rule: opening inventory plus receipts minus closing inventory minus separately measured trim waste
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_packaging_materials
• Sources: eu-ec-852-2004-food-hygiene

Corrugated-fibreboard secondary cartons (corrugated_fibreboard_input)

Record corrugated-fibreboard carton mass separately from LDPE film.

• Selected flow: Corrugated fibreboard
• Flow property / unit: Mass / kg
• Amount rule: opening inventory plus receipts minus closing inventory minus separately measured trim waste
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_packaging_materials
• Sources: eu-ec-852-2004-food-hygiene

Grid electricity used for packaging (packaging_grid_electricity)

Record electricity for sealing, labelling and carton handling.

• Selected flow: Grid electricity
• Flow property / unit: Energy / kWh
• Amount rule: packaging-line sub-meter or documented equipment-runtime calculation
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_energy

Waste flows

Elementary flows

Outputs

Product flows

Packaged chilled sheep liver (packaged_chilled_sheep_liver)

This is the sole reference-product row. The 1,000 kg amount is net liver mass and excludes LDPE and fibreboard tare.

• Selected flow: Edible offal of sheep, fresh, chilled or frozen 1f8ad4d0-18e1-4ee6-8006-0d578c5e07eb
• Flow property / unit: Mass / kg
• Amount rule: 1,000 kg net packaged chilled sheep liver
• Value mode: Fixed value (fixed_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1,000 kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Identity reference (identity_reference)

Waste flows

LDPE packaging trim waste (ldpe_trim_waste)

Record LDPE film trim and rejected film separately from fibreboard waste.

• Selected flow: Low-density polyethylene packaging trim waste
• Flow property / unit: Mass / kg
• Amount rule: measured waste-bin mass net of tare
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_waste

Corrugated-fibreboard trim waste (corrugated_fibreboard_trim_waste)

Record damaged cartons and fibreboard trim separately from LDPE waste.

• Selected flow: Corrugated-fibreboard packaging waste
• Flow property / unit: Mass / kg
• Amount rule: measured waste-bin mass net of tare
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_waste

Elementary flows

Process: Route equipment and room sanitation (equipment_sanitation)

Inputs

Product flows

Potable sanitation water (sanitation_potable_water)

Record cold potable water used for cleaning and final rinsing across the foreground route.

• Selected flow: Potable water
• Flow property / unit: Volume / m3
• Amount rule: sanitation meter volume or event-level measured volume
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_sanitation_inputs
• Sources: eu-ec-852-2004-food-hygiene

Purchased hot water for sanitation (sanitation_purchased_hot_water)

Record purchased hot-water thermal energy separately from cold water and electricity.

• Selected flow: Purchased hot water
• Flow property / unit: Energy / MJ
• Amount rule: delivered thermal-energy meter or calc_hot_water_energy from event records
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_sanitation_inputs
• Sources: fao-slaughter-meat-processing-guidelines

Grid electricity used for sanitation (sanitation_grid_electricity)

Record electricity for sanitation pumps, foamers and related equipment.

• Selected flow: Grid electricity
• Flow property / unit: Energy / kWh
• Amount rule: sanitation sub-meter or documented equipment-runtime calculation
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_sanitation_inputs

Sodium-hydroxide-based alkaline detergent (sodium_hydroxide_detergent)

The locked sanitation route uses one formulated sodium-hydroxide-based alkaline detergent; record solution mass and concentration separately.

• Selected flow: Sodium-hydroxide-based alkaline detergent solution
• Flow property / unit: Mass / kg solution
• Amount rule: purchase and issue records reconciled to sanitation events
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_sanitation_inputs
• Sources: eu-ec-852-2004-food-hygiene

Sodium-hypochlorite disinfectant (sodium_hypochlorite_disinfectant)

The locked sanitation route uses one formulated sodium-hypochlorite solution after cleaning; record solution mass and available-chlorine concentration separately.

• Selected flow: Sodium hypochlorite disinfectant solution
• Flow property / unit: Mass / kg solution
• Amount rule: purchase and issue records reconciled to sanitation events
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_sanitation_inputs
• Sources: eu-ec-852-2004-food-hygiene

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Sanitation wastewater carrier sent to off-site treatment (sanitation_wastewater_carrier)

Record sanitation-effluent volume at the sewer transfer boundary; constituent pollutant loads are separate cards.

• Selected flow: Sanitation wastewater to off-site treatment
• Flow property / unit: Volume / m3
• Amount rule: dedicated effluent meter or validated water-balance volume
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_sanitation_wastewater
• Sources: ifc-2007-meat-processing-ehs

COD in sanitation wastewater (sanitation_wastewater_cod)

Record chemical oxygen demand as an individual pollutant load.

• Selected flow: Chemical oxygen demand in sanitation wastewater
• Flow property / unit: Mass / kg COD
• Amount rule: calc_wastewater_pollutant_load using matched volume and COD concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sanitation_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total nitrogen in sanitation wastewater (sanitation_wastewater_total_nitrogen)

Record total nitrogen as an individual pollutant load.

• Selected flow: Total nitrogen in sanitation wastewater
• Flow property / unit: Mass / kg N
• Amount rule: calc_wastewater_pollutant_load using matched volume and total-nitrogen concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sanitation_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total phosphorus in sanitation wastewater (sanitation_wastewater_total_phosphorus)

Record total phosphorus as an individual pollutant load.

• Selected flow: Total phosphorus in sanitation wastewater
• Flow property / unit: Mass / kg P
• Amount rule: calc_wastewater_pollutant_load using matched volume and total-phosphorus concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sanitation_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total suspended solids in sanitation wastewater (sanitation_wastewater_tss)

Record total suspended solids as an individual pollutant load.

• Selected flow: Total suspended solids in sanitation wastewater
• Flow property / unit: Mass / kg TSS
• Amount rule: calc_wastewater_pollutant_load using matched volume and TSS concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sanitation_wastewater
• Sources: ifc-2007-meat-processing-ehs

Oil and grease in sanitation wastewater (sanitation_wastewater_oil_grease)

Record oil and grease as an individual pollutant load.

• Selected flow: Oil and grease in sanitation wastewater
• Flow property / unit: Mass / kg
• Amount rule: calc_wastewater_pollutant_load using matched volume and oil-and-grease concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sanitation_wastewater
• Sources: ifc-2007-meat-processing-ehs

Total residual chlorine in sanitation wastewater (sanitation_wastewater_residual_chlorine)

Record total residual chlorine separately because the locked route uses sodium hypochlorite.

• Selected flow: Total residual chlorine in sanitation wastewater
• Flow property / unit: Mass / kg as Cl2
• Amount rule: calc_wastewater_pollutant_load using matched volume and total-residual-chlorine concentration records
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1,000 kg packaged chilled sheep liver
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sanitation_wastewater
• Sources: us-epa-2004-meat-effluent-development

Elementary flows

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
alloc_subdivide_direct_operations	liver_washing; air_chilling_cold_holding; primary_packaging	Attribute metered post-separation liver operations directly to liver; do not dilute these burdens across carcass, skin or other organs.	bamber-et-al-2026-allocation-review
alloc_joint_block_definition	slaughter_evisceration; liver_separation_trimming	Treat slaughter through completion of organ separation as one joint-production block when its shared inputs cannot be subdivided; retain separate measured masses and destinations for carcass, liver, heart, lungs, trachea, sheepskin and recovered blood.	le-feon-2020-meat-coproduct-allocation
alloc_primary_economic	joint-production block	Apply calc_economic_allocation using contemporaneous net ex-works revenue for every marketable output at the common separation gate. Waste and legally condemned material receive no co-product share; their handling burden remains with the joint block.	eu-pef-2013-allocation-hierarchy; le-feon-2020-meat-coproduct-allocation
alloc_price_evidence	co-product price ledger	Use invoiced net prices and saleable masses for the same reporting period, currency and gate; disclose zero-price, internal-transfer and missing-price treatment. Do not infer a liver price from another organ.	eu-pef-2013-allocation-hierarchy
alloc_economic_sensitivity	liver allocation result	Recalculate the liver share using every observed monthly net price in the reporting period and report the minimum, maximum and mass-weighted base result; if fewer than 12 months exist, report all observed months and the evidence gap without inventing prices.	le-feon-2020-meat-coproduct-allocation; bamber-et-al-2026-allocation-review
alloc_method_sensitivity	liver allocation result	Also report mass-based allocation across marketable outputs and, only when tissue-growth data support it, a biophysical allocation result; keep these as sensitivity scenarios and do not merge them with the primary economic result.	le-feon-2020-meat-coproduct-allocation; bamber-et-al-2026-allocation-review

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_slaughter_mass_outputs	slaughter_evisceration	live sheep and joint-product masses	receiving, scale and dispatch records	batch_id; slaughter_date; live_weight_kg; carcass_mass_kg; pluck_mass_kg; sheepskin_mass_kg; recovered_blood_mass_kg; scale_id; weighing_state	calibrated scales linked by slaughter batch	kg	every slaughter batch	complete reporting period	target slaughterhouse	sum each atomic output by row_id; preserve batch links	calibration certificates; receiving tickets; dispatch records; reconciliation sign-off
cp_slaughter_utilities	slaughter_evisceration	water, electricity and purchased hot water	meter records	timestamp; meter_id; potable_water_m3; grid_electricity_kWh; hot_water_energy_MJ; hot_water_volume_m3; supply_temperature_C; return_temperature_C; allocation_driver	dedicated meters; documented meter allocation only when no sub-meter exists	m3; kWh; MJ; °C	daily or finer	complete reporting period	slaughter and evisceration line	sum readings by utility; subtract verified non-route loads	meter calibration; invoices; allocation worksheet
cp_slaughter_wastes	slaughter_evisceration	paunch contents and inedible trim	waste container and consignment records	date; batch_id; waste_row_id; gross_mass_kg; tare_mass_kg; destination; manifest_id	calibrated container scale and waste consignment record	kg	every consignment	complete reporting period	slaughter floor	sum net mass separately by row_id and destination	scale checks; waste manifests; contractor receipts
cp_slaughter_wastewater	slaughter_evisceration	wastewater carrier and pollutant loads	flow meter and laboratory records	sample_id; start_time; end_time; wastewater_volume_m3; COD_mg_L; TN_mg_L; TP_mg_L; TSS_mg_L; oil_grease_mg_L; laboratory_method; sewer_destination	flow-proportional composite sampling matched to effluent volume	m3; mg/L	representative composite per production day or permit frequency, whichever is stricter	complete reporting period	slaughter wastewater substream before sewer mixing	calculate each pollutant with calc_wastewater_pollutant_load; volume-weight across samples	accredited laboratory reports; meter calibration; chain of custody
cp_separation_outputs	liver_separation_trimming	pluck input, tissue outputs, trim, rejection and electricity	batch scale, disposition and meter records	batch_id; pluck_input_kg; trimmed_liver_kg; heart_kg; lungs_kg; trachea_kg; inedible_trim_kg; rejected_liver_kg; rejection_reason; destination; electricity_kWh	calibrated scales, veterinary disposition records and sub-meter	kg; kWh	every batch; electricity daily or finer	complete reporting period	red-offal separation line	sum each atomic row_id; reconcile tissue outputs and wastes to pluck input	scale calibration; inspection record; signed mass-balance review
cp_washing_mass_water	liver_washing	liver mass, potable water and electricity	batch scale and meter records	batch_id; trimmed_liver_input_kg; washed_liver_drained_kg; drip_time_min; potable_water_m3; electricity_kWh; meter_id	calibrated scales and dedicated meters	kg; min; m3; kWh	every batch; meters daily or finer	complete reporting period	liver washing line	sum by row_id; preserve batch transfer equality	calibration records; potable-water compliance record; batch sheet
cp_washing_wastewater	liver_washing	washing wastewater and pollutant loads	flow meter and laboratory records	sample_id; start_time; end_time; wastewater_volume_m3; COD_mg_L; TN_mg_L; TP_mg_L; TSS_mg_L; oil_grease_mg_L; laboratory_method; sewer_destination	flow-proportional composite sampling matched to washing volume	m3; mg/L	representative composite per production day or permit frequency, whichever is stricter	complete reporting period	liver washing substream before sewer mixing	calculate each pollutant with calc_wastewater_pollutant_load; volume-weight across samples	accredited laboratory reports; meter calibration; chain of custody
cp_chilling_energy_temperature	air_chilling_cold_holding	liver mass, electricity, temperature and holding time	batch, sub-meter and temperature logger records	lot_id; washed_liver_input_kg; chilled_liver_output_kg; chamber_id; entry_time; release_time; holding_hours; core_temperature_C; air_temperature_C; electricity_kWh; freezing_deviation	calibrated core probes, continuous air logger and refrigeration sub-meter	kg; h; °C; kWh	every lot; continuous temperature	complete reporting period	R717 liver chilling chamber	accept only lots with all release core readings 0–3 °C and no freezing; sum route electricity	probe calibration; logger audit trail; sub-meter calibration; deviation log
cp_refrigerant_inventory	air_chilling_cold_holding	R717 replenishment and air loss	refrigerant inventory and service records	period_start; opening_charge_kg; purchases_kg; transfers_in_kg; closing_charge_kg; recovered_kg; returned_kg; transfers_out_kg; service_event; total_refrigeration_kWh; liver_route_refrigeration_kWh	closed annual refrigerant mass balance reconciled to service invoices	kg; kWh	every service event and annual close	same reporting period as product dataset	central R717 system and liver-route allocation	calculate total loss with calc_refrigerant_loss; allocate by metered refrigeration electricity share	technician records; purchase invoices; recovery receipts; signed balance
cp_packaging_materials	primary_packaging	chilled liver, LDPE and fibreboard	batch and material inventory records	lot_id; chilled_liver_input_kg; packaged_net_liver_kg; material_row_id; opening_stock_kg; receipts_kg; closing_stock_kg; returned_stock_kg; trim_waste_kg	calibrated product scale and material inventory reconciliation	kg	every lot; material inventory monthly	complete reporting period	liver packaging line	calculate consumption separately by material row_id; exclude packaging tare from reference mass	scale calibration; purchase invoices; stock count; reconciliation worksheet
cp_packaging_energy	primary_packaging	packaging electricity	meter or equipment-runtime records	date; meter_id; electricity_kWh; equipment_id; rated_power_kW; runtime_h; allocation_driver	line sub-meter; runtime calculation only if sub-meter unavailable	kWh; kW; h	daily or finer	complete reporting period	liver packaging line	sum sub-meter; otherwise sum rated_power_kW * runtime_h with disclosed load factor from measured evidence	meter check; equipment log; calculation review
cp_packaging_waste	primary_packaging	LDPE and fibreboard waste	waste-bin and consignment records	date; waste_row_id; gross_mass_kg; tare_mass_kg; destination; manifest_id	dedicated labelled bins and calibrated scale	kg	every waste removal	complete reporting period	liver packaging line	sum net mass separately by material row_id	scale check; waste manifest; bin labelling audit
cp_sanitation_inputs	equipment_sanitation	water, hot water, electricity, detergent and disinfectant	sanitation event, meter and chemical issue records	event_id; start_time; end_time; potable_water_m3; hot_water_energy_MJ; hot_water_volume_m3; supply_temperature_C; return_temperature_C; electricity_kWh; detergent_solution_kg; detergent_NaOH_mass_fraction; hypochlorite_solution_kg; available_chlorine_mass_fraction; covered_area	event-level meters and reconciled chemical issue records	m3; MJ; °C; kWh; kg solution; mass fraction	every sanitation event	complete reporting period	all route equipment and rooms	sum each atomic input; retain concentration and covered-area evidence	sanitation log; meter calibration; supplier certificate; stock reconciliation
cp_sanitation_wastewater	equipment_sanitation	sanitation wastewater and pollutant loads	flow meter and laboratory records	sample_id; start_time; end_time; wastewater_volume_m3; COD_mg_L; TN_mg_L; TP_mg_L; TSS_mg_L; oil_grease_mg_L; residual_chlorine_mg_L; laboratory_method; sewer_destination	flow-proportional composite sampling matched to sanitation volume; grab sample for residual chlorine when method requires	m3; mg/L	representative sample per sanitation regime and permit frequency, whichever is stricter	complete reporting period	sanitation substream before sewer mixing	calculate each pollutant with calc_wastewater_pollutant_load; volume-weight across samples	accredited laboratory reports; meter calibration; chain of custody
cp_coproduct_prices	slaughter_evisceration	economic allocation evidence	sales invoice and internal transfer ledger	month; product_row_id; saleable_mass_kg; gross_revenue; rebates; transport_after_gate; net_exworks_revenue; currency; exchange_rate; invoice_id; zero_price_reason	invoice reconciliation at common separation gate; no cross-organ price proxy	kg; currency	every sale; monthly close	same reporting period, normally 12 consecutive months	all marketable outputs of the joint-production block	mass-weighted net price by product_row_id; preserve every observed monthly price for sensitivity	invoices; audited ledger; exchange-rate source; signed zero-price review

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_normalize_reference	all inventory rows	normalized_amount = period_amount / packaged_net_liver_kg * 1000	period_amount; packaged_net_liver_kg	amount per 1,000 kg reference product
calc_hot_water_energy	purchased hot water	hot_water_energy_MJ = water_mass_kg * specific_heat_MJ_per_kgK * (supply_temperature_C - return_temperature_C)	hot_water_volume_m3; measured density; supply_temperature_C; return_temperature_C; accepted specific heat	MJ delivered thermal energy
calc_wastewater_pollutant_load	each wastewater pollutant row	pollutant_load_kg = wastewater_volume_m3 * concentration_mg_L / 1000	matched wastewater_volume_m3; pollutant-specific concentration_mg_L	kg pollutant transferred to off-site treatment	ifc-2007-meat-processing-ehs
calc_refrigerant_loss	R717 input and air output	refrigerant_loss_kg = opening_charge_kg + purchases_kg + transfers_in_kg - closing_charge_kg - recovered_kg - returned_kg - transfers_out_kg; liver_route_loss_kg = refrigerant_loss_kg * liver_route_refrigeration_kWh / total_refrigeration_kWh	closed refrigerant inventory; liver-route and total refrigeration electricity	kg R717 replenishment and kg NH3 to air assigned to liver route
calc_joint_mass_balance	slaughter and separation joint block	mass_balance_gap_kg = live_weight_kg - sum(all measured product and waste output masses) - measured_evaporation_or_untracked_liquid_kg	every atomic mass output; live_weight_kg; disclosed untracked liquid or evaporation term	kg and percent mass-balance gap
calc_liver_yield	liver route	liver_yield = packaged_net_liver_kg / live_weight_kg	packaged_net_liver_kg; live_weight_kg	kg packaged chilled liver per kg live sheep
calc_economic_allocation	joint-production block	AF_i = max(net_exworks_revenue_i, 0) / sum_j(max(net_exworks_revenue_j, 0)); net_exworks_revenue_i = saleable_mass_i * net_exworks_price_i	saleable mass and contemporaneous net ex-works price for each marketable product_row_id	allocation fraction for each marketable output	eu-pef-2013-allocation-hierarchy; le-feon-2020-meat-coproduct-allocation
calc_liver_joint_burden	chilled sheep liver	liver_joint_burden = AF_liver * total_joint_block_burden; add direct post-separation liver burdens without allocation	AF_liver; joint block inventory and impacts; direct liver operations	allocated upstream and slaughter burden plus direct liver burden	le-feon-2020-meat-coproduct-allocation
calc_economic_sensitivity	liver allocation	recompute AF_liver for each observed monthly price vector; report base mass-weighted AF_liver, minimum AF_liver and maximum AF_liver with the associated month and price vector	monthly cp_coproduct_prices records	reproducible economic-allocation sensitivity interval	le-feon-2020-meat-coproduct-allocation; bamber-et-al-2026-allocation-review
calc_mass_allocation_sensitivity	joint-production block	mass_AF_i = saleable_mass_i / sum_j(saleable_mass_j) for the same marketable-output set	saleable mass by product_row_id	mass-allocation sensitivity result	le-feon-2020-meat-coproduct-allocation

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_route_identity	full dataset	Dataset metadata must declare sheep liver, chilled 0–3 °C, never frozen, forced-air R717 refrigeration, LDPE plus fibreboard packaging and off-site wastewater treatment.	lot specification; process map; signed route declaration
dq_temporal_match	all records	Product, utilities, wastes, wastewater, refrigerant inventory and price evidence must cover the same reporting period; disclose any justified gap.	date-range reconciliation
dq_mass_traceability	slaughter through packaging	Preserve batch or lot links through every intermediate liver row and reconcile all joint outputs by atomic row_id.	batch ledger; calc_joint_mass_balance review
dq_meter_quality	utilities and wastewater	Use calibrated meters; disclose estimation only when a named meter is unavailable and retain the allocation worksheet.	calibration certificate; meter register; worksheet
dq_temperature_quality	chilled liver	Use calibrated core probes and continuous chamber logs; retain every deviation and disposition.	logger file; probe certificate; release record
dq_water_hygiene	washing and sanitation	Potable-water status and cleaning/disinfection records must be valid for the reporting period.	potable-water certificate; sanitation verification
dq_pollutant_sampling	wastewater	Match concentration samples to volume and operating regime; do not use permit limits as measured concentrations.	chain of custody; accredited laboratory report; sampling plan
dq_price_audit	allocation	Prices must be organ-specific, contemporaneous, net ex-works and invoice-reconciled; retain all months used in sensitivity.	invoice ledger; monthly price vector; audit sign-off
dq_no_default_amounts	all non-reference rows	Missing quantities remain explicit evidence gaps; they must not be filled with generic PCR defaults.	completeness register keyed by row_id

9. Validation Rules

rule_id	Applies to	Rule	source_ids
val_reference_identity	reference flow	Require the exact Tiangong UUID, Mass property UUID, 1,000 kg net amount and all required qualifiers.
val_single_tissue_state	product identity	Reject organ averaging, mixed-offal reference products, fresh liver, frozen liver or any lot with freezing history.
val_process_completion	process map	Require all six processes in the declared order and a detailed section for every process_id.
val_atomic_rows	process inventory	Require one card per actual material, utility, chemical, refrigerant, packaging material, co-product, waste, wastewater pollutant and air emission; reject aggregate cards such as energy, materials, chemicals, packaging, wastes or emissions.
val_uuid_policy	flow identity	Permit a flow UUID only on packaged_chilled_sheep_liver; require every other atomic flow UUID to remain blank pending separate reviewed identity selection.
val_transfer_equality	intermediate liver and pluck rows	Require batch-linked output/input equality at every adjacent process transfer; differences must be represented as a named product or waste row, not hidden loss.
val_mass_balance	joint-production block	Calculate and disclose the mass-balance gap and every included term; unexplained differences make completeness inconclusive.
val_temperature	product release	Reject lots without calibrated core readings or with any release reading below 0 °C or above 3 °C; retain evidence that product never froze.	eu-ec-853-2004-meat-hygiene
val_refrigerant_balance	R717 system	Require a closed inventory and equality of allocated R717 replenishment input and ammonia-to-air loss unless documented recovery, return or transfer terms explain the difference.
val_wastewater_no_double_count	wastewater	Require carrier volume and each pollutant load as separate rows; because wastewater is transferred off site, reject simultaneous direct-to-water elementary emissions for the same load.	ifc-2007-meat-processing-ehs
val_allocation_ledger	joint-production block	Require masses, destinations and price records for carcass, liver, heart, lungs, trachea, sheepskin and recovered blood, plus explicit treatment of zero-price and waste outputs.	le-feon-2020-meat-coproduct-allocation
val_allocation_sensitivity	liver burden	Require reproducible monthly economic sensitivity and mass-allocation sensitivity; do not accept a single undocumented economic fraction.	le-feon-2020-meat-coproduct-allocation; bamber-et-al-2026-allocation-review
val_foreground_amounts	non-reference amounts	Require foreground_record or calculated_value, its collection protocol, and reporting-period evidence; reject uncited generic defaults.
val_bilingual_structure	PCR source	Require identical ordered process_id, row_id, controlled token, formula, numeric value, UUID, URL, source_id and collection-protocol field sequences in en-US and zh-CN.

10. Published Dataset Profile

Field	Value
dataset_role	secondary_dataset; eligible as background_dataset only after independent methodology and data-quality review
downstream_use	Foreground data packages and downstream process or lifecyclemodel projections for packaged chilled sheep liver at the processing-facility gate
allowed_use	Studies whose species, tissue, chilled state, integrated slaughter route, refrigeration, packaging, wastewater boundary, geography and period are demonstrably representative
excluded_use	Other organs; mixed offal; fresh or frozen liver; goat offal; cooked products; retail or consumption stages; facilities using materially different refrigeration or wastewater routes without adaptation
required_metadata	all required qualifiers; site and period; live-sheep origin; process map; meter coverage; inspection regime; temperature evidence; package specification; wastewater destination; R717 balance; allocation ledger and sensitivities
required_quality_disclosure	data coverage by row_id; mass-balance gap; estimated meter shares; sampling representativeness; temperature deviations; refrigerant balance; missing-price months; allocation sensitivity results
update_trigger	change in organ or temperature scope, slaughter route, refrigeration technology, wastewater destination, package materials, hygiene chemicals, regulation, Tiangong reference identity, or material co-product price structure

11. Data Sources

Source id	Type	Reference	Used for
fao-who-cxc-58-2005-meat-hygiene	official_guidance	Codex Alimentarius, CXC 58-2005, Code of Hygienic Practice for Meat. https://www.fao.org/fao-who-codexalimentarius/sh-proxy/en/?lnk=1&url=https%253A%252F%252Fworkspace.fao.org%252Fsites%252Fcodex%252FStandards%252FCXC%2B58-2005%252FCXC_058e.pdf (retrieved 2026-08-13)	slaughter hygiene, inspection, cross-contamination control, temperature records and traceability
eu-ec-853-2004-meat-hygiene	standard	Regulation (EC) No 853/2004, specific hygiene rules for food of animal origin. https://eur-lex.europa.eu/eli/reg/2004/853/oj/eng (retrieved 2026-08-13)	offal chilling to no more than 3 °C, cold-chain and packaging/storage controls
eu-ec-852-2004-food-hygiene	standard	Regulation (EC) No 852/2004, hygiene of foodstuffs. https://eur-lex.europa.eu/eli/reg/2004/852/oj/eng (retrieved 2026-08-13)	potable water, equipment cleaning/disinfection, waste handling and packaging hygiene
fao-small-ruminant-slaughter-manual	handbook	FAO, Manual for the slaughter of small ruminants in developing countries, Chapters 7–8. https://www.fao.org/4/x6552e/X6552E07.htm and https://www.fao.org/4/x6552e/X6552E08.htm (retrieved 2026-08-13)	liver as red offal, separate offal cleaning, organ separation, waste and chilling route decomposition
fao-slaughter-meat-processing-guidelines	handbook	FAO, Guidelines for slaughtering, meat cutting and further processing. https://www.fao.org/4/t0279e/T0279E04.htm (retrieved 2026-08-13)	inspection, trimming, minimum clean-water washing and immediate refrigeration
fao-meat-cold-store-manual	handbook	FAO, Manual on meat cold store operation and management. https://www.fao.org/4/T0098E/T0098E02.htm (retrieved 2026-08-13)	primary chilling endpoint and separate control of edible offal
ifc-2007-meat-processing-ehs	official_guidance	IFC / World Bank Group, Environmental, Health, and Safety Guidelines for Meat Processing, 2007. https://www.ifc.org/content/dam/ifc/doc/2000/2007-meat-processing-ehs-guidelines-en.pdf (retrieved 2026-08-13)	separate water, energy, waste and wastewater pollutant records; COD, TN, TP, TSS and oil-and-grease parameters
us-epa-2004-meat-effluent-development	official_guidance	US EPA, Technical Development Document for the Final Effluent Limitations Guidelines and Standards for the Meat and Poultry Products Point Source Category, 2004. https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=P100Q1U2.TXT (retrieved 2026-08-13)	total residual chlorine as a distinct meat-processing wastewater parameter
eu-pef-2013-allocation-hierarchy	official_guidance	European Commission Recommendation 2013/179/EU on Product Environmental Footprint methods. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32013H0179 (retrieved 2026-08-13)	subdivision priority, physical relationship and documented economic-allocation fallback
le-feon-2020-meat-coproduct-allocation	literature	Le Féon, S. et al. (2020), Allocation factors for meat coproducts: Dataset to perform life cycle assessment at slaughterhouse. Data in Brief 33:106558. https://doi.org/10.1016/j.dib.2020.106558	lamb slaughter co-product mass, economic and biophysical allocation and sensitivity evidence
bamber-et-al-2026-allocation-review	literature	Bamber, N., Kroebel, R. and Pelletier, N. (2026), Allocation in field crop and livestock life cycle assessment. International Journal of Life Cycle Assessment. https://doi.org/10.1007/s11367-026-02618-z	allocation hierarchy, causal alternatives and price-volatility sensitivity