Crabs, frozen, dried, salted or in brine

1. Scope and Applicability

This PCR covers uncooked crabs, in shell or not, preserved for sale by exactly one declared route: freezing, drying, dry-salting, or holding in brine. It covers foreground operations from receipt at the preserving facility through packaged product at the factory gate. Live, fresh or merely chilled crabs, and cooked, smoked, canned, seasoned, or otherwise processed crab products are excluded. Capture or aquaculture, landing, and inbound transport are represented by upstream datasets and are not re-created inside the preserving foreground.

Route-specific operations are conditional. A dataset shall not add freezing, drying, salting, or brining inventories that did not occur, and shall not average mutually exclusive routes into one product unless a documented sequential route actually uses them.

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.crabs-frozen-dried-salted-or-in-brine
classification_refs	CPC 3.0: 21251, Crabs, frozen, dried, salted or in brine (unsd-cpc-3-0)
covered_products	Uncooked crabs, whether in shell or not, preserved by freezing, drying, dry-salting, or brine
excluded_products	Live, fresh, or chilled crabs; cooked, smoked, canned, seasoned, or otherwise processed crab products; lobsters, shrimps, prawns, and other non-crab crustaceans
representative_product	Packaged uncooked crab preserved by one declared route and ready to leave the preserving facility
production_route	Raw-crab receipt and preparation; one declared preservation route; route-appropriate storage; packaging and factory-gate dispatch
market_state	Frozen, dried, dry-salted, or in brine; shell state and preservation route declared

3. Reference Flow

Field	Value
What	Supply of preserved uncooked crab at the preserving facility gate
How much	1 kg net mass of the declared crab product
How well	Conforms to the declared preservation route, shell state, product specification, and applicable food-safety controls
How long or cycle	One production lot through factory-gate release; storage duration declared
reference_flow_link	The reference product flow below realizes the functional unit

Field	Value
Reference amount	1 kg net mass
Reference product flow	Crabs, frozen, dried, salted or in brine 43cd42a0-2692-4f75-b26d-223ae1ddc8f3
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	preservation route; crab species or commercial grouping; shell state; raw/uncooked state; origin and upstream dataset reference; incoming state; glaze applied and glaze mass if any; brine present and brine formulation/mass if any; legal net-mass convention; product moisture or salt specification where relevant; storage temperature and duration; packaging format; facility, geography, and reference period

When constructing a foreground data package, the items listed in Required qualifiers must be declared in dataset metadata, process notes, reference flow comment, product description, or an equivalent data package field. Missing required qualifiers make the reference flow definition incomplete for that data package.

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	Normalize all results to 1 kg measured net mass of the declared crab product at factory-gate release. Exclude packaging. Record glaze and free covering brine separately and disclose whether either is included in the legally declared net quantity.
route_mass_accounting	Crab and preservation media	Mass	kg	Record incoming crab, route product, glaze, salt, added water or brine, residuals, and wastewater as separate measured or calculated masses; do not infer crab mass from gross packaged mass.
energy_units	Electricity and thermal energy	Energy	kWh and MJ	Keep metered electricity and fuel or thermal energy distinct. Document conversions and lower/higher heating-value basis where fuels are converted to MJ.
refrigerant_balance	Refrigeration systems	Mass	kg	Calculate refrigerant loss from documented charge, top-up, recovery, and closing inventory records; do not equate electricity use with refrigerant emissions.

5. System Boundary

The foreground begins when raw or previously chilled/frozen crab and auxiliary materials are accepted by the preserving facility. It ends when the declared preserved crab is packaged and released at the factory gate. Include preparation, the actual preservation route, route-appropriate storage, packaging, water and ice, salt or brine ingredients, electricity and thermal energy, refrigerant losses, product loss, residues, wastewater, and on-site treatment directly attributable to the lot. Upstream production and transport of crab and other product inputs require linked datasets. Distribution, retail, use, and end-of-life after the factory gate are outside this foreground.

Boundary Abstraction

Field	Value
declared_starting_condition	Crab received at the preserving facility, with species/grouping, shell state, raw or previously frozen/chilled condition, supplier/landing origin, receipt mass, receipt temperature, and upstream dataset reference declared
starting_condition_role	Foreground entry condition for preservation; upstream capture/aquaculture, landing, and inbound transport remain represented by linked upstream datasets
product_classification_scope	Uncooked crabs in CPC 3.0 subclass 21251 and the semantic scope stated in this PCR
recursive_input_rule	If a received input is already a product in this PCR category, record it once as an upstream product input with its preservation state and upstream dataset; do not recreate its prior preservation inventory in the current foreground
upstream_dataset_requirement	Require traceable upstream datasets for crab and material or energy inputs; disclose substitutions, geography, time period, technology, and unresolved gaps
disclosure	Declare actual route sequence, shell state, incoming and final product states, yield, glaze/brine treatment, storage conditions and duration, packaging, excluded operations, allocation, data gaps, and provisional estimates

rule_id	Applies to	Rule	source_ids
sb_facility_gate	All datasets	Include all attributable foreground operations from receipt through packaged factory-gate release and link upstream datasets for crab and other product inputs.	codex-cxc-52-2003; eu-pef-2021-2279
sb_route_exclusivity	Preservation route	Include only the actual declared route steps; do not combine mutually exclusive freezing, drying, dry-salting, and brining inventories without a documented sequential route.	codex-cxc-52-2003
sb_losses_and_controls	All included processes	Include product losses, residues, wastewater, on-site treatment, route-control energy, and measured refrigerant losses when they occur.	codex-cxc-52-2003; eu-pef-2021-2279
sb_food_safety_records	Preservation and storage	Retain route-specific time, temperature, salt/brine concentration, drying, hygiene, and corrective-action records required by the facility HACCP or equivalent food-safety plan.	codex-cxc-52-2003

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
receipt_preparation	Raw-crab receipt and preparation	required	Always; include only preparation actually performed	Establish accepted input, removal of non-product material, washing and chilling records	kg prepared crab output
route_preservation	Declared preservation route	required	Exactly one principal route: freezing, drying, dry-salting, or brining; add sequential steps only when actually used	Produce the declared preserved state	kg preserved crab output
route_storage	Route-appropriate product storage	required	Frozen storage for frozen product; controlled dry or chilled storage as required by the declared dried, salted, or brined product	Maintain declared state until packaging/release	kg stored preserved crab output and storage duration
packaging_dispatch	Packaging and factory-gate release	required	Always	Package, label, weigh, and release reference product	1 kg net reference product

Process: Raw-crab receipt and preparation (receipt_preparation)

Inputs

Product flows

Received crab (received_crab)

Record supplier or landing mass and the declared incoming state as the upstream product input.

• Selected flow: Crabs, raw or previously chilled/frozen
• Flow property / unit: Mass / kg
• Amount rule: measured accepted lot mass
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg prepared crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_mass
• Sources: unsd-cpc-3-0

Preparation water (preparation_water)

Record potable water crossing the process boundary for washing or preparation.

• Selected flow: Process water
• Flow property / unit: Mass / kg
• Amount rule: measured or allocated meter volume converted using documented density
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg prepared crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_utilities
• Range: Provisional water-use QA screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 30
  • Unit: kg/kg prepared crab output
  • Basis: per kg prepared crab output
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Preparation ice (preparation_ice)

Record purchased or on-site produced ice used to hold product condition.

• Selected flow: Ice
• Flow property / unit: Mass / kg
• Amount rule: measured issue or production mass
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg prepared crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_utilities
• Range: Provisional ice-use QA screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 10
  • Unit: kg/kg prepared crab output
  • Basis: per kg prepared crab output
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Elementary flows

Outputs

Product flows

Prepared crab (prepared_crab)

Calculate prepared crab mass from measured batch outputs before preservation.

• Selected flow: Prepared uncooked crab
• Flow property / unit: Mass / kg
• Amount rule: measured output mass
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: process output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_mass

Waste flows

Preparation residuals (preparation_residuals)

Record shells, damaged product, rejected material, and other residuals separately by destination and waste/co-product status.

• Selected flow: Crab preparation residuals
• Flow property / unit: Mass / kg
• Amount rule: measured residual mass by destination
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg prepared crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_residuals_wastewater

Preparation wastewater (preparation_wastewater)

Record discharged water and its treatment destination; characterize relevant load where monitored.

• Selected flow: Wastewater from seafood preparation
• Flow property / unit: Mass / kg
• Amount rule: measured discharge or documented water-balance calculation
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg prepared crab output
• Basis kind: Process output (process_output)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_residuals_wastewater

Elementary flows

Process: Declared preservation route (route_preservation)

Inputs

Product flows

Prepared crab input (preservation_crab_input)

Carry the measured prepared crab into the declared route without duplicating upstream preparation.

• Selected flow: Prepared uncooked crab
• Flow property / unit: Mass / kg
• Amount rule: transferred batch mass
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg preserved crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_mass

Salt input (preservation_salt)

Record food-grade salt only for dry-salted or brined routes, including salt used to prepare brine.

• Selected flow: Sodium chloride, food grade
• Flow property / unit: Mass / kg
• Amount rule: measured salt issued minus documented recovered unused salt; zero for routes without salt
• Value mode: Foreground record (foreground_record)
• Specificity: Route-specific (route_specific)
• Normalization basis: per kg preserved crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_route_materials_controls
• Sources: codex-cxc-52-2003
• Range: Provisional salt-use QA screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 2
  • Unit: kg/kg preserved crab output
  • Basis: per kg preserved crab output
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Preservation water (preservation_water)

Record water used for brine, glazing, or route cleaning separately by purpose; zero where absent.

• Selected flow: Process water
• Flow property / unit: Mass / kg
• Amount rule: measured or calculated from batch recipe and meters
• Value mode: Calculated value (calculated_value)
• Specificity: Route-specific (route_specific)
• Normalization basis: per kg preserved crab output
• Basis kind: Process output (process_output)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_route_materials_controls
• Sources: codex-cxc-52-2003

Preservation electricity (preservation_electricity)

Record route equipment electricity, including freezing or drying auxiliaries actually used.

• Selected flow: Electricity
• Flow property / unit: Energy / kWh
• Amount rule: submetered or documented equipment allocation
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per kg preserved crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_utilities
• Range: Provisional electricity-use QA screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 25
  • Unit: kWh/kg preserved crab output
  • Basis: per kg preserved crab output
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Preservation thermal energy (preservation_thermal_energy)

Record fuel or supplied heat for drying or other actual route heating; zero when absent.

• Selected flow: Thermal energy
• Flow property / unit: Energy / MJ
• Amount rule: metered heat or fuel quantity converted with documented heating value
• Value mode: Calculated value (calculated_value)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per kg preserved crab output
• Basis kind: Process output (process_output)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_utilities
• Range: Provisional thermal-energy QA screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 100
  • Unit: MJ/kg preserved crab output
  • Basis: per kg preserved crab output
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Elementary flows

Outputs

Product flows

Preserved crab (preserved_crab)

Record output after the declared route and keep glaze, free brine, moisture, and salt accounting explicit.

• Selected flow: Crabs, frozen, dried, salted or in brine
• Flow property / unit: Mass / kg
• Amount rule: measured preserved-product mass before storage
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: process output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_mass
• Sources: codex-cxc-52-2003

Waste flows

Preservation residuals and wastewater (preservation_residuals_wastewater)

Record rejected crab, spent brine or salt, cleaning wastewater, and route residues separately by material and destination in the foreground records.

• Selected flow: Preservation residuals and wastewater
• Flow property / unit: Mass / kg
• Amount rule: measured discharge and residual mass, disaggregated in source records
• Value mode: Foreground record (foreground_record)
• Specificity: Route-specific (route_specific)
• Normalization basis: per kg preserved crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_residuals_wastewater
• Range: Provisional combined discharge QA screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 40
  • Unit: kg/kg preserved crab output
  • Basis: per kg preserved crab output
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Elementary flows

Process: Route-appropriate product storage (route_storage)

Inputs

Product flows

Preserved crab entering storage (storage_crab_input)

Record preserved crab transferred to route-appropriate storage.

• Selected flow: Crabs, frozen, dried, salted or in brine
• Flow property / unit: Mass / kg
• Amount rule: measured transfer mass
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per kg stored preserved crab output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_mass

Storage electricity (storage_electricity)

Record electricity allocated from metered storage energy using occupancy, mass-time, or another disclosed causal driver.

• Selected flow: Electricity
• Flow property / unit: Energy / kWh
• Amount rule: metered storage electricity allocated by documented mass-time or causal driver
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg stored product and declared storage duration
• Basis kind: Storage duration (storage_duration)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_storage_refrigeration

Waste flows

Elementary flows

Outputs

Product flows

Stored preserved crab (stored_preserved_crab)

Record release mass after route-appropriate storage and separately record storage losses.

• Selected flow: Crabs, frozen, dried, salted or in brine
• Flow property / unit: Mass / kg
• Amount rule: measured storage-release mass
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: process output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_mass

Waste flows

Elementary flows

Refrigerant loss (refrigerant_loss)

Record refrigerant species and calculated loss only for equipment serving the included route or storage.

• Selected flow: Refrigerant emission, species-specific
• Flow property / unit: Mass / kg
• Amount rule: documented refrigerant balance allocated by disclosed causal driver
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg stored product and declared storage duration
• Basis kind: Storage duration (storage_duration)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_storage_refrigeration

Process: Packaging and factory-gate release (packaging_dispatch)

Inputs

Product flows

Stored crab input (packaging_crab_input)

Record the preserved product transferred into final packaging.

• Selected flow: Crabs, frozen, dried, salted or in brine
• Flow property / unit: Mass / kg
• Amount rule: measured transfer mass
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per kg net reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_mass

Packaging materials (packaging_materials)

Record each primary, secondary, and tertiary packaging material separately in source records.

• Selected flow: Packaging material, material-specific
• Flow property / unit: Mass / kg
• Amount rule: measured issue minus returned unused material, disaggregated by material
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per kg net reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging
• Range: Provisional packaging-mass QA screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 1
  • Unit: kg/kg net reference product
  • Basis: per kg net reference product
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Elementary flows

Outputs

Product flows

Factory-gate reference product (reference_product_output)

This is the sole quantitative reference output; packaging is excluded from its net mass.

• Selected flow: Crabs, frozen, dried, salted or in brine 43cd42a0-2692-4f75-b26d-223ae1ddc8f3
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: fixed reference amount of 1 kg measured net product mass
• Value mode: Fixed value (fixed_value)
• Specificity: Not applicable (not_applicable)
• Normalization basis: 1 kg net reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Identity reference (identity_reference)

Waste flows

Packaging waste (packaging_waste)

Record trim, rejects, and damaged packaging separately by material and destination.

• Selected flow: Packaging waste, material-specific
• Flow property / unit: Mass / kg
• Amount rule: measured packaging waste
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per kg net reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging

Elementary flows

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
alloc_subdivision_first	Shared processes and mutually exclusive routes	Prefer process subdivision and route-specific metering. Do not allocate a blended facility inventory while separable route records are available.	eu-pef-2021-2279
alloc_residual_status	Shells, rejected crab, spent salt/brine, and other outputs	Classify each output as product, co-product, recyclable material, or waste using documented ownership, intended use, treatment, and economic value. Waste treatment burdens remain with the process that generates the waste.	eu-pef-2021-2279
alloc_fallback	Unavoidable multi-output process	After subdivision and other justified avoidance are exhausted, use a documented physical causal relation; if none can be justified, use economic allocation with contemporaneous prices and sensitivity analysis.	eu-pef-2021-2279
alloc_disclosure	All allocated inventories	Report allocation driver, quantities, prices or physical parameters, period, resulting factors, treatment of zero-value outputs, and sensitivity result.	eu-pef-2021-2279

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_batch_mass	receipt_preparation; route_preservation; route_storage; packaging_dispatch	Crab inputs, transfers, outputs, glaze/free-brine mass, and losses	Scale tickets and batch records	batch_id; route; species/grouping; shell_state; incoming_state; gross_mass; tare; net_crab_mass; glaze_mass; free_brine_mass; output_mass; timestamp; scale_id	Calibrated scales and reconciled batch records	kg	Each lot and transfer	Representative continuous 12-month period or complete seasonal campaign	All facilities and lines in scope	Sum by homogeneous route and normalize to released net reference-product mass	Calibration certificates, signed batch records, and reconciliation
cp_utilities	receipt_preparation; route_preservation	Water, ice, electricity, fuel, and supplied heat	Meter, invoice, and equipment log	meter_id; opening; closing; unit; period; batch_id; equipment; runtime; allocation_driver; heating_value_basis	Submeter first; otherwise documented causal allocation from facility meters	kg; m3; kWh; MJ; fuel unit	Per batch where metered, otherwise at least monthly	Same representative period as production	All included equipment	Convert units explicitly, allocate by causal driver, and normalize to process output	Meter calibration, invoices, runtime logs, and allocation workbook
cp_route_materials_controls	route_preservation	Salt, brine, glaze, route time/temperature, drying, and concentration controls	Recipe, issue, sensor, and HACCP records	route; salt_mass; water_mass; brine_mass; concentration; glaze_mass; start_time; end_time; temperature_series; drying_condition; corrective_action	Weigh ingredients and retain validated control records for the actual route	kg; concentration unit; °C; h	Each batch	Complete study period	Each route and line	Keep routes separate; calculate recipe inputs and summarize validated controls by batch	Calibrated instruments, approved recipe, HACCP verification, and corrective-action log
cp_residuals_wastewater	receipt_preparation; route_preservation	Residuals, rejects, spent brine/salt, wastewater, and treatment	Weights, discharge meter, manifests, and analyses	stream_id; material; mass_or_volume; destination; waste_or_coproduct_status; treatment; water_quality_parameter; result; period	Direct weighing/metering; documented water balance only where direct measurement is unavailable	kg; m3; parameter-specific	Each batch or shipment; wastewater at least monthly	Same representative period as production	All included discharge points	Sum by stream and destination; normalize to process output	Waste manifests, meter checks, laboratory reports, and balance reconciliation
cp_storage_refrigeration	route_storage	Storage energy, duration, conditions, refrigerant charge/top-up/recovery/loss	Meter, warehouse, temperature, and maintenance records	storage_zone; product_mass; entry_time; exit_time; temperature_series; electricity; refrigerant_species; opening_charge; top_up; recovered; closing_charge; service_event	Meter storage energy; calculate mass-time; reconcile refrigerant balance	kWh; kg; kg·day; °C	Continuous temperature; monthly energy; every service event	Same representative period as production	Every included storage zone and refrigeration system	Allocate energy and refrigerant balance by disclosed causal driver, preferably mass-time and equipment service	Meter checks, temperature logs, inventory records, and service certificates
cp_packaging	packaging_dispatch	Packaging inputs and packaging waste	Bill of materials, issue, return, and waste records	material_id; material_type; issued_mass; returned_mass; packed_units; net_product_mass; waste_mass; recycled_content	Reconcile material issues and returns by packaging format	kg	Each format and production period	Same representative period as production	All packaging lines in scope	Net used packaging and waste by material per kg net reference product	Supplier specification, inventory reconciliation, and scale checks

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_normalize_reference	Every inventory row	normalized amount = attributable row amount / released net reference-product mass	Attributable row quantity; released net product kg	Row amount per 1 kg reference product
calc_route_yield	Each declared route	route yield = released net reference-product mass / accepted crab input mass; also report intermediate preparation and preservation yields	Accepted crab; prepared crab; preserved crab; stored crab; released net product	Route and stage yields	codex-cxc-52-2003
calc_water_balance	Preparation and preservation	wastewater estimate = metered water and ice inputs + water in materials - water retained in product - measured evaporation - other documented outputs; use only when discharge is not directly metered	Water, ice, brine, product moisture, evaporation, outputs	Calculated wastewater mass
calc_refrigerant_balance	Included refrigeration	loss = opening charge + top-ups - recovered refrigerant - closing charge, bounded at zero and reconciled to service records before allocation	Species-specific charge, top-up, recovery, closing inventory	Species-specific refrigerant loss
calc_allocation	Unavoidable shared or multi-output inventory	Apply alloc_subdivision_first, then the documented physical causal factor, or economic factor only when physical causality is not justified; factors shall sum to one	Shared inventory; output quantities; causal parameter or prices	Allocated inventory and factors	eu-pef-2021-2279

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	Product and route	Preserve lot, species/grouping, shell state, actual route, incoming state, origin, and upstream dataset links.	Traceability and supplier records; unsd-cpc-3-0
dq_measurement	Mass, utilities, temperature, concentration, and refrigerant	Use calibrated or verified instruments; retain units, conversion factors, missing-data treatment, and meter allocation.	Calibration, meter, recipe, laboratory, and maintenance records
dq_temporal	Foreground activity	Cover a representative continuous 12 months or a complete seasonal campaign and disclose abnormal or excluded periods.	Production calendar and completeness report; eu-pef-2021-2279
dq_completeness	All included processes	Reconcile crab mass and account for water, ice, salt/brine, energy, packaging, residuals, wastewater, storage, and refrigerant losses where applicable.	Mass/utility balances and gap register; eu-pef-2021-2279
dq_route_separation	Multi-route facilities	Keep route and technology records separate or document causal allocation; never use an unexplained blended average.	Route production records and allocation workbook
dq_estimate_replacement	Provisional QA ranges	Treat every reasoned_estimate range only as a screening flag, not a default inventory value; replace or justify it with reviewed route/site evidence before activation.	Review record and replacement evidence

9. Validation Rules

rule_id	Applies to	Rule	source_ids
val_identity	Reference product	Confirm CPC scope, uncooked crab identity, shell state, actual preservation route, and all required qualifiers; reject excluded cooked, smoked, canned, or merely fresh/chilled products.	unsd-cpc-3-0
val_reference_mass	Reference flow	Confirm exactly one quantitative reference output of 1 kg net product mass using the specified product-flow, Mass-property, and unit-group UUIDs; packaging shall be excluded and glaze/free-brine treatment disclosed.
val_route	Process map and inventory	Confirm the actual route is declared and only applicable route operations, materials, controls, storage, and emissions are included.	codex-cxc-52-2003
val_mass_balance	Each process and lot	Reconcile input, product output, retained water/salt, residual, wastewater, evaporation, and storage loss; investigate material imbalance rather than forcing closure.
val_inventory_completeness	Foreground boundary	Confirm all four process roles are represented and applicable water, ice, salt/brine, energy, packaging, wastewater, residual, on-site treatment, and refrigerant records are present or explicitly zero/not applicable.	eu-pef-2021-2279
val_food_safety_controls	Preservation and storage	Confirm route-specific time, temperature, concentration, drying, hygiene, monitoring, and corrective-action evidence is retained; this PCR does not replace a facility-specific HACCP plan.	codex-cxc-52-2003
val_allocation	Shared and multi-output processes	Confirm subdivision was attempted first and any remaining physical or economic allocation is documented with factors summing to one and sensitivity where required.	eu-pef-2021-2279
val_provisional_ranges	All reasoned estimates	Flag values outside provisional QA ranges and all uses of a provisional range as a default; a flag requires review and does not by itself prove non-conformance.

10. Published Dataset Profile

Field	Value
dataset_role	Foreground production dataset for preserved uncooked crab at the preserving facility gate
downstream_use	secondary_dataset; background_dataset after review and publication
allowed_use	Route-, geography-, technology-, and time-representative process or lifecycle models that preserve the declared qualifiers and boundary
excluded_use	Live/fresh/chilled, cooked, smoked, canned, or other crab products; another preservation route; undisclosed route blends; geographies or technologies without representativeness review
required_metadata	PCR id/version; product and route qualifiers; facility/geography; reference period; upstream dataset links; process map; storage duration/conditions; packaging; allocation; data-quality assessment
required_quality_disclosure	Primary-data coverage; mass and utility reconciliation; missing data; provisional estimates; instrument quality; allocation and sensitivity; excluded operations; route and seasonal representativeness
update_trigger	Material change in route, recipe, equipment, energy supply, refrigerant, yield, packaging, supplier/origin, allocation, regulation, evidence, or data older than the declared representativeness period

11. Data Sources

Source id	Type	Reference	Used for
unsd-cpc-3-0	official_guidance	United Nations Statistics Division, Central Product Classification Version 3.0, subclass 21251 explanatory note, https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf (retrieved 2026-08-11)	Product-category scope, inclusions, and exclusions
codex-cxc-52-2003	standard	Codex Alimentarius, CXC 52-2003, Code of Practice for Fish and Fishery Products, https://www.fao.org/4/a1553e/a1553e00.pdf (retrieved 2026-08-11)	Facility process decomposition; freezing, salting/brining, drying, storage, packaging, hygiene, monitoring, and food-safety control records
eu-pef-2021-2279	official_guidance	European Commission Recommendation (EU) 2021/2279 on the use of the Environmental Footprint methods, CELEX 32021H2279, https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32021H2279 (retrieved 2026-08-11)	Boundary completeness, company-specific data quality, multifunctionality hierarchy, allocation disclosure, and review requirements