Fork-lift trucks, other works trucks, and railway-station platform tractors

1. Scope and Applicability

This PCR covers cradle-to-gate production of new, complete fork-lift trucks, other works trucks with or without lifting or handling equipment, and tractors designed for railway-station platform work. It applies to manually operated or automated industrial trucks with electric or internal-combustion powertrains. It excludes crane-fitted works trucks whose principal function is lifting by crane, separately sold parts, remanufactured trucks, distribution, use, maintenance, and end-of-life. Downstream studies shall add the excluded life-cycle stages explicitly.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.general-purpose-machinery.fork-lift-trucks-other-works-trucks-whether-or-not-fitted-with-lifting-or-handling-equi-02ca9dbe
classification_refs	CPC 3.0:43530
covered_products	Fork-lift trucks; other works trucks with or without lifting or handling equipment; railway-station platform tractors
excluded_products	Crane-fitted works trucks classified by their crane function; lifts and conveyors; separately sold parts; remanufactured trucks
representative_product	One new, complete, factory-tested industrial truck in its declared delivered configuration
production_route	Purchased-material and component receipt; metal fabrication; surface finishing; powertrain and final assembly; factory testing
market_state	New complete truck at the manufacturing-site gate, with delivered attachments, traction battery, fluids, and initial fuel explicitly declared

3. Reference Flow

Field	Value
What	Provide one new industrial truck capable of the declared lifting, carrying, towing, pushing, stacking, or platform-tractor function
How much	One complete truck
How well	Conforming to the declared model specification, rated load or towing capacity, lift height where applicable, powertrain, tyre construction, attachments, and acceptance-test result
How long or cycle	Factory-gate product; design life and warranted duty shall be disclosed for downstream use but are not normalized in this cradle-to-gate PCR
reference_flow_link	Net mass of the same complete truck reported as the reference product output

Field	Value
Reference amount	Measured net mass in kg of one complete delivered truck
Reference product flow	Fork-lift trucks, other works trucks whether or not fitted with lifting or handling equipment, tractors of the type used on railway station platforms 16db3897-10b6-48ba-a91a-d4b4bc52f185
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	model and configuration; industrial-truck function; rated load or towing capacity; lift height where applicable; operator or automation mode; powertrain and energy carrier; traction-battery chemistry, capacity, mass and inclusion; tyre construction; attachments; counterweight inclusion; hydraulic-fluid inclusion; initial-fuel inclusion; factory-gate geography; production period; net-mass method; acceptance-test status

Missing required qualifiers make a foreground data package incomplete.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
mu_reference_mass	reference product	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Weigh the complete delivered configuration after final test; exclude reusable factory handling fixtures and separately reported transport packaging, and disclose battery, attachment, fluid, counterweight, and initial-fuel inclusion.
mu_count_to_mass	item-count purchase records	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Convert counts to mass using lot-specific measured net mass or supplier documentation; retain the count, mass factor, lot and uncertainty.
mu_electricity	purchased electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200b9a66	MJ	Preserve metered kWh and convert to MJ using 1 kWh = 3.6 MJ; do not add upstream generation emissions as direct factory emissions.
mu_gas_volume	gaseous inputs	Volume 93a60a56-a3c8-22da-a746-0800200c9a66	m3	Record meter reference temperature and pressure and convert all gaseous volumes to one disclosed reference condition.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Purchased materials, components, energy carriers and process auxiliaries received at the manufacturing site
starting_condition_role	Foreground manufacturing starts at site receipt; upstream production remains linked through supplier-specific or representative upstream datasets
product_classification_scope	New complete products within the semantic boundary above, independent of powertrain, operator mode or optional handling equipment
recursive_input_rule	A complete same-category truck purchased for conversion is recorded once as a product input with an upstream PCR-conforming dataset; do not recursively reproduce its manufacturing inventory
upstream_dataset_requirement	Every purchased material, component, fuel, electricity and treatment service shall have a geographically and technologically representative upstream dataset and disclosed substitution where supplier data are unavailable
disclosure	Declare site, production period, model family, included processes, excluded attributable processes and justification, outsourced operations, allocation, data gaps, and all deviations from the delivered configuration

rule_id	Applies to	Rule	source_ids
sb_gate	cradle-to-gate foreground boundary	Include receipt, controlled metal fabrication, surface preparation and coating, powertrain and final assembly, fluid filling, factory testing, rework, on-site treatment, and directly controlled utilities through release of the finished truck.	ghg-protocol-product-standard-2011
sb_upstream	purchased inputs	Link upstream production and inbound supply datasets without moving them into the foreground unless the reporting organization controls the process.	ghg-protocol-product-standard-2011
sb_exclusions	attributable processes	Disclose and justify every exclusion; an attributable process may be omitted only after the data gap, inability to estimate, and insignificance assessment are documented.	ghg-protocol-product-standard-2011
sb_route	variant-specific processes	Include only processes and atomic flows applicable to the declared configuration; never average electric and internal-combustion routes without a disclosed, representative production-weighted model.	toyota-industries-materials-handling-equipment

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
metal_fabrication	Metal fabrication	required		Controlled cutting, forming, machining and welding	Per complete truck released to finishing
surface_finishing	Surface preparation and finishing	required		Cleaning, pretreatment, coating and curing	Per complete truck released to assembly
final_assembly	Powertrain and final assembly	required		Component installation, fluid filling and configuration	Per complete truck entering factory test
factory_testing	Factory testing and release	required		Acceptance testing, rework attribution and product release	Per complete accepted truck

Process: Metal fabrication (metal_fabrication)

Inputs

Product flows

Structural steel sheet (mf_steel_sheet)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Non-Alloy Steel ce3ac926-5d6f-4558-9edc-67179d93dde4
• Flow property / unit: Mass / kg
• Amount rule: Net issued mass plus attributable cutting and forming losses.
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mf_inputs
• Sources:

Cast-iron components (mf_cast_iron)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Cast iron abfe4e3d-cbaf-5c44-a687-a49d83a0430c
• Flow property / unit: Mass / kg
• Amount rule: Received cast-iron mass incorporated plus attributable rejected mass.
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mf_inputs
• Sources:

Flux-cored welding wire (mf_welding_wire)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Flux Cored Wire 1b74a576-06e0-4764-97ce-11a73f8a4752
• Flow property / unit: Mass / kg
• Amount rule: Issued wire less verified unused return, only when flux-cored welding is used.
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mf_inputs
• Sources:

Fabrication electricity (mf_electricity)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered electricity converted from kWh under mu_electricity.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_mf_inputs
• Sources:

Cutting oxygen (mf_oxygen)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Industrial oxygen bd4b0f96-2090-4806-a648-335ab20ff401
• Flow property / unit: Volume / m3
• Amount rule: Metered or cylinder-inventory oxygen only when oxy-fuel cutting is used.
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_mf_inputs
• Sources:

Waste flows

Record each actual off-site ferrous scrap, spent machining fluid, abrasive or treatment residue as its own waste exchange in the foreground package.

Elementary flows

Record measured releases from controlled fabrication equipment as species-specific elementary flows.

Outputs

Product flows

Internal fabricated assemblies are internal transfers and are not duplicated as external exchanges.

Waste flows

Elementary flows

Process: Surface preparation and finishing (surface_finishing)

Inputs

Product flows

Process water (sf_process_water)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: Metered water mass used for cleaning, rinsing and bath make-up.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sf_inputs
• Sources:

Sodium hydroxide (sf_sodium_hydroxide)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Sodium hydroxide e0abcced-0611-4c24-9290-5a2c5a0c4169
• Flow property / unit: Mass / kg
• Amount rule: Active sodium-hydroxide mass charged, only when used in the declared bath recipe.
• Value mode: Calculated value (calculated_value)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sf_inputs
• Sources:

Industrial protective coating (sf_coating)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Industrial Maintenance Coatings 46c99c8a-0ae9-4be8-972f-a2b9ab3baaf5
• Flow property / unit: Mass / kg
• Amount rule: Coating issued less verified reusable return; declare formulation, solids and application route.
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_sf_inputs
• Sources:

Finishing electricity (sf_electricity)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered electricity converted from kWh.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sf_inputs
• Sources:

Curing natural gas (sf_natural_gas)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: natural gas in the gaseous state 4f19ca0e-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Volume / m3
• Amount rule: Standardized metered volume only when natural-gas curing or bath heating is used.
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_sf_inputs
• Sources:

Waste flows

Record each spent bath, wastewater stream, coating sludge and spent filter separately by physical state and treatment route.

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Fossil carbon dioxide from finishing combustion (sf_co2_fossil)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Measured stack mass or calculated fossil-carbon balance for on-site natural-gas combustion; exclude upstream electricity emissions.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_sf_emissions
• Sources:

Process: Powertrain and final assembly (final_assembly)

Inputs

Product flows

Assembly electricity (fa_electricity)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered assembly electricity converted from kWh.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_fa_inputs
• Sources:

Hydraulic-fluid fill (fa_hydraulic_fluid)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Hydraulic Fluid eafff56c-3487-4345-9f24-00429f61c556
• Flow property / unit: Mass / kg
• Amount rule: Net new hydraulic-fluid mass retained in the delivered truck plus attributable fill loss.
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fa_inputs
• Sources:

Lead-acid traction battery (fa_lead_acid_battery)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Lead-acid traction battery
• Flow property / unit: Mass / kg
• Amount rule: Delivered battery-pack mass, only for a configuration supplied with a lead-acid traction battery.
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fa_inputs
• Sources:

Lithium-ion traction battery (fa_lithium_ion_battery)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Lithium-ion traction battery
• Flow property / unit: Mass / kg
• Amount rule: Delivered battery-pack mass, only for a configuration supplied with a lithium-ion traction battery.
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fa_inputs
• Sources:

Solid industrial-truck tyre (fa_solid_tyre)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Solid rubber industrial-truck tyre
• Flow property / unit: Mass / kg
• Amount rule: Installed tyre mass, only for a configuration fitted with solid or cushion rubber tyres.
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_fa_inputs
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Factory testing and release (factory_testing)

Inputs

Product flows

Test electricity (ft_electricity)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Metered charging and test-bench electricity converted from kWh, only for electrically tested configurations.
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_ft_inputs
• Sources:

Test diesel (ft_diesel)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
• Flow property / unit: Mass / kg
• Amount rule: Net diesel consumed in factory acceptance testing, only for diesel configurations.
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_ft_inputs
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Accepted complete industrial truck (ft_reference_product)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: Fork-lift trucks, other works trucks whether or not fitted with lifting or handling equipment, tractors of the type used on railway station platforms 16db3897-10b6-48ba-a91a-d4b4bc52f185
• Flow property / unit: Mass / kg
• Amount rule: Measured net mass of the accepted delivered configuration.
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: One complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_product_output
• Sources:

Waste flows

Elementary flows

Fossil carbon dioxide from diesel testing (ft_co2_fossil)

This card records one atomic exchange crossing the named foreground process boundary; its amount is obtained under the cited collection protocol.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Measured exhaust mass or calculated fossil-carbon balance for diesel consumed during factory testing.
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: Per complete accepted truck
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_ft_emissions
• Sources:

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
al_subdivide	shared lines, utilities and rework	Avoid allocation by submetering, batch tracking, process subdivision, or configuration-specific production records.	ghg-protocol-product-standard-2011
al_physical	unavoidable shared burdens	Allocate by the causal physical relationship, such as machine time, metered energy, coating area, weld length, or tested units; mass alone is permitted only when it represents causality.	ghg-protocol-product-standard-2011
al_fallback	no defensible physical relationship	Use economic or another justified relationship only after documenting why physical allocation is infeasible and test sensitivity.	ghg-protocol-product-standard-2011
al_waste	scrap and wastes	Do not allocate manufacturing burdens to outputs without economic value; disclose treatment and any credit method for sold recyclable material.	ghg-protocol-product-standard-2011

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_mf_inputs	metal_fabrication	material and energy inputs	ERP issue/return, invoices, scales, gas and electricity meters	item id; lot; issued and returned quantity; net mass; kWh; gas volume; meter conditions; accepted units	Reconcile lot and submeter records to released fabricated assemblies	kg; kWh; m3	each lot and monthly	representative 12 consecutive months	all controlled fabrication lines	Sum net consumption and divide by accepted configuration-equivalent trucks	calibrated scale/meter records; ERP reconciliation; scrap balance
cp_sf_inputs	surface_finishing	water, chemical, coating and energy inputs	meters, bath make-up logs, coating issue/return and invoices	water volume; density; chemical concentration; solution mass; coating issue/return; kWh; gas volume; accepted units	Reconcile meters and recipe logs to finished bodies	kg; kWh; m3	each batch and monthly	representative 12 consecutive months	all preparation and coating lines	Sum attributable inputs and divide by accepted trucks	meter calibration; recipe and inventory reconciliation
cp_sf_emissions	surface_finishing	direct combustion emissions	stack measurements or fuel carbon-balance records	fuel volume; carbon content; oxidation factor; measured CO2; accepted units	Use verified stack data or documented carbon balance	kg	each test or monthly calculation	same period as inputs	all on-site finishing combustion	Sum direct fossil CO2 and divide by accepted trucks	analyzer calibration or signed calculation workbook
cp_fa_inputs	final_assembly	assembly inputs	BOM, supplier declarations, issue/return, fill and electricity meters	component identity; count; net mass; chemistry; capacity; fluid mass; kWh; accepted units	Reconcile as-built serial-number BOM and meters	kg; kWh	each truck and monthly	representative 12 consecutive months	all assembly lines	Sum configuration-specific inputs and divide by accepted trucks	as-built BOM; supplier specification; calibrated fill and energy meters
cp_ft_inputs	factory_testing	test energy inputs	test logs, chargers, fuel issue/return and meters	serial number; test cycle; kWh; fuel mass; rework; pass/fail	Link each test and retest to the truck serial number	kg; kWh	each test	same period as production	all test stations	Include all attributable tests and retests per accepted truck	signed acceptance log; calibrated meter; fuel reconciliation
cp_ft_emissions	factory_testing	direct diesel-test emissions	exhaust measurements or fuel carbon-balance records	fuel mass; carbon content; oxidation factor; measured CO2; serial number	Use verified exhaust data or documented carbon balance	kg	each representative test or monthly	same period as testing	all combustion tests	Sum attributable fossil CO2 per accepted truck	analyzer calibration or signed calculation workbook
cp_product_output	factory_testing	reference product	final scale and release record	serial number; model; configuration; net mass; included battery, fluids, attachments and fuel; pass status	Weigh after final acceptance under mu_reference_mass	kg	each truck	same period as inputs	all release points	Report model-specific mean only when individual records are unavailable; retain distribution	scale calibration; signed release and configuration record

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_electricity_mj	all electricity rows	MJ = metered kWh × 3.6	metered kWh	electricity in MJ
calc_water_mass	sf_process_water	water mass = metered volume × measured or documented density at recorded conditions	volume; density; temperature	kg process water
calc_active_naoh	sf_sodium_hydroxide	active NaOH mass = solution mass × measured concentration	solution mass; concentration	kg NaOH
calc_direct_co2	sf_co2_fossil; ft_co2_fossil	Prefer measured CO2; otherwise apply the documented fuel carbon content and oxidation balance without adding upstream emissions	fuel quantity; carbon content; oxidation factor	kg fossil CO2

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	reference product	Preserve serial/model identity and every required qualifier.	release record and as-built configuration
dq_completeness	all foreground processes	Reconcile the complete as-built BOM, energy meters, fuel and chemical inventories, waste manifests, direct emissions, rejects and rework; unlisted actual exchanges remain mandatory.	reconciliation workbook and completeness statement
dq_temporal	foreground data	Use a representative continuous 12-month period or justify a shorter campaign and seasonality treatment.	dated records and production counts
dq_upstream	purchased inputs	Document supplier, geography, technology, recycled content where material, dataset age and any proxy.	supplier evidence and dataset mapping
dq_route	product variants	Keep electric, diesel, LPG, hydrogen, automated, manual and attachment configurations separable; justify aggregation weights.	configuration-specific production records
dq_uncertainty	calculated and allocated values	Retain meter accuracy, conversion factors, missing-data estimates, allocation drivers and sensitivity results.	calculation workbook and calibration records

9. Validation Rules

rule_id	Applies to	Rule	source_ids
vr_reference	reference flow	Confirm one accepted truck, its measured net mass, Tiangong product UUID and all required qualifiers refer to the same delivered configuration.	un-cpc-3-0-structure-2025
vr_boundary	system boundary	Confirm every controlled required process is present and every excluded attributable process is disclosed and justified.	ghg-protocol-product-standard-2011
vr_inventory	foreground inventory	Confirm every reported row is one atomic exchange and BOM, energy, fuel, water, chemical, waste, emission, reject and rework reconciliations are complete.
vr_route	configuration applicability	Reject averaging across incompatible powertrains or test routes unless production weights and all route-specific inclusions are disclosed.	toyota-industries-materials-handling-equipment
vr_allocation	shared burdens	Confirm subdivision was attempted, the selected driver is causal, and fallback allocation is justified and sensitivity-tested.	ghg-protocol-product-standard-2011
vr_uuid	Tiangong references	Confirm every UUID resolves to the stated public identity, flow type, property and unit group; unresolved rows remain explicit.

10. Published Dataset Profile

Field	Value
dataset_role	secondary_dataset; background_dataset
downstream_use	Cradle-to-gate product footprinting and lifecycle models for the declared complete industrial-truck configuration
allowed_use	Product-system models that preserve model, powertrain, capacity, battery, tyre, attachment, geography, period, boundary, allocation and data-quality qualifiers
excluded_use	Whole-life or use-phase comparisons without added use, maintenance and end-of-life models; comparisons across unlike rated functions; an average truck used without representative production weights
required_metadata	PCR id; version; site and geography; period; model/configuration; rated function; net mass; powertrain; battery; tyres; attachments; process coverage; allocation; upstream datasets; unresolved items
required_quality_disclosure	Primary-data share; temporal, geographic and technological representativeness; meter and scale evidence; BOM and mass reconciliation; data gaps; proxies; allocation and uncertainty
update_trigger	Material change in model or rated function, powertrain or battery, delivered configuration, BOM, coating route, plant process, energy supply, allocation, geography, or data older than the declared representativeness period

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-3-0-structure-2025	official_guidance	United Nations Statistics Division, CPC Version 3.0 Structure, 30 June 2025, https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Structure_30Jun2025.csv	CPC 43530 identity and hierarchy
toyota-industries-materials-handling-equipment	official_guidance	Toyota Industries, “Materials Handling Equipment,” https://www.toyota-industries.com/products/industrial_vehicles/	Official product evidence for internal-combustion and electric lift-truck variants, the broad rated-capacity range, and tow tractors
ghg-protocol-product-standard-2011	standard	WRI/WBCSD, Product Life Cycle Accounting and Reporting Standard, https://ghgprotocol.org/sites/default/files/ghgp/standards/Product-Life-Cycle-Accounting-Reporting-Standard-EReader_041613_0.pdf	Attributable-process boundary disclosure and allocation hierarchy