Aviation gasoline

1. Scope and Applicability

This PCR covers the foreground production of finished aviation gasoline formulated for spark-ignition reciprocating aircraft engines and released at a refinery or fuel-terminal plant gate. It applies to leaded or unleaded grades only when the data package declares the applicable aviation-fuel specification, grade, formulation route, lead status, oxygenate status, production location, reporting period, and batch-release basis.

The foreground boundary begins with aviation-gasoline blend components, grade-specific additives, utilities, and other materials received by the blending and release operation. It includes blending, additive injection, batch quality release, on-site storage, and loading at the plant gate. Production of crude oil, refinery blend components, additives, and purchased utilities is represented by linked upstream datasets unless those operations are explicitly brought into the foreground. Aircraft fuelling, downstream distribution beyond the declared plant gate, fuel use and combustion, maintenance, and aircraft operation are outside this PCR.

Jet A, Jet A-1, other kerosene-type turbine fuels, gasoline-type jet fuel, automotive gasoline, and unspecified generic aviation fuel are excluded. The PCR does not assert that one aviation-gasoline grade is interchangeable with another.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.other-transportable-goods-except-metal-products-machinery-and-equipment.coke-oven-products-refined-petroleum-products-nuclear-fuel.aviation-gasoline
classification_refs	CPC 3.0:33312, Aviation gasoline, exact semantic context; mapping acceptance is governed outside this PCR
covered_products	Finished aviation gasoline for spark-ignition reciprocating aircraft engines, including declared leaded and unleaded grades that conform to the stated applicable specification
excluded_products	Aviation turbine fuel, gasoline-type jet fuel, automotive gasoline, unfinished refinery blendstocks sold as such, and generic aviation fuel without a declared fuel specification and grade
representative_product	One kilogram of specification-conforming finished aviation gasoline released at the blending facility gate
production_route	Receipt of specification-relevant blend components and additives; controlled blending and additive injection; batch testing and release; on-site storage and loading
market_state	Finished liquid fuel, production mix at plant gate, with specification, grade, lead status, oxygenate status, and location declared

3. Reference Flow

Field	Value
What	Finished aviation gasoline released for spark-ignition reciprocating aircraft-engine use
How much	1 kg
How well	Conforms to the declared applicable aviation-gasoline specification and grade, with batch-release evidence retained
How long or cycle	One representative reporting period, normalized from released production batches
reference_flow_link	aviation_gasoline_output

Field	Value
Reference amount	1 kg
Reference product flow	Aviation gasoline 60324705-7a75-4213-82e6-30e7b9a24bc9
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	applicable fuel specification and edition; grade; lead status and measured or declared lead content; oxygenate status; formulation route; production location; reporting period; batch-release status; product temperature and measured density when volume records are converted to mass

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 and all mass-normalized inventory rows	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Normalize every reported inventory amount to 1 kg of released aviation gasoline. Preserve source measurements and conversion records.
volume_to_mass	liquid throughput or loss recorded by volume	Measured batch density and measured volume	kg after conversion	Convert volume to mass only with density measured or documented for the relevant product, temperature, and batch. Do not use an undeclared generic density.
batch_mass_balance	blending, storage, and loading	Mass	kg	Reconcile component receipts, internal transfers, released product, rework, off-spec material, wastewater-borne product, spills, and evaporative or fugitive losses over the same reporting period.
quality_identity	reference product	Declared specification-grade properties	specification units	Retain the batch certificate or equivalent release record proving the declared aviation-gasoline specification and grade. Grade-specific limits are taken from the declared specification rather than embedded as a universal PCR value.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Aviation-gasoline blend components, grade-specific additives, utilities, and other materials are received at the foreground blending operation; any on-site production of a component is separately identified
starting_condition_role	Foreground gate-to-gate production starting point for finished aviation-gasoline blending and release
product_classification_scope	Finished aviation gasoline for spark-ignition reciprocating aircraft engines; classification references provide context but do not define canonical PCR identity
recursive_input_rule	Finished aviation gasoline returned for reblending or rework is recorded once as a separate input with its prior dataset reference and mass; do not recursively expand the same PCR inside the same foreground system
upstream_dataset_requirement	Link representative upstream datasets for each purchased blend component, additive, energy carrier, water supply, and inbound transport included by the study goal
disclosure	Declare facility and location, reporting period, specification and grade, lead and oxygenate status, formulation route, whether blend components are produced on site, storage and loading configuration, vapor-control status, and all boundary exclusions

rule_id	applies_to	rule	source_ids
boundary_required_operations	foreground production	Include component receipt, blending, additive injection, batch quality release, on-site storage, and loading through the declared plant gate, together with associated utilities, wastes, spills, and direct emissions.	faa-ac-20-24d; epa-ap42-5-1; epa-ap42-5-2
boundary_upstream_links	purchased inputs	Represent blend components, additives, purchased utilities, water, and included inbound transport with linked upstream datasets; do not treat their upstream burdens as zero.	eu-pef-2021-2279
boundary_direct_emissions	blending, storage, and loading	Collect or calculate site-specific direct releases, including equipment leaks, tank losses, loading losses, spills, and wastewater transfers. Use facility conditions and control performance when applying an engineering method.	epa-ap42-5-1; epa-ap42-5-2
boundary_excluded_use	downstream system	Exclude downstream distribution beyond the declared gate, aircraft fuelling, fuel combustion, aircraft operation, and maintenance unless a broader study adds them as separately reported processes.	eu-pef-2021-2279

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
blending_release	Aviation-gasoline blending, additive injection, testing, and release; Tiangong process 64853250-d002-406b-9226-77f1e17fd630	required	Always	Foreground production and batch release	1 kg released aviation gasoline
storage_loading	Released-product storage and plant-gate loading	required	Always	Foreground storage and dispatch	1 kg aviation gasoline delivered at the declared plant gate

Process: Aviation-gasoline blending, additive injection, testing, and release (blending_release)

Inputs

Product flows

Aviation-gasoline base blend components (base_blend_components)

Record each blend component separately where records permit, including the component identity, supplier or on-site source, mass, batch, and upstream dataset. Aggregation into one blending-pool input is allowed only with the component composition disclosed.

• Selected flow: Site-selected product flows for the actual aviation-gasoline blend components
• Flow property / unit: Mass / kg
• Amount rule: measured component mass charged to released batches
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg released aviation gasoline
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_components
• Sources: faa-ac-20-24d; astm-d910
• Range: Provisional blend-component mass screening range
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0.8
  • Upper: 1.2
  • Unit: kg/kg released aviation gasoline
  • Basis: total blend-component mass charged per kg released product before separate accounting of rework and losses
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Grade-specific additive package (grade_specific_additives)

Record each additive actually used and preserve its function, grade applicability, lead or metal content where relevant, supplier, batch, and mass. Do not assume that all aviation-gasoline grades use the same additive package.

• Selected flow: Site-selected product flows for the actual grade-specific additives
• Flow property / unit: Mass / kg
• Amount rule: measured additive mass injected into released batches
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg released aviation gasoline
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_batch_components
• Sources: faa-ac-20-24d; astm-d910; faa-pafi-fuel-best-practices
• Range: Provisional additive-package screening range
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 0.1
  • Unit: kg/kg released aviation gasoline
  • Basis: broad initial screen for all separately metered grade-specific additives
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Purchased electricity (blending_electricity)

Record metered electricity used for component receipt, blending, pumping, additive injection, testing, and release. Apply the electricity mix appropriate to the facility and reporting period.

• Selected flow: Site-selected electricity supply product flow
• Flow property / unit: Energy / kWh
• Amount rule: metered or invoice-reconciled electricity attributable to the blending and release process
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released aviation gasoline
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_blending_utilities
• Sources: eu-pef-2021-2279
• Range: Provisional electricity screening range
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 2
  • Unit: kWh/kg released aviation gasoline
  • Basis: broad first-pass screen for blending, pumping, testing, and release electricity
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Process and cleaning water (blending_water)

Record water that crosses the process boundary for equipment cleaning, laboratory work, spill response, or other production uses; exclude unrelated site water by subdivision.

• Selected flow: Site-selected water supply product flow
• Flow property / unit: Mass / kg
• Amount rule: measured or allocated water use attributable to released aviation-gasoline batches
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released aviation gasoline
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_blending_utilities
• Sources: eu-pef-2021-2279
• Range: Provisional water-use screening range
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 5
  • Unit: kg/kg released aviation gasoline
  • Basis: broad first-pass screen for process, laboratory, and cleaning water
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Elementary flows

Outputs

Product flows

Released aviation gasoline (aviation_gasoline_output)

The reference product is released only after the declared batch specification and grade have been verified. The normalized amount is derived from released batch mass, not from nominal vessel capacity.

• Selected flow: Aviation gasoline 60324705-7a75-4213-82e6-30e7b9a24bc9
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: released aviation-gasoline mass divided by the released aviation-gasoline mass for the reporting period
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1 kg released aviation gasoline
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_finished_product_release
• Sources: faa-ac-20-24d; astm-d910

Waste flows

Off-specification material and unrecovered spill (off_spec_and_spill_waste)

Record off-specification material, contaminated product, laboratory discard, and unrecovered spill as separate waste flows when their treatment routes differ. Material returned to the blend is recorded as rework rather than waste.

• Selected flow: Site-selected waste flows matching the actual material and treatment route
• Flow property / unit: Mass / kg
• Amount rule: measured mass sent to each waste treatment route
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released aviation gasoline
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste_and_rework
• Sources: eu-pef-2021-2279
• Range: Provisional off-specification and spill-waste screening range
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 0.2
  • Unit: kg/kg released aviation gasoline
  • Basis: broad first-pass screen for material leaving the foreground system as waste
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Process wastewater (blending_wastewater)

Record wastewater crossing the foreground boundary, including measured volume or mass and treatment destination. Account separately for recovered hydrocarbon returned to production.

• Selected flow: Site-selected wastewater flow matching the actual treatment route
• Flow property / unit: Mass / kg
• Amount rule: measured wastewater sent to treatment
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released aviation gasoline
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_waste_and_rework
• Sources: epa-ap42-5-1
• Range: Provisional wastewater screening range
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 5
  • Unit: kg/kg released aviation gasoline
  • Basis: broad first-pass screen for wastewater sent to treatment
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Elementary flows

Direct releases to air from blending equipment (blending_air_emissions)

Record measured or engineering-calculated releases from vents, equipment leaks, displaced vapors, and spills. Report named elementary substances where the monitoring or calculation method supports disaggregation; do not report one generic VOC total as if it were a complete speciated inventory.

• Selected flow: Site-selected elementary flows for the substances released to air
• Flow property / unit: Mass / kg
• Amount rule: monitored release or site-specific engineering calculation using actual throughput, material properties, equipment, controls, and operating conditions
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released aviation gasoline
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_direct_air_emissions
• Sources: epa-ap42-5-1; epa-ap42-5-2
• Range: Provisional direct-air-release screening range
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 0.1
  • Unit: kg/kg released aviation gasoline
  • Basis: broad first-pass screen for total mass of direct air releases before substance-level review
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Process: Released-product storage and plant-gate loading (storage_loading)

Inputs

Product flows

Released aviation gasoline transferred into storage (released_product_to_storage)

Record the internal transfer of specification-released aviation gasoline into the storage and loading stage. This is an internal foreground link and is not recursively expanded as another product system.

• Selected flow: Aviation gasoline 60324705-7a75-4213-82e6-30e7b9a24bc9
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: measured mass transferred into released-product storage
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg aviation gasoline loaded at the plant gate
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_storage_loading_throughput
• Sources: epa-ap42-5-2
• Range: Provisional storage-input mass-balance screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0.9
  • Upper: 1.1
  • Unit: kg/kg product loaded at the plant gate
  • Basis: storage input mass reconciled with loaded product, inventory change, rework, spill, and evaporation
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Storage and loading electricity (storage_loading_electricity)

Record metered electricity for tank circulation, pumping, instrumentation, vapor control, and loading attributable to released aviation gasoline.

• Selected flow: Site-selected electricity supply product flow
• Flow property / unit: Energy / kWh
• Amount rule: metered or invoice-reconciled electricity attributable to storage and loading
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg aviation gasoline loaded at the plant gate
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_storage_loading_utilities
• Sources: eu-pef-2021-2279
• Range: Provisional storage and loading electricity screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 1
  • Unit: kWh/kg product loaded at the plant gate
  • Basis: broad first-pass screen for storage circulation, vapor control, and loading electricity
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Elementary flows

Outputs

Product flows

Aviation gasoline delivered at the plant gate (plant_gate_aviation_gasoline)

Record the measured mass loaded into the custody-transfer container or conveyance at the declared plant gate. The product retains the same declared specification, grade, and batch-release identity.

• Selected flow: Aviation gasoline 60324705-7a75-4213-82e6-30e7b9a24bc9
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: loaded custody-transfer mass normalized to 1 kg at the plant gate
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: 1 kg aviation gasoline loaded at the plant gate
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_storage_loading_throughput
• Sources: faa-ac-20-24d; astm-d910

Waste flows

Storage slop and loading spill waste (storage_loading_waste)

Record slop, contaminated drainage, and unrecovered loading spill sent to treatment. Separately record material recovered to rework.

• Selected flow: Site-selected waste flows matching actual material and treatment route
• Flow property / unit: Mass / kg
• Amount rule: measured mass sent to treatment from storage and loading
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg aviation gasoline loaded at the plant gate
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_storage_loading_losses
• Sources: epa-ap42-5-2
• Range: Provisional storage and loading waste screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 0.1
  • Unit: kg/kg product loaded at the plant gate
  • Basis: broad first-pass screen for material leaving storage and loading as waste
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Elementary flows

Storage and loading releases to air (storage_loading_air_emissions)

Record breathing, working, standing, loading, and fugitive losses using monitoring or a site-specific engineering method. Preserve throughput, temperature, vapor pressure, loading method, vapor-control collection efficiency, control efficiency, and downtime inputs when they are used.

• Selected flow: Site-selected elementary flows for the substances released to air
• Flow property / unit: Mass / kg
• Amount rule: monitored release or site-specific engineering calculation for storage and loading
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg aviation gasoline loaded at the plant gate
• Basis kind: Process output (process_output)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_storage_loading_losses
• Sources: epa-ap42-5-2
• Range: Provisional storage and loading air-release screen
  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 0.1
  • Unit: kg/kg product loaded at the plant gate
  • Basis: broad first-pass screen for total direct air releases before substance-level review
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

7. Allocation and Co-product Handling

rule_id	applies_to	rule	source_ids
allocation_subdivision_first	shared refinery or terminal operations	Avoid allocation by separately metering or otherwise subdividing aviation-gasoline blending, testing, storage, loading, and emission-control activities whenever technically possible.	eu-pef-2021-2279
allocation_physical_driver	non-subdividable shared utilities and operations	When subdivision is not possible, allocate using a documented causal physical driver such as metered energy, equipment operating time, batch mass throughput, tank occupancy, or loading throughput. Apply the same driver consistently to inputs and direct emissions.	eu-pef-2021-2279
allocation_other_relationship	remaining multifunctional burdens	Use another relationship, including economic allocation, only when subdivision and a relevant physical relationship are not feasible. Disclose values, period, formula, affected flows, and a sensitivity result.	eu-pef-2021-2279
allocation_rework_and_waste	rework, off-spec product, recovered vapor, and waste	Return-to-blend material remains within the mass balance without an avoided-product credit. Assign waste treatment according to the declared treatment route and do not credit recovered material unless a separately justified downstream substitution model is included.	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_components	blending_release	base_blend_components; grade_specific_additives	batch tickets, tank gauges, mass meters, formulation sheets, supplier records	batch_id; component_id; supplier_or_on_site_source; mass; unit; additive_function; specification; grade; lead_content; oxygenate_status; timestamp	reconcile charged masses to formulation and batch records	kg	each batch	complete reporting period	all blending trains in scope	sum accepted charges and normalize by released product mass	calibrated meter or gauge records; signed formulation; supplier lot traceability
cp_blending_utilities	blending_release	blending_electricity; blending_water	submeter, invoice, laboratory and cleaning logs	meter_id; opening; closing; unit; timestamp; process_scope; allocation_driver	direct submetering preferred; otherwise documented subdivision or causal allocation	kWh; kg	continuous or each billing period	complete reporting period	all blending, testing, and cleaning operations in scope	subtract unrelated loads, aggregate, then normalize by released product mass	meter calibration; invoice reconciliation; allocation worksheet
cp_finished_product_release	blending_release	aviation_gasoline_output	batch release certificate and custody or tank mass records	batch_id; released_mass; unit; specification; edition; grade; lead_status; lead_content; oxygenate_status; test_results; release_decision; timestamp	verify specification-grade identity and sum only released product	kg	each released batch	complete reporting period	all released batches in scope	sum released mass; retain rejected and reworked batches separately	signed certificate; laboratory accreditation or QA record; calibrated mass or density-volume measurement
cp_waste_and_rework	blending_release	off_spec_and_spill_waste; blending_wastewater	waste manifests, spill logs, wastewater meters, rework tickets	event_or_batch_id; material_identity; mass_or_volume; density; destination; treatment_route; rework_status; timestamp	measure each exit and reconcile with batch mass balance	kg	each event and monthly reconciliation	complete reporting period	all blending-related waste and wastewater	aggregate by material and route; convert volume with measured density	manifest or meter; incident record; treatment receipt; mass-balance reconciliation
cp_direct_air_emissions	blending_release	blending_air_emissions	monitoring results, leak surveys, throughput and engineering-calculation inputs	source_id; substance; measured_concentration_or_factor; throughput; vapor_pressure; temperature; control_status; collection_efficiency; control_efficiency; downtime; result_mass; method	direct monitoring preferred; otherwise site-specific documented engineering calculation	kg	monitoring schedule plus each material event	complete reporting period	all vents, leaks, displaced vapors, and spills in scope	aggregate by named substance and normalize by released product mass	method reference; instrument QA; input records; calculation workbook
cp_storage_loading_throughput	storage_loading	released_product_to_storage; plant_gate_aviation_gasoline	tank inventory, transfer meter, custody-transfer and batch records	tank_id; batch_id; opening_mass; receipts; loaded_mass; closing_mass; density; temperature; timestamp	reconcile storage inventory change and custody transfers	kg	each transfer with monthly reconciliation	complete reporting period	all released-product tanks and loading racks in scope	mass balance by tank and batch; normalize to loaded plant-gate mass	calibrated transfer meter; gauge record; custody document; reconciliation sign-off
cp_storage_loading_utilities	storage_loading	storage_loading_electricity	submeter and invoice records	meter_id; opening; closing; unit; timestamp; equipment_scope; allocation_driver	direct submetering preferred; otherwise documented causal allocation	kWh	continuous or each billing period	complete reporting period	tanks, pumps, vapor control, and loading equipment in scope	aggregate attributable use and normalize by loaded mass	meter calibration; invoice reconciliation; allocation worksheet
cp_storage_loading_losses	storage_loading	storage_loading_waste; storage_loading_air_emissions	tank and loading logs, spill records, vapor-control logs, monitoring and calculation inputs	tank_or_rack_id; substance_or_material; throughput; temperature; vapor_pressure; loading_method; control_status; collection_efficiency; control_efficiency; downtime; waste_mass; emission_mass; timestamp	monitoring or site-specific storage and loading calculation plus material reconciliation	kg	each loading event where available and monthly reconciliation	complete reporting period	all tanks and loading racks in scope	aggregate by substance or waste route and normalize by loaded mass	control-device record; inspection log; incident record; method and calculation workbook

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_reference_normalization	every inventory row	normalized amount = reporting-period amount / reporting-period plant-gate loaded aviation-gasoline mass	collected flow amount; loaded reference-product mass	amount per 1 kg reference product	eu-pef-2021-2279
calc_volume_to_mass	liquid records measured by volume	mass = measured volume × density measured or documented for the relevant batch and temperature	volume; density; temperature; batch identity	kg	astm-d910
calc_batch_mass_balance	blending and storage stages	opening inventory + receipts + transfers in = closing inventory + released or loaded product + transfers out + rework + waste + wastewater-borne product + direct losses; investigate and disclose residual imbalance	inventory, throughput, rework, waste, wastewater, spill, and emission records	reconciled mass balance and residual	eu-pef-2021-2279
calc_direct_air_release	blending, storage, and loading emissions	use measured mass where available; otherwise apply a documented engineering method with the actual liquid properties, throughput, equipment, loading method, control collection efficiency, control efficiency, and downtime	monitoring or facility-specific method inputs	kg of each named substance released	epa-ap42-5-1; epa-ap42-5-2
calc_shared_operation_allocation	shared utilities and direct emissions	subdivide first; if impossible, allocated amount = shared amount × documented causal physical driver share; use another relationship only with justification and sensitivity	shared amount; driver totals; product driver; allocation justification	amount assigned to aviation gasoline	eu-pef-2021-2279

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_product_identity	reference product	Every released batch must retain its applicable specification and edition, grade, lead status, oxygenate status, test results, and release decision.	batch certificate and laboratory QA records; faa-ac-20-24d; astm-d910
dq_primary_data	foreground activity data	Use facility- and reporting-period-specific batch, meter, inventory, waste, and emission records. Identify any secondary or modelled substitution and its affected rows.	source records and substitution register; eu-pef-2021-2279
dq_completeness	foreground inventory	Cover all environmentally relevant material, energy, waste, and elementary flows within the declared boundary, including fugitive, storage, loading, spill, and wastewater routes.	completeness reconciliation and mass balance; eu-pef-2021-2279; epa-ap42-5-1; epa-ap42-5-2
dq_representativeness	dataset profile	Report technological, geographical, and time representativeness and precision for the foreground data; identify differences between the dataset and the declared product route.	data-quality assessment; eu-pef-2021-2279
dq_traceability	calculations and allocation	Retain raw fields, units, conversions, calculation versions, allocation drivers, control performance, and reviewer sign-off sufficient to reproduce every normalized amount.	calculation workbook, meter records, method references, and review record

9. Validation Rules

rule_id	applies_to	rule	source_ids
validation_identity	reference flow and dataset metadata	Fail if the Tiangong reference product flow UUID, Mass flow-property UUID, Units-of-mass UUID, specification, grade, lead status, oxygenate status, production location, or reporting period is missing or inconsistent.	faa-ac-20-24d; astm-d910
validation_reference_amount	quantitative reference	Confirm that the plant-gate product output is exactly 1 kg after normalization and that all volume-to-mass conversions retain batch density and temperature evidence.	astm-d910
validation_process_coverage	process inventory	Confirm that blending and release plus storage and loading are represented, or explicitly document why a separately linked process replaces one of them without creating a gap.	epa-ap42-5-1; epa-ap42-5-2
validation_mass_balance	blending and storage	Reconcile component, product, inventory-change, rework, waste, wastewater, spill, and direct-loss masses over one consistent period; report the residual and investigation rather than forcing closure.	eu-pef-2021-2279
validation_direct_emissions	air, water, and waste releases	Confirm that site-specific releases and control performance are collected or calculated and that a generic factor is not used without the required facility inputs and applicability statement.	epa-ap42-5-1; epa-ap42-5-2
validation_allocation	shared operations	Confirm subdivision was attempted first and every remaining allocation has a stated driver, formula, period, affected flows, and sensitivity where another relationship is used.	eu-pef-2021-2279
validation_reasoned_estimates	provisional ranges	Treat every reasoned_estimate range as a screening flag only. It must not replace foreground values, define a conformance limit, or support a public comparative assertion.

10. Published Dataset Profile

Field	Value
dataset_role	Foreground data package for finished aviation-gasoline production, publishable as a secondary_dataset or background_dataset after review
downstream_use	Process and lifecyclemodel construction for specification-declared aviation gasoline at a refinery or terminal plant gate
allowed_use	Attributional modelling of the declared production route, grade, facility geography, technology, and reporting period; upstream linkage to actual blend components and utilities
excluded_use	Aircraft combustion or operation; downstream distribution beyond the declared gate; substitution for turbine fuel, automotive gasoline, another aviation-gasoline grade, or an unspecified geography or technology without review; public comparative assertions based on provisional ranges
required_metadata	canonical PCR id; reference flow UUID; specification and edition; grade; lead and oxygenate status; formulation route; facility and geography; reporting period; batch coverage; component origin; storage and loading configuration; vapor-control status; allocation method; upstream dataset references
required_quality_disclosure	primary-data share; technological, geographical, and time representativeness; precision; mass-balance residual; missing or modelled flows; provisional ranges used only for screening; source and control-method limitations
update_trigger	Change in product specification or grade, formulation or additive package, lead or oxygenate status, component origin, facility technology, storage or vapor control, allocation method, reporting period representativeness, or any material data gap

11. Data Sources

Source id	Type	Reference	Used for
faa-ac-20-24d	official_guidance	U.S. Federal Aviation Administration, AC 20-24D, Approval of Propulsion Fuels, Additives, and Lubricating Oils, https://www.faa.gov/documentLibrary/media/Advisory_Circular/AC_20-24D.pdf, retrieved 2026-08-09	Aviation-gasoline scope, reciprocating spark-ignition use, D910 primacy, grade and fuel-specification disclosure
astm-d910	standard	ASTM International, D910, Standard Specification for Leaded Aviation Gasolines, https://store.astm.org/standards/d910, retrieved 2026-08-09	Declared grade identity and grade-specific physical, chemical, performance, and test requirements only when D910 is the declared applicable specification
faa-pafi-fuel-best-practices	official_guidance	U.S. Federal Aviation Administration, PAFI Fuel Development and Testing Best Practices, https://www.faa.gov/sites/faa.gov/files/PAFI_Fuel_Development_Best%20Practices.pdf, retrieved 2026-08-09	Grade-specific formulation and batch-property evidence; values apply only when the corresponding declared grade and test context match
epa-ap42-5-1	official_guidance	U.S. Environmental Protection Agency, AP-42 Section 5.1 Petroleum Refining, https://gaftp.epa.gov/ap42/ch05/s01/final/c05s01_jan1995.pdf, retrieved 2026-08-09	Refinery process boundary, equipment leaks, spills, drains, wastewater-related releases, monitoring and control context
epa-ap42-5-2	official_guidance	U.S. Environmental Protection Agency, AP-42 Section 5.2 Transportation and Marketing of Petroleum Liquids, https://www.epa.gov/sites/default/files/2020-09/documents/5.2_transportation_and_marketing_of_petroleum_liquids.pdf, retrieved 2026-08-09	Storage and loading loss mechanisms, facility-specific calculation inputs, vapor collection and control records
eu-pef-2021-2279	official_guidance	European Commission, Recommendation (EU) 2021/2279, Product Environmental Footprint Method, https://eur-lex.europa.eu/eli/reco/2021/2279/2021-12-30, retrieved 2026-08-09	Functional-unit structure, completeness, primary data, allocation hierarchy, representativeness, precision, and transparent data-gap disclosure