Photographic plates and film and instant print film, sensitized, unexposed

1. Scope and Applicability

This PCR applies to cradle-to-gate production of saleable, sensitized but unexposed photographic plates, flat film, roll film, and instant-print film units. It covers products for still, cine, X-ray, graphic-arts, micrographic, scientific, and comparable photographic uses when the delivered product retains a photosensitive layer and has not been imagewise exposed.

The core process model covers silver-halide products made by emulsion preparation, support preparation, coating and drying, converting, instant-film assembly when applicable, and light-tight packaging. A producer using another photosensitive chemistry shall report every formulation-specific material and emission as an additional atomic exchange and identify the chemistry in the required qualifiers.

Exclusions are exposed or developed photographic material, separately sold developer or fixer, cameras and processing equipment, downstream exposure and development, use, and end-of-life. Sensitized photographic paper is outside this semantic boundary unless it is an inseparable image-receiving or structural component of a delivered instant-film unit.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.medical-appliances-precision-and-optical-instruments-watches-and-clocks.photographic-plates-and-film-and-instant-print-film-sensitized-unexposed
classification_refs	CPC 3.0: 48341, exact classification context
covered_products	Sensitized unexposed photographic plates; flat photographic film; photographic film in rolls; conventional and instant-print film units
excluded_products	Exposed or developed film and plates; separately sold photographic chemicals; sensitized paper not integral to an instant-film unit; cameras and processing equipment
representative_product	Saleable unexposed silver-halide photographic film supplied in a declared format and light-tight market pack
production_route	Silver-halide emulsion preparation, support treatment, multilayer coating and drying, converting, conditional instant-film assembly, and light-tight packaging
market_state	Sensitized, unexposed, quality-conforming and packaged for shipment; format, support, imaging chemistry and intended use declared

3. Reference Flow

Field	Value
What	Provide an unexposed photosensitive medium capable of recording a latent photographic image under the declared exposure and processing system
How much	1 kg net mass of saleable sensitized product at the factory gate
How well	Meets the producer's declared format, dimensions, sensitivity/speed, spectral response, image type, shelf-life and defect acceptance specification
How long or cycle	One delivered product lot at release; no use-stage service life is assigned
reference_flow_link	The reference flow is the conforming packaged product output pack_reference_product, normalized to 1 kg net product; secondary and tertiary packaging are excluded from reference mass

Field	Value
Reference amount	1 kg
Reference product flow	Unexposed photosensitive substrate rolls and sheets e568740b-8b0c-4359-8268-366cb8b6d2a6
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	product form (plate, flat film, roll film, or instant film); support material; silver-halide or other imaging chemistry; monochrome or colour; intended application; dimensions or roll width and length; perforation and spool/cassette state; photosensitivity or speed designation; spectral response; coating-side configuration; instant-film type and unit count when applicable; net product mass convention; primary light-tight packaging included in product; production geography; reference year; shelf-life and storage condition

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 foreground exchanges to 1 kg net saleable product. Include inseparable instant-film sheets, processing pod, frame and cassette in net product mass; exclude secondary and tertiary distribution packaging.
area_or_length_to_mass	plate, film-base, coating and converting records	Mass	kg	When operating records use m2, m or item count, convert with lot-specific measured basis mass or with measured thickness and density. Retain the source measurement, conversion formula and lot identifier; a generic conversion factor is not allowed.
electricity_energy	purchased electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve metered energy. Convert kWh to MJ by multiplying by 3.6 and disclose grid geography, voltage and whether transformer or on-site distribution losses are included.
gas_volume	gaseous natural gas	Volume 93a60a56-a3c8-22da-a746-0800200c9a66	m3	Report gas volume at the supplier or meter reference temperature and pressure, and disclose those reference conditions; do not mix standard and operating volumes.
silver_mass_balance	silver-bearing inputs, product, wastes and recovery outputs	Mass	kg	Retain a campaign-level silver mass balance based on measured silver-bearing feed, coated product, recovered material, liquid waste and solid waste. Do not infer silver content from total wastewater mass alone.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Purchased photosensitive chemicals, support materials, utilities, packaging components and any externally produced intermediate arrive at the reporting-site gate with upstream datasets attached
starting_condition_role	Cradle-to-gate foreground manufacturing start; upstream production of purchased inputs remains represented by linked background datasets
product_classification_scope	Sensitized, unexposed photographic plates, film and instant-print film within the reviewed semantic boundary; classification codes are mapping context only
recursive_input_rule	A purchased sensitized master roll or other input already within this product category is recorded once as an upstream same-category product input. The reporting unit then models only subsequent converting or assembly and discloses the partial manufacturing boundary; it must not recreate emulsion and coating burdens.
upstream_dataset_requirement	Every purchased chemical, support, energy carrier, packaging component and same-category intermediate requires a geographically and technologically representative upstream dataset or an explicit data gap
disclosure	Declare included sites and processes, support and chemistry routes, instant-film construction, internal transfers, recovered silver, wastewater treatment boundary, solvent recovery, energy supply, packaging convention, cut-offs and exclusions

rule_id	applies_to	rule	source_ids
boundary_cradle_to_gate	all datasets	Include emulsion preparation, support preparation or receipt, coating and drying, converting, conditional instant-film assembly, quality losses, light-tight packaging, on-site waste handling and direct emissions through the factory gate.	us-patent-4564591; us-patent-6814329; us-patent-5356762
boundary_route_conditionals	route-specific processes	Include each support or instant-film component row only when that material physically enters the declared product route; record demonstrably absent atomic exchanges as not applicable rather than zero measured use.	us-patent-4564591; us-patent-5356762
boundary_recursive_input	purchased sensitized master material	Apply the recursive input rule and disclose the upstream-to-foreground hand-off to prevent duplicated coating burdens.
boundary_additional_formulation_flows	product-specific formulations	Add each non-listed sensitizer, colour coupler, hardener, surfactant, stabilizer, subbing chemical, solvent, cleaning chemical and direct emission as its own atomic exchange when used; never aggregate them as additives or chemicals.	us-patent-4564591; us-patent-3849166
boundary_exclusions	downstream life cycle	Exclude imagewise exposure, photographic development, customer use and end-of-life from the foreground production inventory; model them only in a separately declared downstream system.	un-cpc-3-0-structure-2025

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
emulsion_preparation	Silver-halide emulsion preparation	required	All silver-halide routes; non-silver routes replace it with a fully disclosed chemistry-specific preparation process	Foreground photosensitive-emulsion production	Inputs and utilities normalized to emulsion used for 1 kg reference product
support_coating_drying	Support treatment, coating and drying	required	All products; support and solvent cards are conditional by actual formulation and support	Foreground sensitization and coated-master production	Inputs, wastes and emissions normalized to coated material used for 1 kg reference product
converting_packaging	Converting, instant-film assembly and light-tight packaging	required	All products; instant-film component cards apply only to instant-film units	Foreground slitting, perforating, loading, assembly, inspection and packaging	1 kg net conforming saleable reference product

Process: Silver-halide emulsion preparation (emulsion_preparation)

Inputs

Product flows

Silver nitrate reagent (em_silver_nitrate)

Silver nitrate entering precipitation of the photosensitive silver-halide phase is recorded as a separate input.

• Selected flow: Silver nitrate
• Flow property / unit: Mass / kg
• Amount rule: Measured net silver nitrate issued to conforming and rejected emulsion batches
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emulsion_materials
• Sources: us-patent-4564591

Potassium bromide reagent (em_potassium_bromide)

Potassium bromide used as the bromide source is recorded separately; another halide salt is added as its own row when used.

• Selected flow: Potassium bromide
• Flow property / unit: Mass / kg
• Amount rule: Measured net potassium bromide issued to emulsion batches
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emulsion_materials
• Sources: us-patent-4564591

Photographic gelatin binder (em_gelatin)

Gelatin incorporated as the hydrophilic colloid binder is recorded by supplied dry-equivalent mass.

• Selected flow: Photographic gelatin
• Flow property / unit: Mass / kg
• Amount rule: Measured gelatin dry-equivalent mass issued to emulsion batches
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emulsion_materials
• Sources: us-patent-4564591

Process water for emulsion preparation (em_process_water)

Water crossing the process boundary for solution preparation, controlled washing and vessel cleaning is recorded by mass.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: Metered or batch-record water supplied to emulsion preparation, excluding recirculated water until make-up crosses the boundary
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emulsion_utilities
• Sources:

Electricity for emulsion preparation (em_electricity)

Purchased electrical energy used by reactors, mixing, temperature control, filtration and local ventilation is recorded separately.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered electricity or allocated meter total for emulsion preparation
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_emulsion_utilities
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Elementary flows

Process: Support treatment, coating and drying (support_coating_drying)

Inputs

Product flows

PET photographic film base (coat_pet_film_base)

Biaxially oriented PET film base is recorded when the declared product uses a polyester support.

• Selected flow: Polyethylene terephthalate photographic film base
• Flow property / unit: Mass / kg
• Amount rule: Measured PET film-base mass entering support treatment and coating
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_materials
• Sources: us-patent-3849166; us-patent-4564591

Cellulose triacetate photographic film base (coat_cellulose_triacetate_base)

Cellulose triacetate film base is recorded only for products using that flexible support.

• Selected flow: Cellulose triacetate photographic film base
• Flow property / unit: Mass / kg
• Amount rule: Measured cellulose triacetate film-base mass entering coating
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_materials
• Sources: us-patent-4564591

Glass support plate (coat_glass_plate)

Unworked sheet glass is recorded when a rigid photographic plate is produced.

• Selected flow: plate glass 491a7940-d102-4981-a2b8-81bf183987df
• Flow property / unit: Mass / kg
• Amount rule: Measured mass of accepted glass plates entering cleaning and coating
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_materials
• Sources: us-patent-4564591

Methanol for subbing or coating formulation (coat_methanol)

Methanol is recorded only when purchased methanol enters the declared subbing or coating formulation.

• Selected flow: Methanol (market average) adbc8430-7937-4ade-b7a5-cb1797dda661
• Flow property / unit: Mass / kg
• Amount rule: Measured gross methanol input less documented recovered methanol returned to the same process
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_materials
• Sources: us-patent-3849166; us-patent-4564591

Acetone for subbing or coating formulation (coat_acetone)

Acetone is recorded only when purchased acetone enters the declared subbing or coating formulation.

• Selected flow: Acetone d5d65ffc-92f2-4d88-b6e7-e050445978f5
• Flow property / unit: Mass / kg
• Amount rule: Measured gross acetone input less documented recovered acetone returned to the same process
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_materials
• Sources: us-patent-3849166; us-patent-4564591

Process water for coating (coat_process_water)

Water supplied for aqueous coating formulations, line cleaning and controlled humidification is recorded by mass.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: Metered make-up and cleaning water entering support treatment, coating and drying
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_utilities
• Sources: us-patent-3849166

Electricity for coating and drying (coat_electricity)

Electrical energy for web handling, coating, refrigeration, clean-room air handling, drying auxiliaries and controls is recorded separately.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered electricity or allocated meter total for support treatment, coating and drying
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_utilities
• Sources: us-patent-3849166; us-patent-4564591

Natural gas for direct thermal drying (coat_natural_gas)

Natural gas is recorded when combusted on site for drying or thermal air conditioning.

• Selected flow: natural gas in the gaseous state 4f19ca0e-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Volume / m3
• Amount rule: Metered gaseous natural gas supplied to coating-line dryers and thermal air systems
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_utilities
• Sources:

Waste flows

Elementary flows

Outputs

Product flows

Waste flows

Silver-bearing coating wastewater (coat_silver_wastewater)

Wastewater containing silver-bearing emulsion or coating residues is recorded before external treatment or at the declared on-site treatment hand-off.

• Selected flow: Silver-bearing photographic coating wastewater
• Flow property / unit: Mass / kg
• Amount rule: Measured wastewater mass with silver concentration and treatment destination retained as quality evidence
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_coating_wastewater
• Sources: us-epa-silver-risk-1980

Elementary flows

Fossil carbon dioxide from on-site natural-gas combustion (coat_fossil_co2)

Direct fossil carbon dioxide from declared on-site natural-gas combustion is reported; upstream electricity emissions are excluded from this row.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Calculate from metered natural gas, supplier carbon content and measured or documented oxidation fraction using calc_combustion_co2, or use a verified stack mass balance
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_combustion_emissions
• Sources:

Process: Converting, instant-film assembly and light-tight packaging (converting_packaging)

Inputs

Product flows

Instant-film image-receiving sheet (pack_image_receiving_sheet)

The image-receiving sheet is recorded only for instant-film designs that physically incorporate a separate receiving element.

• Selected flow: Instant-film image-receiving sheet
• Flow property / unit: Mass / kg
• Amount rule: Measured image-receiving-sheet mass issued to instant-film assembly
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_materials
• Sources: us-patent-5356762

Instant-film processing composition (pack_instant_processing_composition)

The sealed processing composition is recorded only for self-developing instant-film units that contain a rupturable pod.

• Selected flow: Instant-film processing composition
• Flow property / unit: Mass / kg
• Amount rule: Measured filled processing-composition mass accepted into film units, including documented fill loss
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_materials
• Sources: us-patent-5356762

Plastic instant-film cassette (pack_plastic_cassette)

The moulded light-tight cassette is recorded when it remains part of the delivered instant-film pack.

• Selected flow: Plastic instant-film cassette
• Flow property / unit: Mass / kg
• Amount rule: Measured cassette mass assembled into released instant-film packs
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_materials
• Sources: us-patent-5356762

Paper box for secondary packaging (pack_paper_box)

The paper or paperboard sales carton crossing the factory gate is recorded separately from the net reference-product mass.

• Selected flow: Paper box 12d5d744-7725-4dbc-b102-43c80547f777
• Flow property / unit: Mass / kg
• Amount rule: Measured paper-box mass consumed for shipped saleable product
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging_materials
• Sources: us-patent-6814329

Electricity for converting and packaging (pack_electricity)

Electricity for slitting, perforating, loading, assembly, inspection and packaging is recorded separately.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value / MJ
• Amount rule: Submetered electricity or allocated meter total for converting and packaging
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_converting_utilities
• Sources: us-patent-6814329

Waste flows

Elementary flows

Outputs

Product flows

Conforming unexposed photosensitive product (pack_reference_product)

Only released, sensitized and unexposed product meeting the declared specification is counted as reference output.

• Selected flow: Unexposed photosensitive substrate rolls and sheets e568740b-8b0c-4359-8268-366cb8b6d2a6
• Flow property / unit: Mass / kg
• Amount rule: Net mass of conforming product released from the lot, normalized to exactly 1 kg reference flow
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_product_output
• Sources: un-cpc-3-0-structure-2025

Waste flows

Sensitized photographic-film edge trim (pack_film_trim_waste)

Coated edge trim and perforation scrap removed during converting are recorded as a distinct silver-bearing solid waste.

• Selected flow: Sensitized photographic-film edge trim waste
• Flow property / unit: Mass / kg
• Amount rule: Measured coated trim and perforation scrap sent to recovery, treatment or disposal
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_solid_wastes
• Sources: us-patent-6814329; us-epa-silver-risk-1980

Off-spec sensitized photographic material (pack_offspec_photographic_material)

Rejected coated plate, film or assembled instant-film material is recorded separately from clean uncoated support scrap.

• Selected flow: Off-spec sensitized photographic material waste
• Flow property / unit: Mass / kg
• Amount rule: Measured mass rejected after sensitization and sent to silver recovery, treatment or disposal
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg net saleable reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_solid_wastes
• Sources: us-epa-silver-risk-1980

Elementary flows

7. Allocation and Co-product Handling

rule_id	applies_to	rule	source_ids
allocation_avoid	shared foreground processes	Prefer subdivision and direct metering by emulsion family, coating line, support type, format and packaging campaign before applying allocation.
allocation_mass_or_area	inseparable shared coating campaigns	If subdivision is not possible, allocate support, coating materials, utilities and losses by measured coated area adjusted by product-specific wet or dry coating mass; use net product mass only when area and coating-load data are unavailable, and disclose the hierarchy used.
allocation_packaging	converting and packaging	Assign format-specific packaging components directly by bill of materials and accepted unit count; do not spread instant-film components to conventional film or plate products.	us-patent-5356762; us-patent-6814329
allocation_silver_recovery	recovered silver-bearing outputs	Treat recovered silver or silver-bearing concentrate according to the study's declared allocation or substitution method. Report recovered mass, quality, destination and any credited burden separately; do not omit recovery because it has revenue.	us-epa-silver-risk-1980
allocation_rework	internal rework	Return internally reworked emulsion or support to the consuming process without creating a co-product; count only make-up inputs, unrecovered loss and additional energy once.

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_emulsion_materials	emulsion_preparation	silver nitrate, potassium bromide and gelatin inputs	batch issue and return records	material id; grade; lot; gross issue; return; dry solids; batch id; accepted emulsion	Reconcile warehouse issue/return with signed batch recipes	kg	each batch	representative 12-month period or full shorter campaign	all reporting-site emulsion lines	Sum net consumed mass and normalize through conforming product output	calibrated scales; supplier certificate; recipe revision; batch reconciliation
cp_emulsion_utilities	emulsion_preparation	process water and electricity	meters and batch utility logs	meter start/end; batch id; make-up water; recirculation; electricity; allocation driver	Use dedicated meters; otherwise reconcile shared meters to operating hours and measured load	kg water; MJ electricity	batch and monthly	same period as product output	all reporting-site emulsion utilities	Sum make-up water and electricity and normalize to conforming output	meter calibration; utility invoice reconciliation; downtime log
cp_coating_materials	support_coating_drying	support and solvent inputs	roll/plate issue, tank charge and recovery records	support material; lot; input mass; unused return; solvent charge; recovered solvent; coating campaign	Reconcile material issues, tank records and recovery-system returns	kg	each campaign	same period as product output	all coating lines in scope	Sum net external input; exclude verified closed-loop return to the same process	weighbridge or scale checks; bill of materials; solvent inventory balance
cp_coating_utilities	support_coating_drying	water, electricity and natural gas	utility meters and line logs	meter readings; reference conditions; line id; operating hours; product campaign	Read dedicated meters or allocate reconciled shared meter totals using measured line load and operating time	kg water; MJ electricity; m3 gas	shift, campaign and monthly	same period as product output	coating, drying and associated clean-room utilities	Sum by campaign and normalize to conforming output	meter calibration; invoices; reference-condition record; allocation calculation
cp_coating_wastewater	support_coating_drying	silver-bearing wastewater	flow meter, tank transfer and laboratory records	wastewater mass or volume; density; silver concentration; stream origin; treatment destination; recovered silver	Measure each segregated stream at the treatment hand-off and pair with a representative laboratory result	kg; mg Ag/L	transfer or daily composite	same period as product output	all in-scope silver-bearing wastewater streams	Convert volume with measured density where needed; sum mass and retain silver load separately	meter calibration; chain of custody; laboratory method; treatment manifest
cp_combustion_emissions	support_coating_drying	direct fossil carbon dioxide	fuel meter and supplier composition records	gas volume; temperature; pressure; carbon content; oxidation fraction; stack result if available	Reconcile metered fuel with supplier certificate and verified combustion or stack records	m3 gas; kg CO2	monthly and campaign allocation	same period as product output	all on-site gas combustion assigned to coating/drying	Apply calc_combustion_co2 and normalize to conforming output	meter calibration; supplier certificate; calculation workbook or stack report
cp_packaging_materials	converting_packaging	instant-film sheets, composition, cassette and paper box	bill of materials, issue and count records	component id; material; unit mass; issued count; accepted count; rejects; returned mass	Reconcile component issues to released unit count and measured component mass	kg; item	each packaging or assembly campaign	same period as product output	all converting and assembly lines in scope	Sum net consumed component mass and normalize to net product output	approved bill of materials; scale checks; issue/return reconciliation
cp_converting_utilities	converting_packaging	electricity	submeter and machine log	meter readings; machine id; operating hours; campaign; accepted output	Read line submeter or allocate reconciled meter totals by measured machine load and operating time	MJ	shift and monthly	same period as product output	slitting, perforating, loading, assembly, inspection and packaging	Sum and normalize to conforming output	meter calibration; invoice reconciliation; machine log
cp_product_output	converting_packaging	conforming reference product	release, count and net-mass records	lot; format; accepted quantity; sampled unit mass; net product mass; packaging convention; release status	Determine lot net mass from calibrated bulk weighing or accepted count times representative measured unit mass	kg	each released lot	same period as all inputs	all released products in declared dataset	Sum released net mass; normalize all exchanges by this amount	release certificate; scale calibration; sampling plan; mass reconciliation
cp_solid_wastes	converting_packaging	sensitized trim and off-spec material	waste container and recovery records	waste type; sensitized state; mass; silver-bearing status; destination; recovery certificate	Segregate coated trim and off-spec material from clean support and weigh at transfer	kg	each container or transfer	same period as product output	all in-scope converting and quality-reject points	Sum each atomic waste stream separately and normalize to conforming output	scale calibration; waste manifest; recovery receipt; segregation audit

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_normalize_reference	all inventory rows	normalized amount = period exchange amount / period net conforming reference-product mass	matched-period exchange record; cp_product_output net mass	exchange per 1 kg reference product
calc_area_length_mass	area-, length- or count-based support and product records	mass = measured area × lot-specific basis mass; or mass = measured volume × lot-specific density; count conversion uses sampled mean unit mass under the approved sampling plan	area or length and width; thickness; density; count; sampled unit mass	kg input or output
calc_combustion_co2	coat_fossil_co2	fossil CO2 mass = metered gas quantity × supplier fossil-carbon content × oxidation fraction × 44/12, with units reconciled and reference conditions documented	natural-gas record; carbon content; oxidation fraction	kg fossil CO2
calc_silver_balance	campaign silver accounting	silver input = silver in product + recovered silver + silver in liquid waste + silver in solid waste + quantified inventory change; report unresolved imbalance without forcing closure	reagent certificates; product assay or coating load; waste assays; recovery records; inventory change	campaign silver balance and closure percentage	us-epa-silver-risk-1980

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	reference product and inputs	Match product form, support, chemistry, coating configuration, format and market state to the declared dataset; retain supplier grade and lot for chemistry-sensitive inputs.	release specification; bill of materials; supplier certificates; lot records
dq_temporal	all foreground records	Use a continuous representative 12-month period where production is continuous, or the complete campaign when production is shorter; identify atypical shutdown or start-up periods.	dated meters, batch logs, production calendar and deviation record
dq_completeness	material, energy, waste and emission rows	Reconcile purchases/issues, returns, inventory change, recovered materials, product and wastes; explain every omitted expected row and every balance gap.	mass and energy reconciliations; cut-off register; waste manifests
dq_silver	silver-bearing system	Maintain traceability from silver-bearing reagent through coated product, wastewater, solid waste and recovery; report concentration methods and detection limits.	laboratory reports; recovery receipts; silver mass balance
dq_allocation	shared processes	Document subdivision attempts, allocation hierarchy, drivers and sensitivity for materially shared burdens.	meter map; campaign schedule; allocation workbook; sensitivity result
dq_geography_technology	upstream datasets	Match supplier geography, electricity grid, support technology, solvent recovery, drying technology and treatment route, or disclose and assess each mismatch.	supplier location; dataset metadata; technology description; representativeness assessment

9. Validation Rules

rule_id	applies_to	rule	source_ids
validation_reference_flow	reference product	Confirm that the output is sensitized, unexposed and quality-conforming; reference amount is exactly 1 kg net product and required qualifiers are complete.	un-cpc-3-0-structure-2025
validation_atomic_inventory	process inventory	Confirm every selected flow is one atomic material, energy, waste or emission exchange; formulation-specific additions must be separate rows with route conditions.
validation_process_alignment	process map and cards	Confirm every required process has a matching inventory section and every conditional row agrees with the declared support, chemistry and instant-film construction.	us-patent-4564591; us-patent-5356762; us-patent-6814329
validation_mass_energy	foreground calculations	Recalculate reference normalization, count/area conversions, utility conversions and the product/waste mass reconciliation from retained raw records.
validation_silver_balance	silver-bearing routes	Check campaign silver balance inputs, product, recovered material, wastewater, solid waste and inventory change; flag an unexplained imbalance rather than inserting an estimated loss flow.	us-epa-silver-risk-1980
validation_uuid_scope	Tiangong references	Confirm each UUID remains public state 100 and matches name, flow type, classification, property, unit group and product state; unresolved rows remain explicitly UUID-empty.
validation_no_external_ranges	all important flows	Confirm that no external empirical range is claimed until at least two independent, original-text-verified and boundary-compatible sources support a synthesis; use foreground records for dataset values.

10. Published Dataset Profile

Field	Value
dataset_role	secondary_dataset or background_dataset representing cradle-to-gate production of the declared sensitized unexposed photographic product
downstream_use	Product-system modelling for photographic media, cameras, medical or industrial imaging, graphic arts, supply-chain screening and procurement where the declared product and geography match
allowed_use	Use after checking product form, support, imaging chemistry, format, instant-film construction, geography, production year, energy system, solvent recovery and treatment route
excluded_use	Direct representation of exposed or developed material, photo processing, non-photographic coated media, separately sold photographic chemicals, use-stage image formation or end-of-life
required_metadata	PCR id and version; product qualifiers; reference mass convention; geography and year; included sites and processes; support and chemistry route; instant-film components; allocation; upstream datasets; cut-offs; uncertainty; UUID gaps
required_quality_disclosure	Temporal coverage; meter and mass-balance quality; silver balance; allocation sensitivity; completeness; technology and geography mismatches; recovery and treatment boundaries; unresolved UUID and range-evidence needs
update_trigger	Change in support or photosensitive chemistry, coating architecture, solvent or silver recovery, drying energy, instant-film construction, packaging, site, grid, treatment route, allocation driver, product mass convention, or a material correction to foreground records

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 (retrieved 2026-09-07)	Official product classification identity and unexposed sensitized market state
cn-nbs-photographic-film-classification-2010	official_guidance	National Bureau of Statistics of China, Statistical Product Classification Catalogue, product 26180102, https://www.stats.gov.cn/sj/tjbz/tjypflml/2010/26/18/01/26180102.html (original text verified 2026-09-07)	Professional Chinese terminology for unexposed photosensitive plates and flat film, photographic film and instant photographic film
us-patent-4564591	literature	U.S. Patent US4564591A, Silver halide color photographic material, https://patents.google.com/patent/US4564591A/en (original text verified 2026-09-07)	Support materials, silver-halide multilayer coating, formulation additives, coating and drying process decomposition
us-patent-3849166	literature	U.S. Patent US3849166A, Method for providing subbing layer of photographic film, https://patents.google.com/patent/US3849166A/en (original text verified 2026-09-07)	PET support treatment, aqueous process steps, methanol and acetone inputs, coating and drying
us-patent-6814329	literature	U.S. Patent US6814329B2, Production managing method for photo film production, https://patents.google.com/patent/US6814329B2/en (original text verified 2026-09-07)	Slitting, perforating, loading, inspection and light-tight packaging process decomposition
us-patent-5356762	literature	U.S. Patent US5356762A, Film-sheet assemblage for peel-apart self-developing film, https://patents.google.com/patent/US5356762A/en (original text verified 2026-09-07)	Instant-film photosensitive and image-receiving sheets, processing-liquid pod and light-tight cassette boundary
us-epa-silver-risk-1980	official_guidance	U.S. Environmental Protection Agency, Exposure and Risk Assessment for Silver, 1980, https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9101LCQG.TXT (original text verified 2026-09-07)	Silver-bearing manufacturing wastewater, contaminated emulsion and scrap trim, recovery and silver mass-balance requirements