Other recording media, including matrices and masters for the production of disks

1. Scope and Applicability

This PCR covers manufacture of unrecorded physical master and matrix blanks and unrecorded wax sound-recording blanks. Recorded masters, recorded wax blanks and gramophone records are outside this boundary. Magnetic media, laser-recordable optical media, solid-state storage and smart cards belong to their own product categories. The unrecorded condition is mandatory, including when the item is intended for later replication. These distinctions follow un-cpc-3-0-notes-2025.

The representative route is an aluminum-backed nitrocellulose lacquer blank supplied before audio cutting. Its recording surface and substrate require separate material accounting; coating losses, solvent release, quality rejection and protective packaging require explicit collection. This material construction is supported by cci-recording-media-care; application and drying are modelled using the general coating principles in us-epa-ap42-industrial-coating. These sources do not prescribe a universal lacquer recipe or production yield.

For wax blanks or another unrecorded master substrate, instantiate a separate product-specific foreground package: declare the actual formulation, substrate, forming and finishing operations, and each individual exchange. The representative lacquer inventory cannot be assigned to a wax blank. Do not expand all product variants into repeated copies of common utilities. This is foreground dataset-production guidance, not an assertion of full life cycle or environmental-label certification.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.radio-television-and-communication-equipment-and-apparatus.other-recording-media-including-matrices-and-masters-for-the-production-of-disks
classification_refs	CPC 3.0 47590; classification context from un-cpc-3-0-structure-2025 and un-cpc-3-0-notes-2025
covered_products	Unrecorded master and matrix blanks; unrecorded wax sound-recording blanks
excluded_products	Recorded masters and stampers carrying recorded information; recorded wax blanks; gramophone records; magnetic and optical recording media; semiconductor storage; smart cards; recording equipment; recording services and intellectual-property originals
representative_product	Accepted unrecorded aluminum-backed nitrocellulose lacquer disc blank
production_route	Receipt of prepared aluminum disc substrates and formulated lacquer; conditional wet cleaning; coating and drying; inspection; protective packing
market_state	Dry, inspected, unrecorded blank ready for downstream cutting, with a declared substrate, dimensions and recording-surface specification

3. Reference Flow

Field	Value
What	Supply an unrecorded physical blank suitable for the declared downstream sound-master cutting operation
How much	Declared unit: 1 kg net accepted blanks of one design; disclose blank count and usable recording-surface area associated with that mass
How well	Meet the purchaser's documented dimensions, flatness, surface integrity, adhesion and cutting-compatibility specification; no recorded information at dispatch
How long or cycle	One production lot through factory dispatch; disclose supplier storage conditions and shelf-life evidence, with no assumed recording lifetime or replication count
reference_flow_link	reference_blank is the sole quantitative reference output of inspection_pack; it excludes packaging mass

Field	Value
Reference amount	1
Reference product flow	Unrecorded aluminum-backed nitrocellulose lacquer disc blank
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	Unrecorded state; master-blank function; substrate material and alloy; coating formulation identifier and solids content; blank diameter and thickness; coated sides; usable recording area; net mass per blank; accepted count; surface and cutting acceptance specification; storage requirements; manufacturing geography and technology; reporting period; supplier starting condition; included packaging; foreground and upstream boundaries

These qualifiers must be recorded in the foreground package. The declared mass unit is not a claim that equal masses of different blank designs deliver equivalent recording service. Downstream recording duration and replication yield require separate functional-unit modelling.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
net_reference_mass	Accepted blanks and internal transfers	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Weigh dry blanks after conditioning, excluding sleeves and boxes. Convert count with measured lot-specific mean blank mass; retain sample count, variability and scale calibration.
coating_basis	Liquid lacquer and acetone	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Record supplied formulation mass, dry solids and each solvent mass fraction separately. Do not equate liquid formulation mass with dry coating mass or count its ingredients again as purchased inputs. Convert volume only with supplier or measured density and temperature.
alkali_basis	Sodium hydroxide	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Report NaOH mass from measured solution mass and assay; record dilution water separately only if added on site. Preserve the supplied concentration when linking an upstream dataset.
electricity_conversion	Electricity	Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66	MJ	Preserve measured kWh and use the exact unit identity 1 kWh = 3.6 MJ; record grid, voltage and metering boundary. Do not use an energy unit conversion as an emission factor.

5. System Boundary

rule_id	applies_to	rule	source_ids
boundary_unrecorded	Product eligibility	End manufacture before recording or cutting information into the blank. Recorded master manufacture, electroforming from recorded masters and record pressing are separate downstream systems.	un-cpc-3-0-notes-2025
boundary_foreground	Site operations	Include attributable preparation, coating, drying, ventilation, inspection, rejects, packing and waste handover. Record upstream supplier stages and inbound delivery separately when they are outside site records. Disclose any excluded attributable operation with a rationale.	us-epa-ap42-industrial-coating; ghg-protocol-product-standard-2011
boundary_emissions	Coating and cleaning	Include releases from formulation, thinner and cleaning solvent. Determine every emitted chemical from actual composition and measurements or a reconciled species balance; the acetone row applies only when acetone is present. Include capture, recovery, treatment inputs and treatment products if operated on site.	us-epa-ap42-industrial-coating
boundary_extension	Other routes and ancillary equipment	Document route applicability before calculating values. If on-site substrate forming, wax forming, combustion, solvent abatement or refrigeration occurs, collect its individual material, energy, waste and elementary exchanges; absence must be evidenced, not inferred from missing rows.	ghg-protocol-product-standard-2011

Boundary Abstraction

Field	Value
declared_starting_condition	Prepared bare aluminum disc substrates and formulated nitrocellulose lacquer received at the manufacturing site; record each supplier's included fabrication and delivery stages
starting_condition_role	Foreground collection entry point; it does not remove the upstream burdens of substrate or lacquer manufacture
product_classification_scope	Unrecorded physical blanks identified by the CPC notes; residual classification is not evidence that unrelated media share this route
recursive_input_rule	A purchased unrecorded blank used for further finishing is an upstream same-category input with its exact state and supplier dataset. Do not recursively recreate it within the same foreground process. Match internal transfers once and cancel them in the aggregate.
upstream_dataset_requirement	Link delivered substrate, coating, chemicals, electricity and packaging to compatible upstream datasets and link outgoing wastes to actual treatment. Disclose gaps; a site-only package is gate-to-gate and must not be labelled cradle-to-gate.
disclosure	Declare site, dates, route, subcontracting, suppliers, background versions and geography, transport inclusion, on-site treatment, waste destinations and exclusions. Downstream cutting, playback, replication and final-product disposal are outside this production package.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
blank_coating	Substrate preparation, lacquer application and drying	required	For the representative lacquer-blank route; wet cleaning and acetone use are conditional on actual records	Foreground manufacturing	Dry unrecorded coated blanks transferred to inspection
inspection_pack	Inspection, rejection and protective packing	required	Every supplied lot; sleeve and box rows apply only when used	Foreground finishing and dispatch	1 kg accepted unrecorded blanks, excluding packaging mass

The cards are a minimum collection pattern for the representative route. Record actual additional exchanges individually. All amounts are normalized to the same accepted-output denominator. Internal transfers are not additional final products, and their receiving and sending amounts must reconcile.

Process: Substrate preparation, lacquer application and drying (blank_coating)

Inputs

Product flows

Bare aluminum disc substrate for lacquer recording blanks (aluminium_substrate)

Record purchased prepared discs by actual alloy, geometry and surface state; upstream disc forming remains in the supplier dataset.

• Selected flow: Bare aluminum disc substrate for lacquer recording blanks
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Net substrate mass issued minus returns, including substrates ultimately rejected, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_coating_materials
• Sources: cci-recording-media-care

Formulated nitrocellulose lacquer for recording-disc coating (nitrocellulose_lacquer)

This is one supplied coating formulation, with recipe identifier, solids fraction and solvent composition. If mixed on site, replace its purchased-input boundary with separately measured ingredients.

• Selected flow: Formulated nitrocellulose lacquer for recording-disc coating
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Net liquid lacquer consumption corrected for stock changes and returns, divided by M_accept; retain dry-solids mass separately.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_coating_materials
• Sources: us-epa-ap42-industrial-coating

Process Water (process_water)

inclusion_condition: on-site aqueous substrate washing, rinsing or dilution occurs. Count supplied makeup only; internal recirculation is not fresh supply.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Metered supplied water mass, with measured density if converted from volume, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_coating_utilities
• Sources: ghg-protocol-product-standard-2011

Sodium hydroxide (sodium_hydroxide)

inclusion_condition: a documented NaOH substrate-cleaning bath is used. Record assay, dilution and discharge separately.

• Selected flow: Sodium hydroxide e0abcced-0611-4c24-9290-5a2c5a0c4169
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: NaOH solution issued times measured NaOH mass fraction, corrected for returns, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_coating_materials
• Sources: ghg-protocol-product-standard-2011

Electricity (coating_electricity)

Include preparation, application, electrical drying and ventilation; retain actual non-electric heat as separate exchanges if present.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ; Units of energy 93a60a57-a3c8-11da-a746-0800200c9a66
• Amount rule: Attributable measured kWh times 3.6, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_coating_utilities
• Sources: ghg-protocol-product-standard-2011

Acetone solvent (acetone_solvent)

inclusion_condition: acetone is separately added as thinner or cleaning solvent. Acetone already contained in supplied lacquer enters the species balance, not this purchased-input amount.

• Selected flow: Acetone solvent
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Net separately added acetone solvent mass corrected for stock changes, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_solvent_balance
• Sources: us-epa-ap42-industrial-coating

Outputs

Product flows

Dry unrecorded aluminum-backed nitrocellulose lacquer disc blank awaiting inspection (coated_blank_out)

Internal transfer to inspection with measured substrate-plus-dry-coating mass; do not count it as a second final reference output.

• Selected flow: Dry unrecorded aluminum-backed nitrocellulose lacquer disc blank awaiting inspection
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Dry transfer mass divided by M_accept; match coated_blank_in after documented stock changes.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_coating_materials
• Sources: cci-recording-media-care

Waste flows

Waste Alkaline Liquor (alkaline_wash_liquor)

inclusion_condition: spent NaOH substrate-washing liquor leaves the process. Record wet mass, pH, dissolved aluminum and actual treatment; this is one alkaline aqueous waste stream.

• Selected flow: Waste Alkaline Liquor ce738ef0-a711-4650-a38b-34479efd7559
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Exported spent liquor wet mass adjusted for storage, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_coating_wastes
• Sources: ghg-protocol-product-standard-2011

Solvent-bearing liquid nitrocellulose lacquer waste (liquid_lacquer_waste)

Collect unusable liquid coating separately from wash liquor and dry rejected discs; retain its solids and species composition.

• Selected flow: Solvent-bearing liquid nitrocellulose lacquer waste
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Measured exported liquid lacquer waste mass divided by M_accept; solvent content also enters the species balance.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_coating_wastes
• Sources: us-epa-ap42-industrial-coating

Elementary flows

acetone (acetone_air)

inclusion_condition: acetone is present and released during coating, drying or cleaning. Record environmental air release, excluding recovered or destroyed acetone.

• Selected flow: acetone 08a91e70-3ddc-11dd-9520-0050c2490048
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Measured or reconciled species-balance acetone release divided by M_accept; record method and uncertainty.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_solvent_balance
• Sources: us-epa-ap42-industrial-coating

Process: Inspection, rejection and protective packing (inspection_pack)

Inputs

Product flows

Dry unrecorded aluminum-backed nitrocellulose lacquer disc blank awaiting inspection (coated_blank_in)

Receive the matching internal coated-blank transfer. A purchased coated blank instead requires a disclosed upstream dataset and removes duplicated in-house coating burdens.

• Selected flow: Dry unrecorded aluminum-backed nitrocellulose lacquer disc blank awaiting inspection
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Received dry blank mass divided by M_accept; reconcile with coated_blank_out.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_dispatch
• Sources: cci-recording-media-care

Protective paper sleeve for recording disc (paper_sleeve)

inclusion_condition: a paper sleeve is supplied. Declare paper grade, coating and sleeve mass; retain any other actual packaging component in its own row.

• Selected flow: Protective paper sleeve for recording disc
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Issued sleeve mass minus unused returns, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_dispatch
• Sources: ghg-protocol-product-standard-2011

corrugated board boxes (corrugated_box)

inclusion_condition: corrugated board boxes protect the dispatched blanks. Record board grade and net packaging mass separately from the blank reference mass.

• Selected flow: corrugated board boxes 4f197bec-7b3b-11dd-ad8b-0800200c9a66
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Net box consumption mass divided by M_accept, using a documented shipment allocation for shared boxes.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_dispatch
• Sources: ghg-protocol-product-standard-2011

Electricity (packing_electricity)

Record inspection and packing equipment electricity separately from coating to prevent shared-meter double counting.

• Selected flow: Electricity 890a70b7-b677-4e2a-8a1b-7d017e0a10ae
• Flow property / unit: Net calorific value 93a60a56-a3c8-11da-a746-0800200c9a66 / MJ; Units of energy 93a60a57-a3c8-11da-a746-0800200c9a66
• Amount rule: Attributable measured kWh times 3.6, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_pack_energy
• Sources: ghg-protocol-product-standard-2011

Outputs

Product flows

Unrecorded aluminum-backed nitrocellulose lacquer disc blank (reference_blank)

The sole accepted reference output excludes packaging, rejects and blanks with recorded information. Retain acceptance evidence and lot-specific mass-to-count conversion.

• Selected flow: Unrecorded aluminum-backed nitrocellulose lacquer disc blank
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: M_accept / M_accept = 1 kg per declared unit; M_accept must be measured and positive.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_dispatch
• Sources: un-cpc-3-0-notes-2025

Waste flows

Rejected nitrocellulose lacquer-coated aluminum disc (rejected_disc)

Include failed blanks and destructive samples leaving as waste, with coating retained; record internal rework separately and disclose treatment destination.

• Selected flow: Rejected nitrocellulose lacquer-coated aluminum disc
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg; Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
• Amount rule: Measured rejected composite disc mass sent to treatment, divided by M_accept.
• Value mode: Calculated value (calculated_value)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg net accepted unrecorded blank output, excluding packaging
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_dispatch
• Sources: ghg-protocol-product-standard-2011

7. Allocation and Co-product Handling

rule_id	applies_to	rule	source_ids
allocation_subdivide	Shared manufacturing	Separate lines and meters first. For residual shared consumption, use a demonstrated causal driver, such as occupied equipment time or coated area for identical recipes, and retain the numerator and denominator. Equal mass alone does not establish equivalence between blank designs.	ghg-protocol-product-standard-2011
allocation_rejects	Rejects and internal rework	Keep failed blanks, destructive acceptance samples and unrecovered coating losses within the lot burden. Internal rework is an internal transfer, not a saleable co-product or avoided virgin-material credit.	ghg-protocol-product-standard-2011
allocation_coproduct	Saleable recoveries	For a genuine co-product use a justified physical relationship; if no applicable physical relationship exists, document economic or another justified allocation. Record the recovery boundary and recipient; apply one consistent recycling method and disclose it.	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_coating_materials	blank_coating	Substrate, lacquer and alkali inputs; coated transfer	Weighing and stock records	lot_id; supplier; substrate_alloy; received_mass; opening_stock; closing_stock; issued_mass; returned_mass; formulation_id; solids_fraction; NaOH_fraction; transfer_mass	Calibrated weighing, stock reconciliation, supplier specification and assay	kg; mass fraction	Every lot and stock closure	All lots in the declared continuous reporting period, including startup and rework	Named coating site and subcontractor handovers	Sum net consumption and transfers separately, then divide by accepted dry output mass	Scale calibration; invoices; formulation and assay records; linked lot tickets
cp_coating_utilities	blank_coating	Water and electricity	Meter records	meter_id; timestamps; opening_reading; closing_reading; process_assignment; shared_driver; water_density; water_temperature	Meter deltas; documented physical allocation if shared	kg; m3; kWh	Every shift or metered campaign	Same period as production; include drying and ventilation outside active coating time	Coating, preparation and attributable auxiliary equipment	Net meter delta allocated once; density-based water conversion and exact energy conversion; normalize by accepted output	Calibration; meter diagram; bills; driver reconciliation
cp_solvent_balance	blank_coating	Acetone supply and air release	Composition, test and balance records	species; formulation_mass; solvent_fraction; added_solvent_mass; inventory_change; residual_in_product; waste_solvent_mass; recovered_export; destruction_mass; stack_mass; fugitive_mass	Supplier composition plus site assay, stock balance and representative stack/fugitive measurements; log control-system operation	kg/species	Each formulation and campaign; after recipe or control change	Same complete production period	Whole coating and cleaning solvent system including drying and local recovery	Per-species input equals air release plus product retention, wastes, recovery export, destruction and inventory increase; internal recovered reuse cancels	Composition certificate; test method; sampling coverage; residual and recovery records; closure uncertainty
cp_coating_wastes	blank_coating	Alkaline wash liquor and liquid lacquer waste	Waste handover records	stream_id; batch; wet_mass; water_fraction; solvent_fraction; pH; destination; carrier; transfer_date	Weigh separately at each transfer; sample stream composition; verify treatment receiver	kg; mass fraction; pH	Each transfer and representative sampling campaign	All transfers and stock changes in the production period	Coating site to named treatment handover	Net exported wet mass per stream, with composition; no combination of spent lacquer and wash liquor	Weighbridge tickets; waste manifests; analytical results; treatment contract
cp_dispatch	inspection_pack	Coated transfer, packaging, accepted and rejected blanks	Lot inspection and dispatch records	lot_id; incoming_blank_mass; accepted_count; unit_mass_samples; accepted_mass; reject_mass; stock_change; sleeve_mass; box_mass; surface_test; dimensions; cutting_test; unrecorded_check; storage_conditions	Calibrated weighing and count reconciliation; purchaser-specific inspection; packaging issue and return records	kg; count; mm; m2	Every lot; sample unit mass and quality under a documented acceptance plan	Same period as coating including rejects and opening/closing stock	Named inspection and packing site	Reconcile transfer to accepted output, rejects and stock; net packaging consumption per accepted output; no averaging of incompatible designs	Test records; sampling plan; scale certificates; dispatch tickets; packaging specifications
cp_pack_energy	inspection_pack	Inspection and packing electricity	Meter and equipment records	meter_id; kWh; run_time; standby_time; allocation_driver; lot_id	Submeter or validated equipment study reconciled to facility meter	kWh	Each lot or shift	Same period as accepted output	Inspection and packing equipment	Attribute once, include measured standby, convert to MJ and normalize	Calibration; equipment study; facility reconciliation

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
normalize_lot	Every inventory row	q_i = Q_i / M_accept, with M_accept > 0; combine compatible lots by sum(Q_i)/sum(M_accept), never an unweighted mean of lot intensities. Q_i is allocated net consumption, transfer, waste or release in the declared period.	Protocol-specific Q_i; accepted dry mass from cp_dispatch	Exchange per 1 kg accepted blank	ghg-protocol-product-standard-2011
blank_mass_balance	Dry blank transfers	M_in = M_accept + M_reject + delta_M_stock for inspection; account separately for any sampled or reworked material. Pair coated_blank_out and coated_blank_in before aggregation.	cp_coating_materials; cp_dispatch	Lot and transfer reconciliation; accepted yield from actual records	ghg-protocol-product-standard-2011
solvent_species_balance	Acetone and each additional actual solvent	E_air = M_in - M_retained - M_waste - M_recovered_export - M_destroyed - delta_M_stock. M_in includes the species in supplied lacquer and separately added solvent. Validate with measurements and uncertainty; negative results require investigation, not clipping to zero. A destruction term requires a balanced treatment model.	cp_solvent_balance	Species-specific residual air release; distinguish measured from balance-derived results	us-epa-ap42-industrial-coating
coating_solids_check	Lacquer deposition	Compare dry coating gain against supplied nonvolatile solids less solids in wastes and stock change. Retain substrate mass and residual-solvent correction; do not force unmatched mass into a generic emission.	cp_coating_materials; cp_solvent_balance; cp_coating_wastes	Evidence of coating and solvent balance closure	us-epa-ap42-industrial-coating

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	Product and route	Preserve unrecorded status and all reference qualifiers. Historic media composition is not a modern supplier recipe or production-intensity dataset.	Supplier and acceptance records; un-cpc-3-0-notes-2025; cci-recording-media-care
dq_coverage	Foreground records	Cover a disclosed continuous period with startup, standby, rework, failures and stock changes. Assess temporal, geographic and technological representativeness, completeness and reliability; never treat absent data as zero.	Protocol records and coverage matrix; ghg-protocol-product-standard-2011
dq_uncertainty	Balances and allocation	Retain measurement uncertainty, analytical detection limits, shared-meter drivers and unmeasured residuals. Establish site-specific balance acceptance from instrument uncertainty; investigate exceptions.	Calibration, sampling and balance review; ghg-protocol-product-standard-2011
dq_composition	Coating and wastes	Obtain actual formulation and waste composition. Protect confidential detail through controlled evidence access while retaining enough information for independent verification.	Formulation certificate, assay and waste test; us-epa-ap42-industrial-coating

9. Validation Rules

rule_id	applies_to	rule	source_ids
validate_reference	Reference definition	Require exactly one accepted reference output, net mass basis, all qualifiers and evidence of the unrecorded state. Reject a recorded master or final pressing as the reference product.	un-cpc-3-0-notes-2025
validate_inventory	Exchanges and traceability	Require one atomic exchange per row, direction and type consistency, unit compatibility, and a collected or calculated amount linked to a protocol. Do not replace a missing flow identity with an approximate material or an aggregate waste label.	ghg-protocol-product-standard-2011
validate_balance	Production and solvent balances	Reconcile internal transfers, accepted mass, rejects, stock and packaging. Close solvent balances by species and state the uncertainty. Do not enter electricity-supply emissions again as direct foreground emissions.	us-epa-ap42-industrial-coating; ghg-protocol-product-standard-2011
validate_applicability	Conditional exchanges and route extensions	Document actual absence for nonapplicable cards. Add separate rows for any actual solvent, fuel, treatment input, treatment output or emission outside the representative pattern before claiming complete site coverage.	us-epa-ap42-industrial-coating; ghg-protocol-product-standard-2011
validate_evidence	Quantities and downstream use	Use actual foreground records for quantities. Generic coating tables and preservation conditions cannot supply disc-manufacture ranges. Separate gate-to-gate results from upstream-completed results and disclose missing stages and data.	cci-recording-media-care; us-epa-ap42-industrial-coating; ghg-protocol-product-standard-2011

10. Published Dataset Profile

Field	Value
dataset_role	secondary_dataset; background_dataset
downstream_use	Production input for a matching unrecorded master blank in downstream recording or replication models
allowed_use	Matching material, dimensions, surface specification, technology, geography and delivery boundary; convert to count only with documented blank mass
excluded_use	Recorded content, recorded stampers, pressed records, optical or magnetic media, solid-state devices; unsupported cross-design service comparison; complete playback or consumer-life-cycle claims from site-only data
required_metadata	All reference qualifiers; dataset owner and version; reporting period; supplier and background links; manufacturing route; process map; allocation; transport boundary; waste treatment; protocol identifiers
required_quality_disclosure	Coverage by process and exchange; measurement and model uncertainty; composition quality; sampling; internal-transfer reconciliation; missing identities or datasets; excluded stages; comparability restrictions
update_trigger	Change in substrate, formulation, geometry, acceptance specification, coating or drying technology, electricity supply, abatement, waste destination, packaging, supplier boundary or representativeness of the reporting period

11. Data Sources

Source id	Type	Reference	Used for
un-cpc-3-0-structure-2025	official_guidance	UNSD, CPC 3.0 structure, 30 June 2025, row 47590. https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Structure_30Jun2025.csv ; retrieved 2026-09-09	Classification identity; independence_key: un-cpc-3-0-2025
un-cpc-3-0-notes-2025	official_guidance	UNSD, CPC 3.0 explanatory notes, 30 June 2025, p. 260, subclasses 47540, 47550, 47590 and 47610. https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf ; retrieved 2026-09-09	Original-text eligibility and recorded/unrecorded exclusions; independence_key: un-cpc-3-0-2025
cci-recording-media-care	official_guidance	Joe Iraci, Canadian Conservation Institute (2020), Caring for audio, video and data recording media, Cat. No. CH57-4/6-2-2020E-PDF, ISBN 978-0-660-35113-1; Table 1 and sections on deterioration of lacquer discs. https://www.canada.ca/en/conservation-institute/services/preventive-conservation/guidelines-collections/caring-audio-video-data-recording-media.html ; retrieved 2026-09-09	Substrate/coating construction and surface-condition relevance; historical preservation guidance, not manufacturing quantities; independence_key: cci-caring-recording-media
us-epa-ap42-industrial-coating	official_guidance	US EPA, AP-42 section 4.2.2.1, General Industrial Surface Coating, April 1981, reformatted January 1995, process description and emissions discussion, pp. 1-3. https://www.epa.gov/sites/default/files/2020-10/documents/c4s02_2a.pdf ; retrieved 2026-09-09	Application/drying and coating/cleanup solvent accounting. General US coating guidance is used only for physical method principles; no default density, solvent fraction, emission factor or control efficiency adopted; independence_key: us-epa-ap42-4-2-2-1
ghg-protocol-product-standard-2011	standard	WRI/WBCSD, Product Life Cycle Accounting and Reporting Standard, 2011, chapters 7-9 and 13. https://ghgprotocol.org/sites/default/files/standards/Product-Life-Cycle-Accounting-Reporting-Standard_041613.pdf ; retrieved 2026-09-09	Boundary disclosure, data quality and allocation principles adapted to this inventory; this PCR does not claim certification or restrict LCA to greenhouse gases; independence_key: wri-wbcsd-product-standard-2011