Include content-master preparation performed by the reporting facility, injection moulding and stamping, reflective-layer deposition, protective varnishing and curing, label printing, inspection, internal handling, purchased electricity, process water, and exported manufacturing scrap through factory-gate release. Exclude distribution, use, end-of-life, and sale packaging unless a declared study extension models them separately.
us-epa-life-cycle-cd-dvd
boundary_non_optical_routes
Magnetic, diskette, microform, or other non-optical carrier routes
Do not substitute the optical-disc inventory pattern. Disclose the carrier route and add one atomic exchange per actual material, energy, water, waste, and direct-emission flow supported by foreground records and route-specific evidence.
un-cpc-3-0-explanatory-notes-2025
boundary_capital_goods
Capital equipment and infrastructure
Exclude moulding machines, metallizers, printing equipment, buildings, and durable stampers from the default foreground boundary; disclose and separately include them only when the study goal requires capital goods or their contribution is material.
分配规则 · 3
规则 ID
适用对象
规则
来源 ID
allocation_subdivision_first
Shared lines and auxiliary systems
Subdivide or meter the text-media lot directly wherever feasible. For a shared meter that cannot be subdivided, allocate by a documented causal driver such as machine operating time or measured throughput; mass allocation may be used only when the causal relationship is demonstrated.
allocation_internal_regrind
Polycarbonate regrind returned within the same process boundary
Treat internal regrind as an internal loop: do not report it as an exported waste or a second product. Record losses and additional energy once in the processes where they occur.
allocation_exported_scrap
Polycarbonate scrap crossing the foreground boundary
Report exported scrap as a waste flow. Do not credit avoided virgin material inside this foreground process unless a separately declared downstream recycling model applies a consistent substitution method.
校验规则 · 5
规则 ID
适用对象
规则
来源 ID
validate_reference_identity
Reference flow
Confirm the output is non-audio text material on a physical carrier, not audio, video, blank media, packaged software, online-only content, or a reproduction service; require all reference-flow qualifiers.
un-cpc-3-0-explanatory-notes-2025
validate_inventory_balance
Process inventory
Require exactly eight declared representative-route rows, with each selected flow atomic; flag any missing UUID only when it is absent from the manifest unresolved register, and confirm total rows equal UUID-matched plus unresolved rows.
validate_mass_normalization
Foreground calculations
Confirm measured conforming output is positive, every amount covers the same period, and every reported exchange is normalized to exactly 1 kg reference product.
validate_route_applicability
Carrier technology
Reject use of the optical-disc inventory pattern as a proxy for tape, diskette, microfilm, microfiche, or another carrier technology lacking a separately verified atomic inventory.
un-cpc-3-0-explanatory-notes-2025
validate_packaging_boundary
Sale packaging
Confirm sale packaging is excluded from the reference product and inventory; if an extended study includes it, require each packaging component to be a separate atomic flow outside this default eight-row pattern.