Automatic data processing machines, comprising in the same housing at least a central processing unit and an input and output unit, whether or not combined

1. Scope and Applicability

This PCR covers a complete automatic data processing machine whose declared product boundary is one housing containing at least a central processing unit and an input/output unit. Covered products include single-enclosure servers, workstations, desktop computers, integrated desktop or all-in-one computers, and comparable stationary computing equipment delivered as one configured machine. A rack-mount form factor does not by itself exclude a product when one rack chassis is the complete declared machine.

The foreground data package shall identify the exact machine type, manufacturer and model or configuration identifier, chassis boundary, CPU population, installed compute accelerators, memory, storage, built-in input/output and network interfaces, power supplies, internal cooling equipment, integrated display or input devices, assembly and test route, net device mass, and expected operating lifetime. Results for materially different configurations shall not be averaged unless configuration shares and the aggregation method are declared.

This PCR excludes portable computers, notebooks, tablets, mobile workstations, portable all-in-one computers, separately delivered displays and peripherals, standalone storage products, separate input or output units, bare components and parts, embedded dedicated-control equipment, blade enclosures, multi-node shared enclosures, clusters, rack-scale products, and automatic data processing machines delivered in system form. A single machine shall not be used as a proxy for a multi-machine system, data centre, cloud service, or computing service.

The default production boundary ends at the producer gate after configuration and production testing. Packaging, distribution, use, maintenance, external facility cooling, and end-of-life are included only when the declared study boundary requires them, but the machine configuration, measured power profile, cooling boundary, and expected operating lifetime shall still be reported so downstream use-stage modelling is reproducible.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.metal-products-machinery-and-equipment.office-accounting-and-computing-machinery.automatic-data-processing-machines-comprising-in-the-same-housing-at-least-a-central-pr-d2ad0c9a
classification_refs	CPC 3.0 45230 exact mapping context
covered_products	Complete single-enclosure servers, workstations, stationary desktop computers, integrated desktop or all-in-one computers, and comparable one-housing automatic data processing machines containing at least a CPU and an input/output unit
excluded_products	Portable computers and mobile workstations; multi-machine systems; blade or multi-node shared enclosures; clusters and rack-scale systems; standalone storage, input, output, display, or peripheral units; parts; embedded dedicated equipment; computing services
representative_product	One operational, configured and production-tested automatic data processing machine in a single declared housing at the producer gate
production_route	Supplier component and subassembly production; receipt and BOM reconciliation; system assembly and integration; firmware and software configuration; production testing; optional packaging and downstream life-cycle stages
market_state	Finished configured equipment, manufactured and production-tested, before detachable transport packaging unless packaging is separately declared

3. Reference Flow

Field	Value
What	Manufacture of a finished, configured automatic data processing machine within the covered single-housing boundary; downstream projections may extend this machine through its declared operating lifetime
How much	1 kg net mass of the finished machine at the producer gate, excluding detachable packaging and separately delivered peripherals
How well	Operational and released after the declared production tests, with machine type, chassis, CPU/accelerator, memory, storage, built-in I/O, power supply, internal cooling and integrated-device configuration declared
How long or cycle	One represented production period or batch at the producer gate; any use-stage projection shall additionally state expected operating lifetime, annual operating schedule, workload and maintenance scenario
reference_flow_link	reference_product

Field	Value
Reference amount	1 kg net finished machine
Reference product flow	Automatic data processing machines, comprising in the same housing at least a central processing unit and an input and output unit, whether or not combined 3c41eabb-f2b2-4e96-b24d-3485673d505f
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	machine type and form factor; manufacturer, model and configuration id; chassis or enclosure boundary; net mass per machine and machine count; CPU model, socket population and core count; accelerator or discrete GPU model, count and enabled state; installed memory type and capacity; storage technology, device count and capacity; built-in input/output and network interfaces; power-supply type, count and rating; internal air or liquid cooling hardware; integrated display and input devices; firmware and operating-system state used for testing; assembly and test site and route; production test and burn-in profile; power test method, operating modes, workload and settings; external cooling boundary and allocation; expected operating lifetime and use schedule; included accessories and packaging; geography and reference period

When constructing a foreground data package, every item in Required qualifiers shall be declared in dataset metadata, process notes, reference-flow comments, product descriptions, or equivalent structured fields. A missing qualifier makes the reference-flow definition incomplete for the represented configuration.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_mass	Finished reference machine	Mass 93a60a56-a3c8-11da-a746-0800200b9a66	kg	Weigh the released configured machine including components installed inside the declared housing. Exclude detachable transport packaging, separately shipped display, keyboard, mouse, cables, rack, external UPS and other peripherals unless physically integrated and declared within the product boundary.
device_count_mass	Machine count and mass conversion	Mass and number of items	kg and item	Record both net mass per machine and machine count for the same configuration and lot. Convert item records to kg only from verified configuration-specific mass; do not apply a generic computer or server mass factor.
configuration_identity	CPU, accelerators, memory, storage, built-in I/O and cooling	Configuration-specific counts and capacities	item; socket; core; GB; TB; W as applicable	Preserve the as-built configuration linked to the BOM and serial or lot record. Do not combine configuration variants whose component population or power behaviour materially differs without declared production-weighted shares.
energy_preservation	Assembly, test, use and maintenance energy	Energy and power	kWh; W; native fuel or thermal-energy unit retained	Preserve electricity, fuels, heat and cooling carriers separately. Convert measured power and time to electricity using kWh = W x hours / 1000. Do not treat rated PSU power, thermal design power or nameplate power as measured device energy.
operating_mode_power	Device use electricity	Power and time	W and h	Record measured power for the declared active workload, idle, sleep or alternative low-power, and off states that occur in the use scenario, together with test method, settings, peripherals, network state and measurement uncertainty. Use only modes applicable to the represented machine.
cooling_boundary	Internal and external cooling	Electricity, heat or cooling service	kWh; MJ; other metered cooling-service unit	Internal fans, pumps and integrated cooling controls are part of measured device power. External room, rack or data-centre cooling shall be a separate conditional burden based on measured facility records and a disclosed causal allocation; it shall not be embedded again in device power.
service_life	Use, maintenance and result interpretation	Time	year; operating hour	State expected operating lifetime, evidence basis, operating hours, workload evolution, downtime, repairs and refurbishment. Do not infer lifetime from warranty or depreciation alone when actual-use or fleet-retirement evidence is available.
packaging_boundary	Packaging and in-box accessories	Mass and item count	kg and item	Keep detachable packaging and separately delivered accessories outside reference-product mass and inventory them separately. An integrated display, built-in input unit or permanently installed cable remains inside the machine boundary when part of the as-built configuration.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Received configuration-specific components, subassemblies and direct materials identified by the as-built BOM at the system assembly site
starting_condition_role	Physical foreground starting point for assembly and testing; component manufacture remains upstream and shall be represented by supplier-specific or reviewed secondary datasets
product_classification_scope	One complete CPC 45230 single-housing automatic data processing machine, not a portable computer, component, peripheral, storage unit, multi-node enclosure or system-form delivery
recursive_input_rule	A purchased complete machine in the same category shall be recorded as a separate upstream product input with its configuration, quantity and dataset; do not reopen it into the current assembly BOM and double count its burdens
upstream_dataset_requirement	Every material component or subassembly group in the BOM shall link to supplier-specific data or an explicitly disclosed secondary proxy matching technology, geography, time and component function as closely as available
disclosure	Declare machine type and configuration, included housing and accessories, component-data coverage, assembly and test sites, packaging and distribution scope, use and cooling scenario, maintenance, expected lifetime, end-of-life route, cut-offs, allocation and every proxy

rule_id	Applies to	Rule	source_ids
boundary_configuration	Product identity and all processes	Model one homogeneous as-built configuration or a transparently weighted configuration mix. The BOM, device mass, power tests, production tests, use profile and lifetime shall refer to the same configuration or to explicitly reconciled configuration shares.	itu-t-l1410-2024; energy-star-computers-v8-2022; eu-regulation-2019-424
boundary_component_supply	Upstream component production	Include the CPU and other processors, accelerators, memory, storage, motherboard and printed circuit assemblies, power supplies, chassis and mechanical parts, built-in I/O and networking, internal cooling, integrated display or input equipment, wiring and other installed parts through linked upstream datasets. Do not treat missing supplier data as zero.	itu-t-l1410-2024
boundary_assembly_test	Producer foreground	Include component receiving and internal transport, system assembly, fastening and interconnection, firmware loading, configuration, functional and safety tests, burn-in when performed, test failures and rework, direct materials, electricity, utilities, wastes and on-site treatment attributable to the represented production.	itu-t-l1410-2024; energy-star-computers-v8-2022; eu-regulation-2019-424
boundary_packaging_distribution	Post-test logistics	Record detachable packaging and in-box accessories separately. Include outbound distribution only when the study boundary extends beyond the producer gate, with origin, destination, transport mode, load factor and distance declared.	itu-t-l1410-2024
boundary_use_and_cooling	Use-stage projections	Include measured or reproducibly calculated device electricity for the declared workload and operating modes over the expected lifetime. Include external facility cooling only when within study scope and causally allocated; keep internal cooling inside device power and prevent double counting.	itu-t-l1410-2024; energy-star-computers-v8-2022; eu-regulation-617-2013; eu-regulation-2019-424
boundary_maintenance_eol	Full life-cycle projections	Include replacement parts, repair and refurbishment that occur in the declared lifetime, and applicable collection, preparation for reuse, dismantling, recycling and disposal at end of life. State the boundary between first use, refurbishment and any second life.	itu-t-l1410-2024; eu-regulation-2019-424
boundary_scope_exclusions	Category separation	Exclude and separately model portable computers, mobile workstations, blade or multi-node shared enclosures, clusters, rack-scale or system-form deliveries, standalone storage or peripheral units, facility racks, UPS, network infrastructure and computing services. A single-machine record shall not stand in for any excluded system.	energy-star-computers-v8-2022; eu-regulation-2019-424

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
bom_upstream	Configuration BOM reconciliation and upstream component linking	required	Always required	Establish the as-built component population and connect every material component group to upstream production data	Component and subassembly input per kg released machine
assembly_integration	System assembly and hardware integration	required	Always required	Assemble, fasten, interconnect and integrate the configured machine in its declared housing	Assembled machine transferred to configuration and test
configuration_testing	Firmware configuration, production testing and producer-gate release	required	Always required	Configure, test, burn in when applicable, rework and release the operational machine; inventory packaging separately	1 kg net released reference product
use_maintenance	Use, cooling, maintenance and repair	conditional	Required when the study extends beyond the producer gate; configuration, power profile and expected lifetime metadata remain mandatory otherwise	Provide the declared computing use over the expected lifetime and account for attributable cooling and maintenance	One declared machine-use scenario, normalized to kg reference product
end_of_life	Collection, preparation for reuse, dismantling, recycling and disposal	conditional	Required for cradle-to-grave studies and when an end-of-life scenario is reported	Treat the used machine and packaging without silently crediting recovered outputs	Used machine entering declared end-of-life routes

Process: Configuration BOM reconciliation and upstream component linking (bom_upstream)

Inputs

Product flows

Configuration-specific components and subassemblies (configured_components)

All installed components and direct material groups in the as-built BOM cross the upstream boundary through this row, with separate identities and upstream datasets retained in the data package.

• Selected flow: Configuration-specific CPU, accelerator, memory, storage, motherboard, power, chassis, I/O, cooling and integrated-device component inputs
• Flow property / unit: Mass / kg; item counts and capacities retained as qualifiers
• Amount rule: Measured or supplier-declared mass and installed count for every BOM line, reconciled to the represented configuration
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_configuration_bom
• Sources: itu-t-l1410-2024

Waste flows

Elementary flows

Outputs

Product flows

Reconciled component kit for assembly (component_kit)

The reconciled component kit transfers the as-built BOM into system assembly without changing upstream component quantities.

• Selected flow: Reconciled component and subassembly kit
• Flow property / unit: Mass / kg
• Amount rule: Sum of installed component and direct-material mass assigned to the configuration
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_configuration_bom

Waste flows

Incoming component packaging and rejected receipts (incoming_component_waste)

Supplier packaging managed at the assembly site and rejected or damaged received components are reported gross by material and destination.

• Selected flow: Incoming packaging waste and rejected received components
• Flow property / unit: Mass / kg
• Amount rule: Weighed waste transfers and rejected-receipt records; do not net recycling proceeds or returns
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_energy_waste

Elementary flows

Process: System assembly and hardware integration (assembly_integration)

Inputs

Product flows

Reconciled component kit input (component_kit_input)

The configuration-specific kit enters the physical assembly line.

• Selected flow: Reconciled component and subassembly kit
• Flow property / unit: Mass / kg
• Amount rule: Quantity transferred from component_kit for the same configuration and batch
• Value mode: Calculated value (calculated_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_configuration_bom

Assembly electricity and utilities (assembly_energy)

Electricity and other utilities used for fastening, soldering or joining when performed, cabling, handling, firmware stations and assembly-area environmental control are recorded by carrier.

• Selected flow: Electricity and separately metered assembly utilities
• Flow property / unit: Energy / kWh; other carriers in native units
• Amount rule: Metered line or equipment consumption; otherwise documented allocation from reconciled facility totals
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_energy_waste

Assembly consumables (assembly_consumables)

Fasteners, thermal interface materials, solders, adhesives, cleaning agents and other consumables are included when used by the declared assembly route.

• Selected flow: Route-specific assembly consumables
• Flow property / unit: Mass / kg; native purchase unit retained
• Amount rule: Inventory issues or batch records reconciled to the represented production
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_energy_waste

Waste flows

Elementary flows

Outputs

Product flows

Assembled configured machine (assembled_machine)

The mechanically and electrically integrated configuration leaves assembly for firmware configuration and production testing.

• Selected flow: Assembled configured automatic data processing machine
• Flow property / unit: Mass / kg
• Amount rule: Weighed assembled output before test, linked to BOM configuration and batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per assembly batch output
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly_test_yield

Waste flows

Assembly scrap, failed parts and rework losses (assembly_waste)

Scrap, failed components, cleaning waste and material losses are reported before any off-site recycling or treatment credit.

• Selected flow: Assembly scrap and failed component waste by material and destination
• Flow property / unit: Mass / kg
• Amount rule: Weighed or stock-reconciled gross output from the represented assembly batch
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_material_energy_waste

Elementary flows

Process: Firmware configuration, production testing and producer-gate release (configuration_testing)

Inputs

Product flows

Assembled machine input (assembled_machine_input)

The assembled configuration enters firmware loading, functional testing, burn-in where required, final inspection and release.

• Selected flow: Assembled configured automatic data processing machine
• Flow property / unit: Mass / kg
• Amount rule: Quantity transferred from assembled_machine for the same batch
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per test batch input
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly_test_yield

Test and burn-in electricity (test_energy)

Electricity used for firmware configuration, functional tests, active workloads, idle checks, burn-in, final inspection and attributable test-area cooling is recorded separately from later use electricity.

• Selected flow: Electricity for configuration, production testing and burn-in
• Flow property / unit: Energy / kWh
• Amount rule: Metered test-station energy including duration and tested configuration; allocate shared test-area energy with a documented causal driver
• Value mode: Foreground record (foreground_record)
• Specificity: Technology-specific (technology_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly_test_yield
• Sources: energy-star-computers-v8-2022; eu-regulation-2019-424

Detachable packaging and in-box accessories (packaging_accessories)

Packaging and accessories shipped with the machine but outside the declared housing are inventoried separately and never added to reference-product mass.

• Selected flow: Detachable packaging and separately delivered in-box accessories
• Flow property / unit: Mass / kg and item
• Amount rule: Verified mass per packaging or accessory article multiplied by issued count, with reusable trips and losses disclosed
• Value mode: Foreground record (foreground_record)
• Specificity: Product-specific (product_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_packaging

Waste flows

Elementary flows

Outputs

Product flows

Released single-housing automatic data processing machine (reference_product)

The reference product is the operational configuration that passed the declared production release criteria.

• Selected flow: Automatic data processing machines, comprising in the same housing at least a central processing unit and an input and output unit, whether or not combined 3c41eabb-f2b2-4e96-b24d-3485673d505f
• Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
• Amount rule: 1 kg net released machine, with configuration-specific mass per item and item count retained
• Value mode: Fixed value (fixed_value)
• Specificity: Product-specific (product_specific)
• Normalization basis: 1 kg net finished machine
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Identity reference (identity_reference)
• Sources: itu-t-l1410-2024

Waste flows

Test failures, rework losses and packaging waste (test_release_waste)

Failed units or parts, rework losses and packaging waste generated before release are reported gross and linked to their treatment destinations.

• Selected flow: Test failure, rework and producer-gate packaging waste
• Flow property / unit: Mass / kg and item
• Amount rule: Test log and weighed waste transfer for the represented configuration and production period
• Value mode: Foreground record (foreground_record)
• Specificity: Site-specific (site_specific)
• Normalization basis: per 1 kg released reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_assembly_test_yield

Elementary flows

Process: Use, cooling, maintenance and repair (use_maintenance)

Inputs

Product flows

Released machine entering use (machine_entering_use)

The released configuration enters only the declared use scenario; it shall not be expanded to represent a cluster, rack or service.

• Selected flow: Released single-housing automatic data processing machine
• Flow property / unit: Mass / kg and item
• Amount rule: Same net machine mass and item count as the producer-gate reference flow
• Value mode: Calculated value (calculated_value)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per declared machine-use scenario
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_use_lifetime

Device use electricity (use_electricity)

Electricity is calculated from measured configuration-specific power and hours in applicable active, idle, sleep, alternative low-power and off modes.

• Selected flow: Electricity consumed by the declared machine during use
• Flow property / unit: Energy / kWh
• Amount rule: Sum of measured mode power multiplied by scenario hours, divided by 1000, over the declared expected operating lifetime
• Value mode: Calculated value (calculated_value)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per declared machine lifetime, then normalized to kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_use_lifetime
• Sources: itu-t-l1410-2024; energy-star-computers-v8-2022; eu-regulation-617-2013; eu-regulation-2019-424

External facility cooling (external_cooling)

Room, rack or data-centre cooling is included only when the study scope requires it and measured facility energy can be causally assigned without duplicating internal fan or pump electricity.

• Selected flow: Externally supplied cooling energy or electricity allocated to the machine
• Flow property / unit: Energy / kWh or MJ; native cooling-service unit retained
• Amount rule: Metered facility cooling attributable to the represented operating interval multiplied by the disclosed causal allocation share
• Value mode: Calculated value (calculated_value)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per declared machine lifetime, then normalized to kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_external_cooling
• Sources: itu-t-l1410-2024; eu-regulation-2019-424

Replacement parts and repair inputs (maintenance_inputs)

Parts, technician travel and repair energy are included when they occur within the declared operating lifetime.

• Selected flow: Configuration-compatible replacement parts and repair services
• Flow property / unit: Mass / kg; item; energy and transport service retained separately
• Amount rule: Actual fleet or service records for replacements and repairs; scenario estimates shall be identified and sensitivity-tested
• Value mode: Foreground record (foreground_record)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per declared machine lifetime, then normalized to kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_use_lifetime

Waste flows

Elementary flows

Outputs

Product flows

Used machine transferred to reuse or end-of-life decision (used_machine)

At the end of the declared first use, the complete remaining machine is transferred to reuse, refurbishment or waste treatment according to the stated scenario.

• Selected flow: Used single-housing automatic data processing machine
• Flow property / unit: Mass / kg and item
• Amount rule: Remaining machine mass and count after separately recorded replacement and removed parts
• Value mode: Calculated value (calculated_value)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per declared machine lifetime
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_use_lifetime

Waste flows

Removed and failed parts (maintenance_waste)

Parts removed during maintenance are reported gross by material or component type and destination.

• Selected flow: Removed electronic, mechanical, storage, battery and cooling-component waste
• Flow property / unit: Mass / kg and item
• Amount rule: Service record and weighed or supplier-declared mass of removed parts
• Value mode: Foreground record (foreground_record)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per declared machine lifetime, then normalized to kg reference product
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_use_lifetime

Elementary flows

Process: Collection, preparation for reuse, dismantling, recycling and disposal (end_of_life)

Inputs

Product flows

Waste flows

Used machine entering end-of-life treatment (used_machine_waste)

Only the share not transferred to a documented next life enters waste treatment in the current life cycle.

• Selected flow: Used single-housing automatic data processing machine for treatment
• Flow property / unit: Mass / kg and item
• Amount rule: Scenario-specific collected mass and count reconciled to reuse, refurbishment, recycling and disposal shares
• Value mode: Calculated value (calculated_value)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per declared machine lifetime
• Basis kind: Reference flow (reference_flow)
• Evidence kind: Calculated from collection (calculated_from_collection)
• Collection protocol: cp_end_of_life
• Sources: itu-t-l1410-2024

Elementary flows

Outputs

Product flows

Recovered materials and reusable components (recovered_outputs)

Recovered metals, plastics, glass, components and prepared-for-reuse products are reported gross without an implicit avoided-burden credit.

• Selected flow: Recovered material and reusable component outputs by type and quality
• Flow property / unit: Mass / kg and item
• Amount rule: Measured treatment outputs assigned to the incoming machine stream
• Value mode: Foreground record (foreground_record)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per kg used machine entering treatment
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_end_of_life

Waste flows

Treatment residues and final disposal (treatment_residues)

Residual hazardous and non-hazardous fractions sent to further treatment or final disposal are reported gross.

• Selected flow: End-of-life treatment residues by material and destination
• Flow property / unit: Mass / kg
• Amount rule: Measured treatment output and transfer records reconciled to incoming mass and recovered outputs
• Value mode: Foreground record (foreground_record)
• Specificity: Scenario-specific (scenario_specific)
• Normalization basis: per kg used machine entering treatment
• Basis kind: Process output (process_output)
• Evidence kind: Collected record (collected_record)
• Collection protocol: cp_end_of_life

Elementary flows

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_subdivision_first	Mixed models, configurations and shared lines	Prefer separate BOMs, batches, meters and test records for each materially different configuration. Apply allocation only after practical subdivision and direct assignment have been attempted.	itu-t-l1410-2024
allocation_shared_facility	Assembly, test, HVAC and facility utilities	Allocate unmetered shared burdens using the closest causal driver, such as equipment meter readings, line or test-station time, measured load, occupied area-time, airflow or cooling load, and report shares that sum to one. Production mass is a fallback only when causally defensible.	itu-t-l1410-2024
allocation_multi_output	Co-produced saleable products and recovered outputs	Use a demonstrated physical causal relationship when subdivision is unavailable. Economic allocation may be used only when no defensible physical relationship exists and shall disclose prices, period, currency, shares and sensitivity. Waste with no intended product function receives no production burden as a co-product.	itu-t-l1410-2024
allocation_recycling	Reuse, refurbishment, recycling and recovered materials	State the selected recycled-content, cut-off, substitution or other allocation approach and apply it consistently. Never combine approaches or grant an avoided-burden credit implicitly; keep gross waste and recovered-output quantities visible.	itu-t-l1410-2024

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_configuration_bom	bom_upstream; assembly_integration	Product identity, as-built BOM and component kit	Product lifecycle management, ERP, supplier specification, serial and weigh record	model; configuration id; serial or lot; chassis; machine type; CPU model, sockets and cores; accelerator model and count; memory type and GB; storage type, count and capacity; built-in I/O and network interfaces; PSU type, count and rating; cooling equipment; integrated display or input; component part number; supplier; mass; count; upstream dataset; proxy	Export the released as-built BOM, reconcile it to installed serial or lot records, and verify masses by supplier data or representative weighing	kg; item; socket; core; GB; TB; W	Every released configuration and BOM revision	Full represented production period	All included component supply and assembly sites	Sum component mass and counts by homogeneous configuration; retain configuration shares and upstream dataset links by BOM line	Released BOM, change-control record, supplier specification, scale record, serial genealogy and proxy review
cp_material_energy_waste	bom_upstream; assembly_integration	Direct materials, assembly utilities and waste	Meter, invoice, stock, batch, equipment and waste-transfer record	carrier or material; opening and closing stock or meter; purchase or generated quantity; equipment or line; operating time; batch; configuration; allocation driver; waste type; gross mass; destination	Use dedicated meters and material issues first; otherwise reconcile facility totals and apply documented causal allocation	kWh; MJ; kg; native carrier unit	Meter interval, material issue and every waste transfer	Full production period; continuous sites should normally cover 12 months or justify a shorter campaign	All included assembly buildings, lines and waste points	Preserve carriers and material identities; sum gross inputs and wastes by process and configuration before normalization	Calibration, invoice reconciliation, stock variance, equipment log, waste ticket and allocation workbook
cp_assembly_test_yield	assembly_integration; configuration_testing	Assembly output, firmware state, production test, burn-in, release and failures	Manufacturing execution system, test-station export, quality and rework record	configuration id; serial; firmware and OS image; assembly start and finish; test method; workload; settings; mode power where measured; test duration; burn-in duration; pass or fail; defect; rework; released mass; reject mass	Link assembly and test records by serial or homogeneous lot; meter test-station electricity and retain test procedure and calibration	kg; item; kWh; W; h	Every unit or statistically controlled lot, with coverage declared	Full represented production period	All assembly, configuration, test and rework stations	Count and mass-balance passed, reworked and rejected units by configuration; sum test energy and normalize to released mass	Test report, calibrated instrument record, firmware checksum, quality release, rework log and yield reconciliation
cp_packaging	configuration_testing	Detachable packaging and accessories	Packaging BOM, issue, return and sample-weigh record	article; material; mass per item; issued count; return count; reusable trips; recycled content; accessory identity; destination configuration	Weigh representative articles and reconcile issue and return counts to released units	kg; item; trip	Each packaging specification and production lot	Full represented production period	All producer-gate packaging operations	Multiply verified mass per item by net issued count; keep accessories and packaging separate from machine mass	Packaging specification, sample weighing, stock reconciliation and return log
cp_use_lifetime	use_maintenance	Power modes, workload, operating schedule, lifetime, repairs and removed parts	Laboratory power test, fleet telemetry, energy meter, asset, retirement and service record	configuration; firmware and settings; test method; voltage and frequency; active workload; active, idle, sleep, low-power and off W; uncertainty; annual mode hours; network state; internal cooling state; expected and observed lifetime; downtime; repair event; replacement part; removed mass	Prefer calibrated configuration-specific measurements and observed fleet schedules and retirement data; document scenario construction and sensitivity when records are incomplete	W; h/year; kWh; year; kg; item	Each configuration test and each fleet reporting interval or service event	Representative use period and complete observed lifetime where available	Declared user sites or use geography	Calculate mode-weighted electricity; aggregate only comparable workload and settings; retain lifetime distribution and repairs by configuration	Test report, meter calibration, telemetry coverage, asset register, retirement reason and service ticket
cp_external_cooling	use_maintenance	External room, rack or data-centre cooling	Facility electricity, cooling meter, environmental-control and IT-load record	cooling carrier; facility cooling energy; IT energy; device or rack load; temperature; humidity; interval; allocation boundary; driver; share; excluded internal cooling	Use measured cooling and IT loads for matching intervals; allocate with a physical driver and document whether UPS or other infrastructure is separate	kWh; MJ; cooling-service unit; %	Meter interval	Same representative period as device-use records	Only facilities included in the declared use boundary	Assign gross external cooling using the declared causal share; never add internal fan or pump electricity a second time	Calibrated meters, building-management export, matching timestamps, allocation workbook and boundary diagram
cp_end_of_life	end_of_life	Reuse, refurbishment, dismantling, recovery and disposal	Asset disposition, recycler, weighbridge and treatment record	configuration or equipment class; collected mass and count; direct reuse; refurbishment; dismantled component; recovered material; residue; destination; treatment; data-deletion route; allocation approach	Reconcile asset disposition and recycler outputs for the declared route; use scenario evidence only when foreground treatment records are unavailable and disclose it	kg; item; % route share	Every shipment or treatment batch; scenario review at study update	Declared end-of-life reference period	All included collection and treatment routes	Route shares sum to one; reconcile incoming mass to reuse, recovered outputs, residues and disclosed balance residual	Transfer note, certified recycler report, scale ticket, dismantling record, data-deletion evidence and mass balance

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
calc_reference_mass	Released reference product	Net machine mass = gross weighed release unit - detachable packaging - separately delivered accessories and peripherals. Integrated display, built-in I/O and internal cooling remain included.	cp_configuration_bom; cp_packaging; cp_assembly_test_yield	kg net machine and item/kg	itu-t-l1410-2024
calc_bom_balance	As-built configuration	Reconcile installed component and direct-material mass to assembled and released mass + producer waste + measured stock change + disclosed residual. Report the residual and its investigation.	cp_configuration_bom; cp_material_energy_waste; cp_assembly_test_yield	kg and mass-balance residual %	itu-t-l1410-2024
calc_inventory_normalization	Every production inventory row	Normalized amount = configuration-specific gross amount assigned to released units / net released machine mass for the same batch or represented period.	Applicable collection protocol; cp_assembly_test_yield	amount per kg reference product
calc_test_yield	Assembly and test	First-pass yield = units passing without rework / units tested; final release yield = released units / units entering test. Report rework and rejects separately and never use yield to net waste from input.	cp_assembly_test_yield	% yield, item and kg rejects
calc_use_electricity	Declared use scenario	Lifetime device electricity = sum over applicable modes of measured mode power W x hours in that mode / 1000, repeated over the declared lifetime. Preserve yearly values where workload or settings change.	cp_use_lifetime	kWh per machine lifetime and kWh/kg reference product	energy-star-computers-v8-2022; eu-regulation-617-2013; eu-regulation-2019-424
calc_external_cooling	External facility cooling	Allocated external cooling = measured facility cooling for matching interval x declared causal allocation share. Report the driver and sensitivity; exclude internal fans and pumps already captured in device power.	cp_external_cooling; cp_use_lifetime	kWh or MJ per machine lifetime and per kg reference product	itu-t-l1410-2024; eu-regulation-2019-424
calc_lifetime_results	Result interpretation	Lifetime-normalized result = total burden over declared first life / declared operating years; any second life or refurbishment shall use a separately stated boundary and allocation rather than silently extending the first-life denominator.	cp_use_lifetime; cp_end_of_life	burden per operating year and per declared lifetime	itu-t-l1410-2024
calc_eol_balance	End-of-life	Reconcile collected used-machine mass = direct reuse + refurbishment input + recovered material outputs + treatment residues + measured stock change + disclosed residual; route shares shall sum to one.	cp_end_of_life	kg, route shares and residual %	itu-t-l1410-2024

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_configuration_traceability	Product and BOM	Every result shall trace to a model or configuration id and BOM revision that identifies CPU/accelerators, memory, storage, I/O, power, cooling and integrated devices.	Released BOM, serial genealogy, configuration record and change control
dq_measurement	Mass, power, energy and waste	Use calibrated or verified instruments suitable for the measured range. Retain raw readings, conversions, uncertainty, allocation and reconciliation residuals.	Calibration certificate, meter export, scale check, test report and calculation workbook
dq_temporal	Foreground production and use	Cover the complete represented production period and all material routes. Continuous production should normally cover 12 consecutive months; shorter campaigns shall disclose seasonality, start-up and utilisation limitations.	Dated production, meter, purchase, test, shipment and maintenance records
dq_component_coverage	Upstream inventory	Provide upstream datasets for all material BOM groups and disclose supplier-data coverage by mass and by environmentally relevant component class. Missing semiconductor, display, battery or precious-metal-bearing components shall not be justified by mass cut-off alone.	BOM-to-dataset matrix, supplier data, proxy assessment and cut-off register
dq_power_profile	Use electricity	Power measurements and hours shall refer to the same configuration, firmware, settings, workload, voltage, network and internal-cooling state. Rated power is not acceptable as measured consumption.	Test method, test report, telemetry, workload definition and uncertainty record
dq_lifetime_representativeness	Expected lifetime and maintenance	Prefer actual fleet retirement and service evidence for comparable machines. Report source, sample size, distribution or scenario, excluded storage time, repair and refurbishment assumptions, and sensitivity.	Asset register, retirement and service records, survey or reviewed statistics
dq_boundary_completeness	Full inventory	Quantify every required process and applicable conditional stage, or explicitly justify omission. Keep production testing, packaging, use electricity, external cooling, maintenance and end-of-life distinct.	Process map, boundary diagram, omission register and reviewer sign-off
dq_proxy_disclosure	Secondary data	Match component technology, geography, production period and function as closely as available. State every proxy and expected direction of bias; do not use another computer PCR as component evidence.	Dataset metadata and documented proxy assessment

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validation_identity	Product scope	Fail when the dataset does not identify one complete single-housing machine with at least a CPU and I/O, or when a portable computer, component, peripheral, standalone storage unit, multi-node enclosure, system-form delivery or computing service is mixed into the reference product.	energy-star-computers-v8-2022; eu-regulation-2019-424
validation_reference_flow	Reference product	Fail when the reference flow is not UUID 3c41eabb-f2b2-4e96-b24d-3485673d505f with Mass 93a60a56-a3c8-11da-a746-0800200b9a66, Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66, and kg, or when detachable packaging or separate peripherals are included in reference mass.
validation_configuration	Required qualifiers	Fail when machine type/configuration, CPU/accelerators, memory, storage, built-in I/O, power supply, internal cooling, integrated devices, net mass per item, production test, power-test conditions or expected lifetime is missing.	itu-t-l1410-2024; energy-star-computers-v8-2022; eu-regulation-2019-424
validation_bom_upstream	BOM and component supply	Fail when any material component group lacks mass or count and an upstream dataset or disclosed proxy, when BOM revision and configuration are not linked, or when significant electronic components are removed only by a mass cut-off.	itu-t-l1410-2024
validation_assembly_test	Producer foreground	Fail when assembly, firmware configuration, functional test, burn-in when performed, rework, release yield, test electricity or producer waste is omitted or not assigned to the represented configuration.	itu-t-l1410-2024; energy-star-computers-v8-2022; eu-regulation-2019-424
validation_mass_balance	Production and end-of-life	Fail when the BOM-to-release or end-of-life mass balance cannot be reproduced, gross rejects and recovered outputs are netted, or an unexplained residual is omitted.	itu-t-l1410-2024
validation_use_energy	Use-stage electricity	Fail when use electricity relies only on PSU rating, TDP or nameplate values; when power and hours refer to different configurations or settings; or when operating modes, workload, voltage, test method and expected lifetime are not disclosed.	energy-star-computers-v8-2022; eu-regulation-617-2013; eu-regulation-2019-424
validation_cooling	Cooling	Fail when internal cooling energy is added outside measured device power, when external facility cooling is included without a declared boundary and causal allocation, or when cooling and device electricity are double counted.	itu-t-l1410-2024; eu-regulation-2019-424
validation_lifetime	Lifetime and maintenance	Fail when use-stage results lack an expected operating lifetime and evidence basis, when storage time is counted as operation, or when repair, refurbishment and second life are silently merged into the first-life boundary.	itu-t-l1410-2024
validation_allocation	Shared operations and recovered outputs	Fail when practical subdivision was skipped, shares do not sum to one, the allocation driver is unrelated to burden causation, economic allocation lacks price basis and sensitivity, or recycling credits are implicit.	itu-t-l1410-2024
validation_no_system_proxy	Downstream use	Fail any claim that a one-machine result represents a rack, cluster, data centre, multi-machine system, cloud or computing service without separately modelled quantities, infrastructure, networking, cooling and allocation.	itu-t-l1410-2024; eu-regulation-2019-424

10. Published Dataset Profile

Field	Value
dataset_role	Configuration-specific foreground producer-gate data package for one complete single-housing automatic data processing machine, with optional separately reported downstream modules
downstream_use	May be published as a secondary_dataset or background_dataset for equipment manufacturing and may support downstream process and lifecyclemodel projections when configuration, use, cooling, lifetime and end-of-life assumptions are compatible
allowed_use	Product footprinting, supply-chain inventory, procurement comparison within functionally comparable configurations, manufacturing improvement, and equipment-level life-cycle modelling with representative geography, technology and use scenario
excluded_use	Portable computers; components or peripherals; standalone storage; multi-node enclosures; system-form delivery; automatic substitution across servers, workstations and desktops; representing racks, clusters, data centres, cloud or computing services from one-machine results
required_metadata	PCR id and version; CPC context; machine type; manufacturer/model/configuration; chassis boundary; net mass and count; CPU/accelerator, memory, storage, I/O, power and cooling configuration; integrated devices; BOM revision and upstream coverage; assembly/test site, route and period; firmware and test profile; packaging; allocation; power modes, workload and test method; external cooling boundary; expected lifetime; maintenance; end-of-life; proxies and cut-offs
required_quality_disclosure	Primary-data share; BOM and upstream dataset coverage; geographic, temporal and technological representativeness; instrument calibration and uncertainty; production and test yield; mass-balance residuals; shared-facility allocation; power-profile coverage; cooling allocation; lifetime evidence; repair and end-of-life evidence; proxy limitations; shared legacy-alias integration blocker
update_trigger	Change in chassis or machine type, CPU or accelerator, memory, storage, built-in I/O, PSU or cooling architecture, integrated display or input, BOM or supplier route, assembly/test site, firmware or power management, workload, packaging, allocation, expected lifetime, maintenance, end-of-life, reference UUID or resolution of the shared alias conflict

11. Data Sources

Source id	Type	Reference	Used for
itu-t-l1410-2024	official_guidance	International Telecommunication Union, Recommendation ITU-T L.1410 (11/2024): Methodology for environmental life cycle assessments of information and communication technology goods, networks and services, https://handle.itu.int/11.1002/1000/16010 and official record https://www.itu.int/rec/T-REC-L.1410-202411-I/en (retrieved 2026-08-09)	ICT-goods BOM and part coverage, functional-unit and reference-flow context, life-cycle stages and unit processes, use and support activities, operating-lifetime disclosure, reuse/refurbishment boundary, end-of-life, allocation, data quality and reporting
energy-star-computers-v8-2022	official_guidance	U.S. Environmental Protection Agency, ENERGY STAR Program Requirements for Computers, Eligibility Criteria Version 8.0, Rev. July 2022, https://www.energystar.gov/sites/default/files/asset/document/ENERGY%20STAR%20Computers%20Version%208.0%20Final%20Specification%20Rev.%20July%202022.pdf (retrieved 2026-08-09)	Desktop, integrated desktop, small-scale server and workstation definitions; configuration and product-family differentiation; CPU, GPU, memory and storage declarations; active, idle, sleep and off power modes; reproducible testing
eu-regulation-617-2013	standard	European Commission, Commission Regulation (EU) No 617/2013 with regard to ecodesign requirements for computers and computer servers, consolidated official text, https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32013R0617 (retrieved 2026-08-09; used as technical definition and measurement evidence, not as a statement of current applicability in every market)	Stationary desktop, integrated desktop and workstation distinctions; CPU, memory, graphics and storage configuration; power modes, power measurement, PSU information and manufacturer disclosure
eu-regulation-2019-424	standard	European Commission, Commission Regulation (EU) 2019/424 laying down ecodesign requirements for servers and data storage products, consolidated official text, https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32019R0424 (retrieved 2026-08-09; used as technical definition and measurement evidence, not as a statement of current applicability in every market)	Server and multi-node boundary definitions; CPU, memory, storage, I/O, PSU, configuration-family, idle and active power, operating-condition and testing disclosure; external cooling relevance; repair, upgrade, data deletion, critical-component and end-of-life information