Day-tank plunger-pressed annealed soda-lime glass bowls · 7. Allocation and Co-product Handling

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_framework	all datasets	Apply this method only within an explicitly justified attributional study where allocation is required. Establish the study decision context and functional outputs; it is not a free choice between physical/economic shares or substitution. Industrial glass descriptions do not supply LCA allocation authority.	ilcd-attributional-2010
allocation_subdivide	each exchange	First collect dedicated unit/campaign/service records and subdivide physically distinguishable operations. Use virtual subdivision to assign every exclusive ingredient, part, meter or service to its actual function/cohort. Rejects, failed/idle/cleanup and internal cullet retain their actual burdens; internal recycling is not a new co-function or free input.	ilcd-attributional-2010
allocation_causality	remaining shared exchanges	For each remaining exchange identify and substantiate the determining physical causal relationship: how a change in each actual co-function changes that exchange. Embodied material, day-tank heat/hold, press-cycle service, glazer/lehr exposure, storage area/volume-time and transport load/distance need their own measured causal evidence, not one universal mass fraction or fixed dwell time. Preserve full gross mass/stock movements independently of burden partition.	ilcd-attributional-2010
allocation_residual	genuinely residual common process	Only after documenting why dedicated/virtual subdivision and determining physical causality cannot resolve a genuinely remaining common-process burden, use contemporaneous market values for actual co-functions in their real purity, bulk/quantity, packaging and thermal state at the same common-process exit gate. Adjust downstream conditioning/packing/transport out of an observed later price; retain period, currency, price derivation, uncertainty and sensitivity. Never copy a catalogue retail price, fixed fraction or industrial source mass-allocation statement.	ilcd-attributional-2010
allocation_services_returns	service; packaging	Original-cohort service increments use that original Q and observed horizon, separately from already assigned manufacturing burden. Carried FG vectors are continuity records, not a new manufacturing purchase or burden to unrelated current output. Packaging physical purchase/included/return/dispatch/waste legs remain complete and mutually exclusive; only real service burdens are attributed. Internal reuse, waste sales and water/heat return never automatically earn substitution credit or make a new coproduct.	ilcd-attributional-2010
allocation_no_repair_credit	failed and reworked production	First-release failures and destructive samples carry actual burdens into the served manufacturing cohort. Later return/reinspection creates no new Q. Remelting a genuinely returned bowl must transfer its original attributable history once into the actual receiving cohort with real incremental processing; it cannot simultaneously be an unchanged repair, zero-burden cullet and new first-release output. Any true additional saleable function needs explicit boundary and allocation review.	ilcd-attributional-2010
asset_manufacture_conservation	existing capital/reusable manufacture attribution	Within the applicable allocation decision context, original manufacture burden attributed across uses of actual capital equipment or reusable articles already included in foreground production, packaging or observed services uses one persistent same-asset ledger across all crops, products, cohorts, manufacturing/postrelease services, owners and observation periods. D is its supported whole installed service: all realized historical service plus supported remaining service in the same units as actual beneficiary use u; D must be finite and positive. Period capacity, remaining-only capacity, the physical asset/article mass alone, or current-period product Q alone is not D; supported whole-service throughput in mass units may be used when it demonstrates the causal service and matches u. This does not amortize the manufactured reference product over downstream life or change its declared reference gate/Q. The fractions u/D and all previously assigned manufacture shares together must never exceed 1. Changes of window, custody, provider or repair never restart the original manufacture balance. Replacements have distinct identities and only their real new manufacture vectors; actual repair and treatment increments remain separately accounted. Revised capacity evidence requires transparent reconciliation of prior shares and sensitivity, not a fresh ledger. Keep full physical mass and stock movements independent of burden shares. Unknown D, prior shares or beneficiary coverage requires review and no final manufacture-attributed amount; no assumed lifetime, utilization, zero or arbitrary division is permitted. For each existing collection protocol that attributes manufacture of included production, packaging or observed-service assets across uses in this route (excluding amortization of the manufactured reference product itself), additionally retain a durable asset identity, its measured full physical mass and acquisition/installation/retirement stock history, original manufacture burden vector, all historical and current beneficiaries, matched-unit service readings, the evidenced whole installed-service denominator D, supported remaining-service basis and uncertainty, prior assigned shares and remaining original manufacture balance. Carry the ledger across reporting windows and custody/provider changes. Collect actual repair, replacement, recovery and treatment separately; these records do not normalize physical movements or create an additional asset purchase. These are added fields and conservation obligations for the existing applicable protocols, not a new assumed capital inventory.

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

For each existing collection protocol that attributes manufacture of included production, packaging or observed-service assets across uses in this route (excluding amortization of the manufactured reference product itself), additionally retain a durable asset identity, its measured full physical mass and acquisition/installation/retirement stock history, original manufacture burden vector, all historical and current beneficiaries, matched-unit service readings, the evidenced whole installed-service denominator D, supported remaining-service basis and uncertainty, prior assigned shares and remaining original manufacture balance. Carry the ledger across reporting windows and custody/provider changes. Collect actual repair, replacement, recovery and treatment separately; these records do not normalize physical movements or create an additional asset purchase. These are added fields and conservation obligations for the existing applicable protocols, not a new assumed capital inventory.

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_material	manufacture	raw material and whole preparations	weighing and supplier records	lot; whole supplied quantity; native unit; complete composition and assay; moisture and hydrate state; actual recipe; receiving/consumption/stock basis; supplier route geography; included packaging and upstream burden; actual loss and internal transfer	Collect undivided calibrated weights and supplier/preparation records for each actual ingredient. Separate whole preparations from constituents and raw consumption from receipts. Convert and attribute through convert_raw and attribute_exchange; aggregation references only the sole normalize_exchange result per 1 kg reference flow. No collection-time division.	row native unit; measured constituent kg	each delivery and batch	complete declared day/night campaigns with failures	receiving through manufacture with matched upstream boundary	per 1 kg reference flow	scale calibration; invoices; assays; recipe and moisture analysis
cp_energy	manufacture	electricity fuel oxygen and freight	meters and delivery-leg records	meter identifier; start/end cumulative readings; true rate interval if used; source unit; gas normal/operating state; actual gas composition and purity; independent density; LHV and thermal basis; phase/campaign; compressor inclusion; gross transported kg; distance km; actual vehicle; provider inclusion and empty legs	Retain undivided meter differences/true integrated rates and actual delivery legs through melt/hold/preheat/press/glazer/lehr/treatment. Independently establish carrier mass and thermal energy without double purchase. Electricity kWh becomes MJ once; real freight kg*km uses actual gross load/distance. Use convert_raw then attribute_exchange then the sole normalize_exchange result per 1 kg reference flow.	MJ; gas kg; oxygen m3; kg*km; original readings	each phase and meter interval	full day/night period including zero-output idle and startup	actual manufacturing utility and delivery interfaces	per 1 kg reference flow	meter calibration; gas assay; state/density evidence; heat contract; manifests and routes
cp_stock	manufacture	raw WIP cullet capital and non-WIP stores	physical stock and exchange-vector history	opening/closing raw batch melt forming/lehr WIP internal cullet; each stock physical quantity and state; each inherited exchange vector; new/installed/removed/reused furnace press mould lining filter and repair parts; actual campaign service; fluid charge; prior consumption correction; waste destination; cohort transfer	Measure physical quantities and inherited vectors independently. Identify actual asset service and remaining embodied burden from campaign/use history, never a fixed lifetime. Already consumption-corrected raw data is not corrected twice. Newly first-released FG is outside manufacturing unassigned B_close. Keep raw records undivided; attribute_exchange forms exchange totals before the sole normalize_exchange result per 1 kg reference flow.	each stock native physical unit; exchange-specific burden units	every campaign boundary and real installation/removal	current complete period and inherited prior history	manufacturing stocks and actual service interface	per 1 kg reference flow	physical counts/weighing; asset/campaign log; original vectors; replacement evidence
cp_species	manufacture	gross species water phases wastes and returns	independent material balance and speciation	gas inlet/outlet volumes or true rates; actual wet/dry state; O2 N2 Ar CO2 H2O and actual pollutant species; fuel/mineral/ambient carbon; independent density and composition; species-specific concentration basis; free/carrier/structural/reaction water evidence; product/WIP retained constituents; captured dust; each waste wet mass and receiver; real external water return temperature enthalpy; detection limits uncertainty	Collect original undivided physical observations and independent molecular/element/phase tests at matched control surfaces. Convert true rates only; cumulative volume is not multiplied by time. Full wet mass and elements do not identify unknown species or reaction water. Apply physical_gates before burden attribution; q_j is only the sole normalize_exchange result per 1 kg reference flow.	kg by species; original m3/rate and state; measured enthalpy	each campaign and representative independently measured outlet	same complete manufacture period and stock boundaries	consistent manufacturing physical control volumes	per 1 kg reference flow	sampling/speciation reports; independent assays; calibration; detection and uncertainty; receiver records
cp_release	manufacture	first_release	net weighing and quality release register	unique release id/time; monolithic bowl configuration; actual composition and whole recipe; complete day-tank/press/fire-finish/anneal route; dimensional surface residual-stress acceptance; relevant food-contact/intended-use tests; calibrated net bare lot mass; tare; measured moisture/state; destructive pre-release sample and reject loss; closing FG membership; original cohort Q	Weigh actual bare accepted bowls on calibrated scales after required manufacturing tests at declared condition, excluding removable packages/labels and contamination. Q is uniquely first-released kg, not catalogue535g times count or shipment. Raw release records remain undivided; define_q produces Q and first_release represents1kg reference flow.	kg; actual drawing/test units	each traceable first-release lot	selected original first-release cohort	after actual manufacturing tests and anneal/cool	per 1 kg reference flow	calibration; unique lot register; drawing; actual acceptance/test records; tare and condition
cp_service	service	FG movements and actual incremental services	original-cohort physical stock and meter ledger	original cohort and original Q; observed horizon; opening/closing FG physical quantity and each vector; first-release receipt; G gross dispatch; R actual returned quantity/state; original delivery D and reversal D_rev; separate return sent; breakage; actual material/water additions/removals; rework and remelt destination; raw service energy/water/freight; old-FG history; unobserved future interval	Weigh actual FG/returns and retained moisture/material state; link original dispatch/reversal and cohort without assuming returned mass equals delivery mass. Meter actual service increments over the observed horizon and retain original manufacturing vector as continuity only. physical_gates reconciles gross stocks; attribute_exchange assigns only actual increments to the original cohort. Use its original Q in the sole normalize_exchange result per 1 kg reference flow, separately from unrelated new manufacture.	each exchange native unit; kg physical movements	each actual movement and matched service meter interval	declared original-cohort service horizon and inherited history	post-release FG and service control volume	per 1 kg reference flow	original release/dispatch/return records; state weighing; incremental work records; meters; history vectors
cp_packaging	service	each separate packaging article and movement leg	gross physical article balance and burden handover	one article/material identity; whole composition; actual water content; empty/WIP-attached/FG-attached/reusable opening and closing quantities; new purchase; supplier-included physical arrival and burden inclusion; external return received; with G gross dispatch; standalone external return sent; waste; internal reuse; actual old/new repair parts and moisture changes; each inherited exchange vector; original served cohort Q	Collect full undivided gross quantities for every mutually exclusive stock/leg, each real article weight and moisture basis. Do not reduce physical quantities by economic shares or charge included supply twice. packaging_balance closes each article independently; only actual service/purchased burden is attributed. Movement-card q_j references the same one normalization of full gross movement to original Q and remains physical-ledger-only with no coproduct/credit.	kg per actual wet article; native counts with measured configuration mass	each receipt stock boundary dispatch return and waste event	same original served cohort and complete observed horizon	all real incoming/outgoing packaging interfaces	per 1 kg reference flow	article specification and weighing; moisture; mutually exclusive stock/movement records; burden inclusion; actual repair documents

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
convert_raw	all inventory rows	Convert original readings to each row native unit/state before attribution. Electricity MJ = kWh * 3.6. Native freight kg*km = actual transported kg * km; tonne-km multiplies by1000 only if actually used as source unit. Integrate only genuine rates over time; meter differences/already integrated m3 are amounts. Substance-specific independent density and actual gas normal/operating state bridge volume/mass; no water-density substitution or native secondary-factor density inference. Actual fuel carrier mass and LHV heat are parallel accounts of one purchase.	raw readings; original units; measured density and gas state; actual LHV; load and distance	converted raw totals	jrc-glass-bref-2013
define_q	first_release	Q = sum of calibrated net bare kg of unique newly first-released bowls of the selected cohort after actual required manufacturing tests and declared anneal/cool state. Exclude packages/labels and pre-release rejects/destructive samples; retain all associated burdens. First-released closing FG is already in Q. Shipment, return, reinspection and repair do not create Q.	cp_release; unique release register; net bare mass; actual quality tests	Q in kg	mosser-pressed-glass-process; larochere-perigord-bowl; ilcd-attributional-2010
attribute_exchange	all inventory rows	For manufacturing exchange j form A_j = B_open_j + converted_period_j + B_external_transfer_in_j - B_close_j - B_true_transfer_out_j using the same exchange native units, then apply allocation_subdivide, allocation_causality and only genuine allocation_residual. B_open/B_close contain unassigned raw/WIP and actual unconsumed non-WIP charge/service vectors, never newly first-released FG or already assigned product burden. No deduction of unvalued rejects/wastes or serviceable closing FG. Each history vector is exchange-specific, not stock kg replacing every burden. Internal material/heat transfers cancel. Service A_j contains only true increments assigned to the original served cohort and original Q; original FG manufacture is continuity, not a second load. For physical movement cards A_j is the complete measured gross leg, with no economic shrinking; these ledger-only quantities receive no provider purchase/coproduct credit.	converted raw totals; cp_stock; inherited exchange vectors; original cohort and return links; allocation evidence; physical ledger classification	A_j in each row native unit	ilcd-attributional-2010
normalize_exchange	all inventory rows	q_j = A_j / Q for Q > 0, once after convert_raw and attribute_exchange, per 1 kg reference flow of that same original cohort. For Q = 0 retain all raw A_j and burdens with no unit result. Cards and protocol aggregation reference this same computed q_j and never divide again. first_release represents1kg reference flow; service results retain original Q and observed horizon.	A_j; Q; convert_raw; attribute_exchange; cp_release	q_j per 1 kg reference flow	ilcd-attributional-2010
physical_gates	all inventory rows	Manufacturing material gate: opening raw/WIP/non-WIP physical charges + actual external materials + measured gross atmospheric gas species = corresponding closing physical stocks + Q + each external waste + each measured gas/liquid/solid outlet + actual external Product water return. Electric energy and transport service do not become invented material mass; actual fuel/O2/water carriers do. New closing FG is not added to manufacturing Q. FG service gate: opening FG + first-Q internal receipt + real external returned FG + true material/water uptake = closing FG + gross dispatch G + standalone external return + breakage/removed material + measured physical losses. Use matched wet/phase composition and independently observed elements/species; each stock retains its own vector. Consolidation cancels first-Q receipt/internal cullet/transfers. Packaging is independently reconciled by packaging_balance and never enters bare Q.	cp_material; cp_stock; cp_species; cp_release; cp_service; independent element and phase observations	separate and consolidated physical gates with uncertainties	jrc-glass-bref-2013; ilcd-attributional-2010
packaging_balance	all inventory rows	For EACH packaging article separately: opening empty + opening WIP-attached + opening FG-attached + opening reusable + new purchased + supplier-included physical arrival + external return received = corresponding four closing stocks + with gross physical dispatch + stand-alone external return sent + waste. All categories are mutually exclusive and each article receipt occurs once. Add only actual separately measured water uptake/loss and real repair-part additions/removals when they occur; keep whole article and constituent accounts distinct. Internal reuse cancels. Full physical masses are not scaled by burden allocation and never add Q or automatic credit. Attribute actual service/purchase burdens and inherited vectors separately.	cp_packaging; article specifications; physical stocks and movement legs; measured moisture; actual repair evidence; inherited vectors	each article physical balance and separate burden reconciliation	jrc-glass-bref-2013; ilcd-attributional-2010
asset_manufacture_share	existing capital/reusable manufacture attribution	For each included original asset manufacture vector B, f_current = u_current / D only after the persistent ledger verifies the supported whole installed-service denominator, all beneficiaries and prior assigned shares. Attribute f_current * B once to the actual beneficiary before the existing single reference normalization. Check prior_shares + all current/new beneficiary shares <= 1; carry the remaining original balance. Capacity revisions reconcile the historical ledger. Full physical asset/packaging mass and actual gross stocks/returns never receive f_current. Unknown D or history leaves the final attributed result unavailable, without suppressing actual repair/replacement/service burdens.	asset_id; original_B; u_current; D; historical_beneficiaries; prior_shares; capacity_evidence	conserved attributed manufacture vector

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
dq_identity	all inventory rows	Every adopted restriction and native reference unit is retained in each full card description; actual provider form/grade/geography and endpoint evidence remain required. A UUID is neither a quantity nor food-contact/thermal performance approval.	Native full record; actual supplier and product evidence
dq_campaign	all inventories	Raw records cover complete day/night campaigns, failures, startup/shutdown, hot hold, idle, cleanup and rework. Source temperatures/durations/recycled shares/emission factors and catalogue mass are not site defaults.	Original meters; campaign calendar; failure log; coverage and calibration
dq_history	all stocks and original cohorts	Retain physical quantity and each historical exchange vector for raw/WIP/FG/internal cullet, assets, fluids and each packaging article. Service increments and returned-product material/water changes keep original cohort Q; no unrelated current-Q transfer or second consumption correction.	Opening/closing measurements; history vectors; original dispatch/reversal; actual repair records
dq_species	physical gates	Independent mass/element, molecular identity and water/gas/solid phase evidence includes uncertainty and detection limits. Neither a PM/VOC/NOx/COD total nor one closure residual proves a named chemical or reaction water.	Speciation assays; wet/dry state; independent density; detection and balance residuals
dq_gaps	dataset completion	Distinguish real core terminal/route/causality holds from ordinary auxiliary UUID/provider/future-quantity gaps. Unknown, absent, measured zero and below detection are distinct. Preserve evidence mismatches and contradictory source context rather than reporting a complete factory dataset or scientific/translation approval.	Explicit gap/uncertainty register; source applicability assessment; actual dataset preflight

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_terminal	reference product	Verify the entire declared natural-gas day-tank/plunger/fire-finish/anneal route and real bare-bowl drawing, composition, residual stress, dimensions, surface defects and relevant intended-use/food-contact acceptance before completing a dataset. The generic finished-glassware UUID and primary catalogue do not establish one factory recipe, heat resistance, certification, lifetime or material equivalence by kg.	jrc-glass-bref-2013; mosser-pressed-glass-process; larochere-perigord-bowl; larochere-mineral-glass; larochere-pressed-glass-faq
validate_identity	all inventory rows	For every bound exchange assess all native basenames, synonyms/comments, CAS, grade, route, form/particle structure, geography, receiving medium, type and every property; resolve the exact referenced property/group/unit chain. Preserve all actual adoption conditions inside that row description. Distinguish isolated taxonomy defects from material contradiction; incompatible CAS, route, particle form or emission compartment cannot be waived by name/classification alone.	jrc-glass-bref-2013
validate_quantity	all inventory rows	Keep raw records undivided; convert original units/state and genuine rates, reconcile per-exchange histories and actual causal attribution, then execute the single normalize_exchange calculation once. Cards and aggregation reference its result, not another division. Use each row native extensive property/unit: electricity MJ, oxygen m3, freight kg*km and mass rows kg; never apply Mass/kg to all inventory rows. Q=0 retains real burdens and has no unit result.	ilcd-attributional-2010; jrc-glass-bref-2013
validate_physical	all physical gates	Close manufacturing subgates, the FG service gate and their consolidation on the same physical wet/phase basis, with independent element/species/phase observations and uncertainty. Manufacturing first-Q and service receipt cancel internally; first-released closing FG does not create a second manufacturing quantity or burden deduction. Keep actual gross air species, carrier/reaction water, captured dust, stored charges and product/packaging moisture changes. One conservation residual cannot prove two unknowns or a reaction-water/species identity.	jrc-glass-bref-2013; ilcd-attributional-2010
validate_packaging_history	each article and cohort	Verify every empty/WIP-attached/FG-attached/reusable opening and closing inventory, new purchase, supplier-included arrival, external return received, gross dispatch, separate return sent and waste by actual article. Do not reduce gross quantities by allocation shares or count internal reuse as purchase. Return mass/state, original delivery reversal, true repair parts and water changes require their own evidence; no nominal equal-weight or life assumption.	jrc-glass-bref-2013; ilcd-attributional-2010
validate_completeness	dataset completion	Keep unknown/absent/zero/below-detection and source applicability gaps explicit. Missing real core terminal, route or necessary unresolved causal relationship prevents a completed data package. Ordinary auxiliary/provider/future activity-data gaps are not fabricated defaults. Technical schema/projection/measurement checks establish neither scientific/translation approval nor classification mapping or publication. Add all genuinely used unlisted atomic exchanges before claiming physical coverage.	jrc-glass-bref-2013; ilcd-attributional-2010
validate_asset_manufacture_conservation	existing capital/reusable manufacture attribution	For every included capital/reusable manufacture attribution verify same-asset continuity, whole installed service in matched units, all historical/current beneficiaries, prior assigned manufacture shares and cumulative share <= 1. Reject a reset by period, cohort, provider, owner or repair. Check distinct real replacement and incremental repair/treatment vectors separately and preserve gross physical mass. A missing denominator, unexplained previous allocation or incomplete beneficiary ledger requires explicit review and an unavailable final attributed amount; structural inspection cannot claim empirical completeness.

10. Published Dataset Profile

Field	Value
dataset_role	secondary_dataset; background_dataset
downstream_use	Qualified actual raw-to-first-release soda-lime bowl manufacturing input and separately disclosed original-cohort supply-service increments
allowed_use	Only matching composition forming/thermal route bare product and provider boundary; actual same-configuration measured conversions with quality disclosure
excluded_use	All boundary_scope exclusions; mass-based consumer-service equivalence; food-contact/oven/microwave certification; first-Q to net-delivery substitution; purchased-finished repacking as manufacture; automatic recycling/heat/substitution credit
required_metadata	clear soda-lime bowl drawing and monolithic open-mouth geometry; whole supplied raw ingredients and actual fining/decolouring chemistry; day-tank natural-gas melting and complete nightly cycle; plunger/mould configuration and actual preheat; actual fire finishing and anneal/cool/inspection specification; absence of applied decoration/coating and separate bonded parts; food-contact and intended-use evidence without generic approval; unique first-release cohort and measured net bare Q; raw/melt/annealing WIP/internal-cullet history; physical assets and non-WIP fluid quantities with per-exchange history; failure/start-stop/idle/cleanup/rework coverage; actual fuel/air/species/water-phase composition and measured state; actual grid voltage/geography/provider boundary; original FG cohort and delivery reversal with real incremental rework; each packaging article composition/moisture and mutually exclusive gross stocks/movements; actual water-return thermal contract; attributional subdivision/exchange-specific causality/residual common-gate price evidence
required_quality_disclosure	Original undivided activity data; conversion state; all real failures and finite coverage; separate gross physical/element/species/phase balances; historical stock vectors and original cohorts; complete packaging legs; native provider restrictions; true holds and ordinary gaps
update_trigger	Changed glass composition/colour/core forming or heat treatment; applied coating/part; native supplier/state/geography/unit; actual stock/return cohort; product acceptance; real multifunctionality or allocation basis

11. Data Sources

Source id	Type	Reference	Used for
jrc-glass-bref-2013	official_guidance	European Commission JRC. Best Available Techniques Reference Document for the Manufacture of Glass. EUR25786 EN,2013, DOI10.2791/69502, §§2.1–2.3.6,2.7,3.6 and Figures2.8–2.9/3.8; Tables2.1/3.30–3.32. https://bureau-industrial-transformation.jrc.ec.europa.eu/sites/default/files/2019-11/GLS_Adopted_03_2012_0.pdf	Complete publisher primary report supports raw-batch/melting/day-tank and domestic plunger pressing/fire-finishing/annealing route, utilities, losses and measurement needs. Adjacent spinning, blowing, tempering, borosilicate/lead-crystal acid polishing and glass-fibre routes are countercontexts. Emissions as NO2/SO2, melted-glass denominators, conventional/electric furnace footnotes and sector/case energy fractions are not actual species, amounts, allocation shares or first-Q defaults.
mosser-pressed-glass-process	handbook	Mosser Glass. Our Process, publisher technical page, snapshot2026-10-20. https://www.mosserglass.com/pages/our-process	Primary manufacturer full six-stage description: natural-gas day tanks/pots, soda ash/silica sand, cast-iron mould preheat, gather/press/cool, actual glazer, anneal, inspect and pack or stockroom. This PCR selects the day-tank/clear-bowl route; source equipment counts, temperatures, timings and “most pieces” fire finishing are not mandatory factory values or proof of the independent terminal SKU.
larochere-perigord-bowl	handbook	La Rochere. Set of6 PERIGORD Bowls,623301P6, publisher product page, snapshot2026-10-20. https://larochere.com/en/collections/the-cafe/products/lot-de-6-bols-perigord?no-redirect=true	Real transparent pressed-glass bowl terminal and adjacent dimensional/capacity/mass/care labels including avoidance of excessive thermal shock. No catalogue535g,50cl, dimensions, dishwasher or origin statement becomes a measured site value or this method certification. Page does not establish that SKU furnace, fuel, anneal, recipe or monolithic forming details.
larochere-mineral-glass	handbook	La Rochere.551 ans, publisher manufacturing heritage page, snapshot2026-10-20. https://larochere.com/pages/550-ans?no-redirect=true	Primary sand/soda/lime mineral-family statement and explicit mechanically pressed versus mouth-blown distinction. Historical wood firing, marketing durability/health/recyclability and general lineage do not prove a current furnace, recipe, lifetime, certification or product-specific test.
larochere-pressed-glass-faq	handbook	La Rochere.Your questions, publisher manufacturing FAQ, snapshot2026-10-20. https://larochere.com/en/pages/vos-questions?no-redirect=true	Primary mechanical pressed-glass mould-seam and reburning description with adjacent product/supply context; supports distinguishing formed relief from applied decoration. Does not prove the same SKU/factory/order as Mosser or require a specific fuel/temperature or anneal cycle.
ilcd-attributional-2010	official_guidance	European Commission JRC. ILCD Handbook General guide for LCA Detailed guidance, first edition March2010, §§7.9.2–7.9.3, printedpp255–268. https://eplca.jrc.ec.europa.eu/uploads/ILCD-Handbook-General-guide-for-LCA-DETAILED-GUIDANCE-12March2010-ISBN-fin-v1.0-EN.pdf	Attributional multifunctionality where allocation is justified: dedicated/virtual subdivision, then exchange-specific determining physical causality, and only true residual common-process actual-state contemporaneous gate market value. Supports explicit function/cohort service assignment and separation of material embodiment and shared service; not an industrial process/recipe factor, fixed ratio or automatic substitution credit. Adjacent multifunctional-product QFD examples are not this process rule.