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1、BSISO20423:2025CarbonfootprintforseafoodProductcategoryrules(CFP-PCR)formacroalgaebsi.NationalforewordThisBritishStandardistheUKimplementationofISO20423:2025.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeW/-,MiscellaneousStandards.Alistoforganizationsrepresentedonthiscommitteecan
2、beobtainedonrequesttoitscommitteemanager.ContractualandlegalconsiderationsThispublicationhasbeenpreparedingoodfaith,howevernorepresentation,warranty,assuranceorundertaking(expressorimplied)isorwillbemade,andnoresponsibilityorliabilityisorwillbeacceptedbyBSIinrelationtotheadequacy,accuracy,completene
3、ssorreasonablenessofthispublication.Allandanysuchresponsibilityandliabilityisexpresslydisclaimedtothefullextentpermittedbythelaw.Thispublicationisprovidedasis,andistobeusedattherecipientsownrisk.Therecipientisadvisedtoconsiderseekingprofessionalguidancewithrespecttoitsuseofthispublication.Thispublic
4、ationisnotintendedtoconstituteacontract.Usersareresponsibleforitscorrectapplication.TheBritishStandardsInstitution2025PublishedbyBSIStandardsLimited2025ISBN9780539313772ICS67.120.30CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthority
5、oftheStandardsPolicyandStrategyCommitteeon30June2025.Amendments/corrigendaissuedsincepublicationDateTextaffectedBSISO20423:2025InternationalStandardISO20423Firstedition2025-06Carbonfootprintforseafood一Productcategoryrules(CFP-PCR)formacroalgaeEmpreintecarbonedesfruitsdemer-Regiesdedefinitiondescateg
6、oriesdeproduit(CFP-PCR)pourlesmacroalguesReferencenumberISO20423:2025(en)COPYRIGHTPROTECTEDDOCUMENTISO2025Allrightsreserved.Unlessotherwisespecified,orrequiredinthecontextofitsimplementation,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includi
7、ngphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO,smemberbodyinthecountryoftherequester.ISOcopyrightofficeCP401Ch.deBlandonnet8CH-1214Vernier,GenevaPhone:+41227490111Email:copyrightiso.orgWebsite:www.iso.orgPub
8、lishedinSwitzerlandContentsPageForewordvIntroductionvi1 Scope12 Normativereferences13 Termsanddefinitions13.1 Quantificationofthecarbonfootprintofaproduct13.2 Products,productsystemsandprocesses23.3 Dataanddataquality53.4 Greenhousegases53.5 Waste,storageandtransport54 Calculationandcommunicationreq
9、uirements65 Methodologicalrequirements65.1 General65.2 Functionalunitordeclaredunit65.3 Principlesofdataandmethodologicalreporting75.4 Systemboundaries75.4.1 General75.4.2 Thecut-offcriterion:Generalruleforwhatcanbeexcludedfromthecarbonfootprint85.4.3 Generalprocessesthatcanbeexcluded95.4.4 Systembo
10、undariesforwaste95.4.5 Useofrecycledmaterials95.4.6 Capitalinvestments95.4.7 Systemboundariesforfarming95.4.8 Systemboundariesforharvesting105.4.9 Systemboundariesforprocessing115.4.10 Systemboundariesfordistributiontodealers125.4.11 Systemboundariesforfinalconsumption.135.5 Datarequirements135.5.1
11、General135.5.2 Rulesfordatasampling145.5.3 Dataonelectricity145.5.4 Dataonfuel145.5.5 Geographicaldelimitation145.5.6 Timedelimitation145.5.7 Validationofdata145.5.8 Transportcalculationrules145.6 Allocation155.7 Impactassessment155.8 Interpretation155.9 Fossilandbiogeniccarbon165.10 Communicationof
12、carbonfootprintsformacroalgae165.10.1 General165.10.2 Detailsabouttheproducer16AnnexA(informative)Exampleofdatacollectioninthecalculationofthecarbonfootprintofmacroalgaeproducts17AnnexB(informative)Additionalinformationforfarmingnutrientsaccountingthroughelementalmassbalancesofmacroalgae18Annex C (i
13、nformative)Exampleofmassallocationforkelpco-productprocessing21Annex D (informative)ExampleofLCAdriedPorphyrayezoensisvalue-chainmodelling22Annex E (informative)ExampleofLCAgroundseaweedvalue-chainmodelling2425BibliographyForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederat
14、ionofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandn
15、on-governmentabinliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seeWWW.isoQrgdirectives).ISOdrawsattentiontothepossibilitythattheimplement
