BS ISO 23168-2019Paints and varnishes 一 Determination of water content 一 Gas - chromatographic method

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1、BRITISHSTANDARDBSISO23168:2019NationalforewordThisBritishStandardistheUKimplementationofISO23168:2019.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeSTI/10,Testmethodsforpaints.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoi

2、tssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.©TheBritishStandardsInstitution2019PublishedbyBSIStandardsLimited2019ISBN9780539011401ICS87.040CompliancewithaBritishStandardcannotconfe

3、rimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30April2019.Amendments/corrigendaissuedsincepublicationDateTextafectedBSISO23168:2019ISO23168:2019(E)COPYRIGHTPROTECTEDDOCUMENT©ISO2019,Publishedin

4、SwitzerlandAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.Permissioncanberequested

5、fromeitherISOattheaddressbeloworISO’smemberbodyinthecountryoftherequester.ISOcopyrightofficeCh.deBlandonnet8•CP401CH-1214Vernier,Geneva,SwitzerlandTel.+41227490111Fax+41227490947copyright@iso.orgwww.iso.orgii©ISO2019–AllrightsreservedBSISO23168:2019ISO23168:2019Conte

6、ntsPageForeword.....iv1Scope.....12Normativereferences....13Termsanddefinitions....14Principle.....15Apparatus.....25.1Gaschromatograph....25.2Sampleinjectionsystem....25.3Oven.....25.4Detector....25.5Capilarycolumn....25.6Injectionsyringe....25.7Dataprocessing....25

7、.8Samplevials....25.9Gasfilter....25.10Carriergas....35.11Analyticalbalance....35.12Bottle-topdispenser.....36Reagentsandmaterials....36.1Internalstandard(anhydrous)...36.2Dilutionsolvent....36.3Water.....36.4Molecularsieve....37Sampling......38Procedure.....48.1Gas-

8、chromatographicconditions...48.2Watercontentofthedilutionsolvent...48.3Calibration....48.4Samplepreparation....48.5Quantitativedete