bsi. ...making excellence a habit Inspiring trust foramore resilient world 需要更多标准请联系 wechat: wpwyq310 BSIS021863:2020 BSlStandardsPublication Water quality - Determination of alkylmercury compoundsin waterMethod usinggas chromatography-mass spectrometry (GC-MS) after phenylation and solvent extraction bsi. BSISO21863:2020 BRITISHSTANDARD Nationalforeword ThisBritishStandardistheUKimplementationofIS021863:2020. TheUKparticipationinitspreparationwasentrustedtoTechnical CommitteeEH/3/2,Physicalchemicalandbiochemicalmethods. Alistoforganizationsrepresentedonthiscommitteecanbeobtainedon requesttoits committeemanager. This publication does notpurportto includeall thenecessaryprovisions ofacontract.Usersareresponsibleforitscorrectapplication. TheBritishStandardsInstitution2020 PublishedbyBSIStandardsLimited2020 ISBN9780580986581 ICS13.060.50 CompliancewithaBritishStandardcannotconferimmunityfrom legalobligations. This British Standard waspublished under theauthority ofthe StandardsPolicyandStrategyCommitteeon30November2020 Amendments/corrigendaissuedsincepublication Date Textaffected 3