水质 pH值测定（ISO 10523-1994）

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1、BRITISHSTANDARDBS6068-2.50:1995ISO10523:1994Waterquality—Part2:Physical,chemicalandbiochemicalmethods—Section2.50DeterminationofpHBS6068-2.50:1995CommitteesresponsibleforthisBritishStandardThepreparationofthisBritishStandardwasentrustedbyTechnicalCommitteeEPC/44,Waterquality,toSubco

2、mmitteeEPC/44/2,Physical,chemicalandbiochemicalmethods,uponwhichthefollowingbodieswererepresented:TheAssoicationoftheLaboratorySupplyIndustryBritishAgrochemicalsAssociationLtd.BritishCeramicResearchBritishGasplcBritishSoftDrinksAssociationLtd.ChemicalIndustriesAssociationConventiono

3、fScottishLocalAuthoritiesDepartmentoftheEnvironment(WaterDirectorate)DepartmentofTradeandIndustry(LaboratoryoftheGovernmentChemist)GAMBICA(BEAMA)Ltd.IndustrialWaterSocietyInstitutionofWaterandEnvironmentalManagementNationalRiversAuthorityRoyalSocietyofChemistrySoapandDetergentIndust

4、ryAssociationSocietyofChemicalIndustrySwimmingPoolandAlliedTradesAssociationLtd.WaterCompanies’AssociationWaterResearchCentreWaterServicesAssociationofEnglandandWalesThisBritishStandard,havingbeenpreparedunderthedirectionoftheHealthandEnvironmentSectorBoard,waspublishedundertheautho

5、rityoftheStandardsBoardandcomesintoeffectonAmendmentsissuedsincepublication15August1995Amd.No.DateComments©BSI06-1999ThefollowingBSIreferencesrelatetotheworkonthisstandard:CommitteereferenceEPC/44Draftforcomment92/54728DCISBN0580244652BS6068-2.50:1995ContentsPageCommitteesresponsibl

6、eInsidefrontcoverNationalforewordiiIntroduction11Scope12Normativereference13Definition14Reagents15Apparatus26Samplingandsamples27Procedure28CalculationofpHforvarioustemperatures39Checkingoftheaccuracyandmaintenanceoftheequipment310Expressionofresults411Standarddeviation412Testreport

7、4AnnexA(informative)CalculationofthepH-value6AnnexB(informative)PrimarypHstandardreferencesolutions7AnnexC(informative)Lowbuffercapacitystandardsolutions7AnnexD(informative)Syntheticrainwater8AnnexE(informative)Bibliography8Figure1—Graphictemperaturecorrection5Table1—Untitled3TableA

8、.1—Variationofslope