【英文标准名称】:StandardTestMethodforBoronInWater
【原文标准名称】:水中硼的标准试验方法
【标准号】:ASTMD3082-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D19.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:硼;试验;含量测定;水
【英文主题词】:boron;colorimetric-extraction;curcumin;spectrophotometric;water
【摘要】:Becauseboroncanbebothessentialanddeleterioustoplantgrowth,andbecauseingestionoflargeamountscanaffectthecentralnervoussysteminhumans,amethodisrequiredtodetermineitsconcentrationinpotable,natural,andwastewaters.Thistestmethodprovidesameansofdeterminingtheboronconcentrationofthesewaters.TheholdingtimeforthesamplesmaybecalculatedinaccordancewithPracticeD4841.Boricacidisusedforchemicalshimcontrolofneutronfluxinanuclearreactor.Thistestmethodservestodetermineiftheboronconcentrationiswithinacceptablelimits.1.1Thistestmethodcoversthedeterminationofboroninwaterandwastewatersbythecurcumincolorimetric-extractionmethodinconcentrationsbetween0.1and1.0mg/L.Therangecanbeextendedbydilutionofthesample.1.2Onlydissolvedboronisdetermined.Thistestmethodrequiresthatthewatersamplebefilteredthrougha0.45-956;mmembranefilterbeforeanalysis.1.3Thistestmethodisacolorimetricmethodthatisverysensitivetolowconcentrationsofboroninwaterandrequiresarelativelysmallsamplevolumeforanalysis.1.4Precisionandbiaswereobtainedonnaturalandwastewaters.Itistheuser'sresponsibilitytoensurethevalidityofthistestmethodforwatersofuntestedmatrices.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:6P.;A4
【正文语种】: