【英文标准名称】:StandardTestMethodforTotalMercuryinWater
【原文标准名称】:水中总贡含量的标准试验方法
【标准号】:ASTMD3223-2002(2007)e1
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:试验;含量测定;水
【英文主题词】:atomicabsorption;coldvaportechnique;mercury;totalmercury
【摘要】:Thepresenceofmercuryinindustrialdischarge,domesticdischarge,andpotablewaterisofconcerntothepublicbecauseofitstoxicity.Regulationsandstandardshavebeenestablishedthatrequirethemonitoringofmercuryinwater.Thistestmethodprovidesananalyticalproceduretomeasuretotalmercuryinwater.1.1Thistestmethodcoversthedeterminationoftotalmercuryinwaterintherangefrom0.5to10.0956;gHg/L(1).Thetestmethodisapplicabletofreshwaters,salinewaters,andsomeindustrialandsewageeffluents.Itistheuser''sresponsibilitytoensurethevalidityofthistestmethodforwatersofuntestedmatrices.1.1.1Theanalystshouldrecognizethattheprecisionandbiasofthisstandardmaybeaffectedbytheotherconstituentsinallwaters,astap,industrial,river,andwastewaters.Thecoldvaporatomicabsorptionmeasurementportionofthismethodisapplicabletotheanalysisofmaterialsotherthanwater(sediments,biologicalmaterials,tissues,etc.)if,andonlyif,aninitialprocedurefordigestingandoxidizingthesampleiscarriedout,ensuringthatthemercuryinthesampleisconvertedtothemercuricion,andisdissolvedinaqueousmedia(2,3).1.2Bothorganicandinorganicmercurycompoundsmaybeanalyzedbythisprocedureiftheyarefirstconvertedtomercuricions.Usingpotassiumpersulfateandpotassiumpermanganateasoxidants,andadigestiontemperatureof95176;C,approximately100%recoveryoforganomercurycompoundscanbeobtained(2,4).1.3Therangeofthetestmethodmaybechangedbyinstrumentorrecorderexpansionorboth,andbyusingalargervolumeofsample.1.4Amethodforthedisposalofmercury-containingwastesisalsopresented(AppendixX1)(5).Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see7.8and10.8.2.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:
【原文标准名称】:开放系统互连.传输服务定义
【标准号】:JISX5108-1986
【标准状态】:作废
【国别】:日本
【发布日期】:1986-05-01
【实施或试行日期】:1986-05-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:计算机网络;通信网;总线网;数据传输;开式系统互连;电信传输法
【英文主题词】:
【摘要】:
【中国标准分类号】:L70
【国际标准分类号】:
【页数】:
【正文语种】: