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【英文标准名称】:Naturalgas-Determinationofmercury-Samplingofmercurybychemisorptiononiodine
【原文标准名称】:天然气.汞的测定.用碘化学吸附法对汞的采样
【标准号】:BSISO6978-1-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-12-17
【实施或试行日期】:2003-12-17
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:化学吸附;汞;碘;化学分析和试验;气体分析;含量测定;天然气;一般条件
【英文主题词】:Chemicalanalysisandtesting;Chemisorption;Determinationofcontent;Gasanalysis;Gastechnology;Generalconditions;Iodine;Materialstesting;Mercury;Naturalgas;Samplingmethods;Testing
【摘要】:ThispartofISO6978specifiesamethodforthedeterminationoftotalmercurycontentinnaturalgasusingasamplingmethodatpressuresupto40MPabychemisorptiononiodine-impregnatedsilicagel.Thissamplingmethodissuitableforthedeterminationofmercurycontentswithintherangeof0,1μg/mto5000μg/minnaturalgas.Thismethodisapplicabletosampledgasvolumescontaininglessthan20mghydrogensulfide(absolutecontent)andlessthanatotalliquidhydrocarboncondensateof10g/munderthesamplingconditions.Thecollectedmercuryisdeterminedbymeasuringtheabsorbanceorfluorescenceofmercuryvapourat253,7nm.NOTEISO6978-2givesasamplingmethodsuitableforthedeterminationofmercurycontentofpipelinenaturalgasbyamalgamationofmercuryongold/platinumalloythreadatatmosphericpressurefortherangeofmercuryfrom0,01μg/mto100μg/mandforsamplingathighpressure(upto8MPa)from0,001μg/mto1μg/m.
【中国标准分类号】:E24
【国际标准分类号】:75_060
【页数】:26P.;A4
【正文语种】:英语