ISO 11262-2003 土壤质量.氰化物的测定

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【英文标准名称】:Soilquality-Determinationofcyanide
【原文标准名称】:土壤质量.氰化物的测定
【标准号】:ISO11262-2003
【标准状态】:作废
【国别】:国际
【发布日期】:2003-09
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC190
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;光度测量法;质量;试验;土壤组分;氰化氢;土壤普查;滴定法;氰化物;定义;土壤
【英文主题词】:Compositionoftheground;Cyanides;Definitions;Determination;Hydrogencyanide;Photometry;Quality;Soilsurveys;Soils;Testing;Tests;Titrimetry
【摘要】:ThisInternationalStandardisapplicabletoas-receivedsoilsamples,andspecifiestwoquantificationmethodsforthedeterminationofeasilyreleasedandcomplexcyanides.Itisnotalwaysnecessarytodetermineeasilyreleasedcyanidepriortothemeasurementofcomplexcyanide.Inthisinstance,thefirstpartofthedistillationprocessisomittedsothatonlythetotalcyanideisdetermined.Themethodsareapplicabletosoilcontainingbetween0,5mg/kgand10000mg/kgoftotalcyanide.Themethodsandcorrespondingrangesofcyanideinthealiquottakenfromtherelevantabsorptionsolutionareasfollows:a)photometricmethod:Thismethodisapplicableforcyanidecontentsof0,5mg/kgto50mg/kgintheoriginalfield-moistsample.b)titrimetricmethodusinganindicator:Thismethodisapplicableforcyanidecontentsofabove50mg/kgintheoriginalfield-moistsample.
【中国标准分类号】:B11
【国际标准分类号】:13_080_10
【页数】:19P.;A4
【正文语种】:英语