ASTM D1687-2002(2007)e1 水中铬含量的标准试验方法

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【英文标准名称】:StandardTestMethodsforChromiuminWater
【原文标准名称】:水中铬含量的标准试验方法
【标准号】:ASTMD1687-2002(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;水
【英文主题词】:atomicabsorption;chromium;graphitefurnace;hexavalentchromium;photometric;water
【摘要】:Hexavalentchromiumsaltsareusedextensivelyinmetalfinishingandplatingapplications,inanodizingaluminum,andinthemanufactureofpaints,dyes,explosives,andceramics.Trivalentchromiumsaltsareusedasmordantsintextiledyeing,intheceramicandglassindustry,intheleatherindustryasatanningagent,andinphotography.Chromiummaybepresentinwastewaterfromtheseindustriesandmayalsobedischargedfromchromate-treatedcoolingwaters.Thehexavalentstateofchromiumistoxictohumans,animals,andaquaticlife.Itcanproducelungtumorswheninhaledandreadilyinducesskinsensitization.However,itisnotknownwhethercancerwillresultfromingestionofchromiuminanyofitsvalencestates.1.1Thesetestmethodscoverthedeterminationofhexavalentandtotalchromiuminwater.Threetestmethodsareincludedasfollows:TestMethodConcentrationRangeSectionsA-PhotometricDiphenyl-carbohydrazide0.01to0.5mg/LB-AtomicAbsorption,Direct0.1to10mg/LC-AtomicAbsorption,GraphiteFurnace5to100g/L