ASTM D5198-2009 固体废弃物的硝酸处理的标准方法

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【英文标准名称】:StandardPracticeforNitricAcidDigestionofSolidWaste
【原文标准名称】:固体废弃物的硝酸处理的标准方法
【标准号】:ASTMD5198-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D34.01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:digestion;nitricacid;waste;Leadscreeningtesting;Manganese;Nickel;Zinc;Nitricacid;Oilysludges;Phosphorus;Sludge;Toxicity/toxicology;Vanadium;Wastematerials/processing/analysis;Aluminum;Beryllium;Cadmiummetals/alloys;Chromium;
【摘要】:Aknowledgeoftheinorganiccompositionofawasteisoftenrequiredfortheselectionofappropriatewastedisposalpractices.Solidwastemayexistinavarietyofformsandcontainarangeoforganicandinorganicconstituents.Thispracticedescribesadigestionprocedurewhichdissolvesmanyofthetoxicinorganicconstituentsandproducesasolutionsuitablefordeterminationbysuchtechniquesasatomicabsorptionspectroscopy,atomicemissionspectroscopy,andsoforth.Therelativelylargesamplesizeaidsrepresentativesamplingofheterogenouswastes.Therelativelysmalldilutionfactorallowslowerdetectionlimitsthanmostothersampledigestionmethods.Volatilemetals,suchasleadandmercury,arenotlostduringthisdigestionprocedure,howeverorgano-leadandorgano-mercurymaynotbecompletelydigested.Hydride-formingelements,suchasarsenicandselenium,maybepartiallylost.Sampleswithtotalmetalcontentsgreaterthan5%maygivelowresults.Theanalystisresponsiblefordeterminingwhetherthispracticeisapplicabletothesolidwastebeingtested.1.1Thispracticedescribesthedigestionofsolidwasteusingnitricacidforthesubsequentdeterminationofinorganicconstituentsbyplasmaemissionspectroscopyoratomicabsorptionspectroscopy.1.2Thefollowingelementsmaybesolubilizedbythispractice:
aluminum
manganese

beryllium
mercury

cadmium
nickel

chromium
phosphorus

copper
vanadium

iron
zinc

lead