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ASTM D1971-2011 用火焰原子吸收法,石墨炉原子吸收法,等离子体发射光谱法或等离子体质谱法测定金属含量用水试样浸煮的标准实施规范

作者:标准资料网 时间:2022-12-01 08:59:04  浏览:8715   来源:标准资料网
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【英文标准名称】:StandardPracticesforDigestionofWaterSamplesforDeterminationofMetalsbyFlameAtomicAbsorption,GraphiteFurnaceAtomicAbsorption,PlasmaEmissionSpectroscopy,orPlasmaMassSpectrometry
【原文标准名称】:用火焰原子吸收法,石墨炉原子吸收法,等离子体发射光谱法或等离子体质谱法测定金属含量用水试样浸煮的标准实施规范
【标准号】:ASTMD1971-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:(Practice)
【标准水平】:()
【中文主题词】:发酵作用;石墨炉原子吸收法;电感耦合等离子体(ICP);金属;废水;水;矿物酸溶解;等离子发射分光学
【英文主题词】:digestion;graphitefurnaceatomicabsorptionspectroscopy;inductivelycoupledplasma(ICP);metals;wastewater;water;Mineralaciddissolution;Plasmaemissionspectroscopy
【摘要】:Thedeterminationofmetalsinwateroftenrequiresthemeasurementoftotal(suspendedanddissolved)metalsaswellassoluble(dissolved)metals.Insuchcases,consistentanddependabledigestionproceduresmustbeusedsothatdataderivedforthetotalmetalscontentisreliable.Thepracticesgivenareapplicabletoawidevarietyofsampletypesforthepurposeofpreparingasampleformetalsanalysesbyatomicabsorptionspectrophotometryorplasmaemissionspectroscopy(seeTestMethodsD1976,D3919,D4691,andD4190)orplasma-massspectrometry(SeeTestMethodD5673)andhavebeenshowntogivegoodrecoveryinthefollowingmatrices:industrialeffluents;wastewatertreatmentplantinfluents,sludges,dewateredsludges,andeffluents;riverandlakewaters;andplantandanimaltissues.Elementswhichhaveshowngoodrecoveryinclude:copper,nickel,lead,zinc,cadmium,iron,manganese,magnesium,andcalcium.Goodrecoveryfortheindicatedsampletypesandmetalsmaynotbeachievedatalltimesduetoeachsample''suniquecharacteristics.Usersmustalwaysvalidatethepracticefortheirparticularsamples.Theanalyticalresultsachievedafterapplyingthesepracticescannotnecessarilybedeemedasameasureofbioavailableorenvironmentallyavailableelements.Thesethreepracticesmaynotgivethesamerecoverywhenappliedtothesamesample,norwilltheynecessarilygivethesameresultsasachievedusingotherdigestiontechniques.AnalternatedigestiontechniqueisPracticeD4309.1.1Mostatomicabsorptionandplasmaemissionspectroscopy,andplasma-massspectrometrictestmethodsrequirethatthemetalsofinterestbedissolvedinaliquidphasebeforebeingintroducedintothespectrophotometer.Thesepracticesdescribedigestionordissolutionprocedureswherebyanalytemetalsassociatedwiththesolidfractionofasamplecanbebroughtintosolutionforsubsequentanalysis.Thefollowingpracticesareincluded:
Sections
PracticeADigestionwithMineralAcidsandElevatedPressure
8through13
PracticeBDigestionwithMineralAcidsandHeatingatAtmosphericPressure
14through19
PracticeCIn-bottledigestionwithMineralAcids
20through25
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【英文标准名称】:Operatingelements(controldevices)forpneumatictools;terms,safetyrequirements
【原文标准名称】:风动工具的(控制装置)操纵元件.术语和安全性要求
【标准号】:DIN24063-1980
【标准状态】:现行
【国别】:德国
【发布日期】:1980-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:安全工程;剪刀;规范(审批);机械工程;钻床;按钮;磨床;机翼;手柄;定义;压缩空气;夯锤;混凝土破碎机;气动工具;操作元件
【英文主题词】:wings;pushbuttons;safetyengineering;scissors;concretebreakers;pneumatictools;handles;drillingmachines;definitions;specification(approval);grindingmachines;mechanicalengineering;compressedair;o
【摘要】:Operatingelements(controldevices)forpneumatictools;terms,safetyrequirementsDieseNormenth?ltsicherheitstechnischeFestlegungenimSinnedesGesetzesübertechnischeArbeitsmittel(GtA).
【中国标准分类号】:J48
【国际标准分类号】:3550
【页数】:4P;A4
【正文语种】:德语


【英文标准名称】:Photography.135-sizefilmandmagazine.Specifications
【原文标准名称】:摄影技术.135号胶卷和暗盒.规范
【标准号】:BSISO1007-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1996-01-15
【实施或试行日期】:1996-01-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:识别方法;胶卷;摄影;作标记;循环式暗盒;摄影材料;拨拉试验;胶卷规格;静物摄影胶片;尺寸;摄影胶片;试验设备;性能试验;软片包装;条码;图形符号
【英文主题词】:identificationmethods;dimensions;photography;pull-outtests;rollfilm;barcodes;photographicmaterials;photographicfilm;roll-filmsize;cassettes(photographicfilm);testequipment;stillphotographicfilm;filmpacks;graphicsymbols;performancetesting;marking
【摘要】:
【中国标准分类号】:G81
【国际标准分类号】:37_040_20
【页数】:40P.;A4
【正文语种】:英语