【英文标准名称】:StandardTestMethodforBariuminWater,AtomicAbsorptionSpectrophotometry,GraphiteFurnace
【原文标准名称】:用石墨炉原子吸收分光光度法对水中钡的标准试验方法
【标准号】:ASTMD4382-2002(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;含量测定
【英文主题词】:atomicabsorption;barium;furnace;totalrecoverablemetals
【摘要】:Bariumranksaboutsixthinorderofabundanceinnature;however,itisnormallyfoundinonlytracequantitiesindrinkingwater.Consumption,inhalation,orabsorptionof500to600mgisconsideredfataltohumanbeings.3Lowerlevelsmayresultindisordersoftheheart,bloodvessels,andnerves.Thedrinkingwaterstandardssetthemaximumcontaminantlevelforbariumas2mgbarium/L.1.1Thistestmethodcoversthedeterminationofdissolvedandtotalrecoverablebariuminmostwatersandwastewaters.1.2Thistestmethodwasevaluatedintherangefrom33.5to132g/Lofbarium.Therangecanbeincreasedordecreasedbyvaryingthevolumeofsampleinjectedortheinstrumentalsettings.Highconcentrationsmaybedilutedbutpreferablyshouldbeanalyzedbydirectaspirationatomicabsorptionspectrophotometry.1.3Thistestmethodhasbeenusedsuccessfullywithwastetreatmentplanteffluentwater,lakewater,filteredtapwater,andwellwater.Itistheresponsibilityoftheanalysttodeterminethesuitabilityofthetestmethodforothermatrices.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:CheckingtheSizeofDiamondAbrasiveGrain
【原文标准名称】:金刚石磨粒尺寸的检验
【标准号】:ANSIB74.16-1982
【标准状态】:作废
【国别】:美国
【发布日期】:1982
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:磨料;金刚石;粒度
【英文主题词】:abrasives;diamond;grainsize
【摘要】:
【中国标准分类号】:J43
【国际标准分类号】:25_100_70
【页数】:13P;A4
【正文语种】:英语