SAE AMS2355 Quality Assurance Sampling and Testing Aluminum Alloys and Magnesium Alloys, Wrought Products, Except Forgi

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Product Code:SAE AMS2355
Title:Quality Assurance Sampling and Testing Aluminum Alloys and Magnesium Alloys, Wrought Products, Except Forging Stock, and Rolled, Forged, or Flash Welded Rings
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope: This specification covers quality assurance sampling and testing procedures used to determine conformance to applicable specification requirements of wrought aluminum alloy and wrought magnesium alloy mill products, except forging stock, including rolled, forged, and flash welded rings, specified in inch/pound units. Definitions of rings, as applicable to this specification, are presented in 8.3 (definitions).
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【英文标准名称】:StandardTestMethodsforSeleniuminWater
【原文标准名称】:水中硒含量的标准试验方法
【标准号】:ASTMD3859-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:
【英文主题词】:atomicabsorption;furnace(MethodB);hydridetechnique(MethodA);selenium;totalrecoverableselenium;water;Atomicabsorptionspectrophotometry/spectroscopy;Dissolvedelements(ofwater);Furnaces;GaseoushydrideAAS;Graphitefurnaceatomic
【摘要】:Inmostnaturalwatersseleniumconcentrationsseldomexceed10x03BC;g/L.However,therunofffromcertaintypesofseleniferoussoilsatvarioustimesoftheyearcanproduceconcentrationsashighasseveralhundredmicrogramsperlitre.Additionally,industrialcontaminationcanbeasignificantsourceofseleniuminriversandstreams.Highconcentrationsofseleniumindrinkingwaterhavebeensuspectedofbeingtoxictoanimallife.Seleniumisaprioritypollutantandallpublicwateragenciesarerequiredtomonitoritsconcentration.Thesetestmethodsdeterminethedominantspeciesofseleniumreportedlyfoundinmostnaturalandwastewaters,includingselenities,selenates,andorgano-seleniumcompounds.1.1Thesetestmethodscoverthedeterminationofdissolvedandtotalrecoverableseleniuminmostwatersandwastewaters.Bothtestmethodsutilizeatomicabsorptionprocedures,asfollows:
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标准名称:国际卫生机场考评规程
发布日期:2009-07-07
实施日期:2010-01-16
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作废日期:
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