MIL-HDBK-814
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来源:标准资料网
MIL-HDBK-814, MILITARY HANDBOOK: IONIZING DOSE AND NEUTRON HARDNESS ASSURANCE GUIDELINES FOR MICROCIRCUITS AND SEMICONDUCTOR DEVICES (08 FEB 1994)., The purpose of this handbook is to establish a guide to the application of piece part hardness assurance programs for the effects of ionizing raditaion (total) dose and neutron damage to semiconductor electronics.
【英文标准名称】:StandardTestMethodforShakeExtractionofMiningWastebytheSyntheticPrecipitationLeachingProcedure
【原文标准名称】:通过合成沉淀漓滤过程对采矿废物的摇混提取的标准试验方法
【标准号】:ASTMD6234-1998(2007)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D34.01.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:提取液;漓滤过程;采矿废物;摇混提取;合成沉淀;废物漓滤技术;提取
【英文主题词】:extract;extractionfluid;leachingprocedure;miningwaste;shakeextraction;SPLP;syntheticprecipitation;wasteleachingtechnique
【摘要】:Thistestmethodisintendedasameansforobtaininganextractofminingwaste.Theextractmaybeusedtoestimatethereleaseofcertaininorganicconstituentsofthewasteunderthelaboratoryconditionsdescribedinthistestmethod.Theuserisadvisedtominimizetheholdingtimebetweensamplingandtestingifthewasteissuspectedtocontainreactivesulfideminerals.Note28212;Thismethodisnotintendedtobeusedasakinetictesttosimulateweatheringofminingwastes.Forkinetictestingofminingwastes,refertoTestMethodD5744todeterminereleaseratesforconstituentsofinterest.ThepHoftheextractionfluidusedinthistestmethodistoreflectthepHofacidicprecipitationinthegeographicregioninwhichthewastebeingtestedistobedisposed(see1.2).AnintentofthistestmethodisforthefinalpHoftheextracttoreflecttheinteractionoftheextractantwiththebufferingcapacityofthewaste.Thistestmethodisnotintendedtoprovideanextractthatisrepresentativeoftheactualleachateproducedfromawasteinthefieldortoproduceextractstobeusedasthesolebasisofengineeringdesign.IftheconditionsofthistestmethodarenotsuitableforthetestmaterialUSEPAMethod1312maybeused.Thistestmethodhasnotbeendemonstratedtosimulateactualdisposalsiteleachingconditions.Thistestmethodproducesextractsthatareamenabletothedeterminationofbothmajorandminor(trace)inorganicconstituents.Whenminorconstituentsarebeingdetermined,itisespeciallyimportantthatprecautionsbetakeninsamplestorageandhandlingtoavoidpossiblecontaminationofthesamples.Thistestmethodhasbeentestedtodetermineitsapplicabilitytocertaininorganiccomponentsinthewaste.Thistestmethodhasnotbeentestedforapplicabilitytoorganicsubstances,volatilematter(seeNote4),orbiologicallyactivesamples.Thistestmethodhasundergonelimitedtestingtodetermineitsreproducibility.1.1Thistestmethodcoversaprocedurefortheshakeleachingofminingwastecontainingatleast80%drysolids(20%moisture)inordertogenerateasolutiontobeusedtodeterminetheinorganicconstituentsleachedunderthespecifiedtestingconditions,thatconformtothesyntheticprecipitationleachingprocedure(SPLP).1.2Thistestmethodcallsfortheshakingofaknownweightofminingwastewithacidicextractionfluidofaspecifiedcompositionaswellastheseparationoftheliquidphaseforanalysis.ThepHoftheextractionfluidistoreflectthepHofacidicprecipitationinthegeographicregioninwhichthewastebeingtestedistobedisposed.Note1PossiblesourcesofinformationconcerningthepHoftheprecipitationinthegeographicregionofinterestincludestateandfederalenvironmentalagencies,stateuniversities,libraries,etc.pHvaluesgiveninUSEPAMethod1312,thatare4.2eastoftheMississippiRiverand5.0westoftheMississippiRiverandarebasedonacidprecipitationmaps,areexamplesofvaluesthatcanbeused.IfthepHofthelaboratorywaterislessthanthedesiredpHforthesite,donotusethistestmethod,useTestMethodD3987.1.3Thistestmethodisintendedtodescribetheprocedureforperformingsinglebatchextractionsonly.Itdoesnotdescribealltypesofsamplingandanalyticalrequirementsthatmaybeassociatedwithitsapplication.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealth......
【中国标准分类号】:Z23
【国际标准分类号】:73_020
【页数】:7P.;A4
【正文语种】:
基本信息
| 标准名称： | YKA型圆块孔式石墨换热器 |
| 中标分类： |
化工 >>
化工机械与设备 >>
非金属化工机械设备 |
| 替代情况： | 被HG/T 3113-98代替 |
| 发布日期： | |
| 实施日期： | 1994-10-01 |
| 首发日期： | |
| 作废日期： | 1998-10-01 |
| 出版日期： | |
| 页数： | 5页 |
适用范围
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前言
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引用标准
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所属分类： 化工 化工机械与设备 非金属化工机械设备
