您的位置: 标准下载 » 国内标准 » GB 国标 »

GB/T 9074.3-1988 十字槽盘头螺钉和弹簧垫圈组合件

时间:2024-05-15 01:24:30 来源: 标准资料网 作者:标准资料网 阅读:9633
下载地址: 点击此处下载
基本信息
标准名称:十字槽盘头螺钉和弹簧垫圈组合件
英文名称:Cross recessed pan head screw and single coil spring lock washer assemblies
中标分类: 机械 >> 通用零部件 >> 紧固件
ICS分类: 机械系统和通用件 >> 紧固件
发布部门: 中国机械工业联合会
发布日期:1988-04-16
实施日期:1989-01-01
首发日期:1988-04-16
作废日期:1900-01-01
主管部门:中国机械工业联合会
归口单位:全国紧固件标准化技术委员会
起草单位:机械部标准化所
出版日期:1900-01-01
页数:3页
适用范围

没有内容

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类: 机械 通用零部件 紧固件 机械系统和通用件 紧固件
【英文标准名称】:Methodsoftestingcement;determinationofthechloridecarbondioxideandalkalicontentofcement;germanversionEN196-21:1989
【原文标准名称】:水泥检验方法.氯化物、二氧化碳和碱成分测定
【标准号】:DINEN196-21-1990
【标准状态】:作废
【国别】:德国
【发布日期】:1990-03
【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】:分析;施工材料;含量测定;试验;建筑;检验规范;化学分析和试验;氯化物;强碱;规范(审批);二氧化碳;水泥
【英文主题词】:chlorides;analysis;testing;bindingagents;chemicalanalysisandtesting;specification(approval);testingconditions;construction;constructionmaterials;carbondioxide;determinationofcontent;cements;
【摘要】:
【中国标准分类号】:Q11
【国际标准分类号】:91_100_10
【页数】:11P;A4
【正文语种】:德语


【英文标准名称】:StandardGuideforUnrestrictedDispositionofBulkMaterialsContainingResidualAmountsofRadioactivity
【原文标准名称】:含放射性残余物的松散材料的无约束处理的标准指南
【标准号】:ASTME1760-2009
【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】:E10.03
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:decontaminationanddecommissioning;radiologicallycontaminatedmaterials;releaseofmaterials;Contamination--nuclear;Radiationexposure--nuclearmaterials/applications;Radioactivewastematerials;Residualradioactivity;Traceelements--nuclear
【摘要】:MaterialsencounteredduringDx0026;Dmaycontainresidualradioactivityvaryinginamountsfromthatinirradiatedfueltobarelydetectablequantitiesinoronbuildingmaterials.Itisclearthathighlyradioactivematerialshavetobedisposedasradioactivewastepursuantto10CFR60and10CFR61.Conversely,itisnotreasonabletoexpendadisproportionateamountofresourcestoisolatematerialsthatcontainminutequantitiesofradioactivematerialsthatwillnotcauseevenstatisticallymeasurablehealtheffects.Thisguideprovidesarationaleandmethodologyfordistinguishingbetweenmaterialsthatcontainsufficientradioactivitytowarrantisolationofsometype(storageawaitingdecay,near-surfacedisposal,disposalwithintruderprotection,orplacementinadeeprepository)frommaterialswithinsignificantradioactivecontent.Materialswithinsignificantradioactivecontentcanberecycledintheeconomyordisposedofinconventional(landfill)facilitieswithoutadversehealtheffects.Materialsthatmeetthecriteriaidentifiedinthisguidearenotsimplyexcludedfromregulationbecausetheydonotfallpreciselyintheregulatoryscope.Theyaresufficientlyfreeofradioactivematerialsothatnofurthereffortsatcontrolarejustifiedforradiationprotectionpurposes.Therefore,thereleaseofmaterialsforunrestricteduseinaccordancewiththisguidemeetsthecriteriaforbeinganx201C;aslowasreasonablyachievablex201D;(ALARA)activity.Forthepurposeofthisguide,thereturnofmaterialscontainingresidualradioactivitytosocietywithoutregulatoryrestrictionsisreferredtoasx201C;unrestrictedreleasebasedontheabsenceofthecrediblepotentialforadversehealtheffects.x201D;Thisguideassertsthatmaterialsrecycledthiswaywillhavenostatisticallymeasurablehealtheffectsregardlessofuse.Itdoesnotguaranteethatthematerialsaresuitableforuseineverypossibleapplication,forexample,traceamountsofradionuclidesinmaterialsmaynotbeacceptableforcertainphotographicandelectronicapplications.Thisguidealsoassertsthattheownerofthematerialsisresponsibleforensuringthatsociety''scriteriaforx201C;nomeasurablehealtheffectsx201D;ismetbeforerelease,andthattheresponsibilityforprovidingmaterialswiththepurityrequiredforaspecialapplicationrestsnotwiththeowner,butwiththedeveloperofthatapplication.1.1Thisguidecoversthetechniquesforobtainingapprovalforreleaseofmaterialsencounteredindecontaminationanddecommissioning(Dx0026;D)fromrestricteduse.Thiswouldbeaddressedinthedecommissioningplan(E1281).Itappliestomaterialsthatdonotmeetanyoftherequirementsforregulatorycontrolbecauseofradioactivitycontent.Fig.1showsthelogicdiagramfordeterminingthematerialsthatcouldbeconsideredforrelease.Materialsthatnegotiatethislogictreearereferredtoasx201C;candidateforreleasebasedondose.x201D;1.2Theobjectiveofthisguideistoprovideamethodologyfordistinguishingbetweenmaterialthatmustbecarefullyisolatedtopreventhumancontactfromthatthatcanberecycledorotherwisedisposedof.Itappliestomaterialinwhichtheradioactivityisdispersedmoreorlessuniformlythroughoutthevolumeofthematerial(termedresidualinbulkform)asopposedtosurfacecontaminatedobjects.1.3Surfacecontaminatedobjectsarematerialsexternallycontaminatedwithradioactivematerial.Provisio......
【中国标准分类号】:Z33
【国际标准分类号】:13_030_40
【页数】:6P.;A4
【正文语种】:英语