【英文标准名称】:Measurementofnoiseemittedbymachines;airbornenoiseemission;envelopingsurfacemethodandspecialreverberationroommethod;householdandsimilarelectricalappliances;particularrequirementsforvacuumcleaners;(IEC704-2-1:1985modified);germ
【原文标准名称】:机器噪声测量.空气载声测量.包面和特殊混响室法.家用及类似用途电气设备.吸尘器特殊要求
【标准号】:DIN45635-1001-1990
【标准状态】:作废
【国别】:德国
【发布日期】:1990-12
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:Z32
【国际标准分类号】:17_140_20
【页数】:7P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforCompressiveStrengthofConcreteCylindersCastinPlaceinCylindricalMolds
【原文标准名称】:在圆柱形模型中现场浇注的混凝土圆筒的抗压强度的标准试验方法
【标准号】:ASTMC873/C873M-2010a
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:C09.61
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:耐压强度;混凝土;圆筒模具;现场强度
【英文主题词】:compressivestrength;concrete;cylindermolds;in-placestrength
【摘要】:Cast-in-placecylinderstrengthrelatestothestrengthofconcreteinthestructureduetothesimilarityofcuringconditionsbecausethecylinderiscuredwithintheslab.However,duetodifferencesinmoisturecondition,degreeofconsolidation,specimensize,andlength-diameterratio,thereisnotauniquerelationshipbetweenthestrengthofcast-in-placecylindersandcoresofthesameage.Whencorescanbedrilledundamagedandtestedinthesamemoistureconditionasthecast-in-placecylinders,thestrengthofthecylinderscanbeexpectedtobeonaverage10%higherthanthecoresatagesupto91daysforspecimensofthesamesizeandlength-diameterratio.Strengthofcast-in-placecylindersmaybeusedforvariouspurposes,suchasestimatingtheload-bearingcapacityofslabs,determiningthetimeofformandshoreremoval,anddeterminingtheeffectivenessofcuringandprotection.1.1Thistestmethodcoversthedeterminationofstrengthofcylindricalconcretespecimensthathavebeenmoldedinplaceusingspecialmoldsattachedtoformwork.Thistestmethodislimitedtouseinslabswherethedepthofconcreteisfrom125to300mm[5to12in.].1.2Units8212;ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WarningFreshhydrauliccementitiousmixturesarecausticandmaycausechemicalburnstoskinandtissueuponprolongedexposure.)
【中国标准分类号】:
【国际标准分类号】:91_100_30
【页数】:4P.;A4
【正文语种】: