【英文标准名称】:Shipbuilding.Steeldog-stepladders.
【原文标准名称】:造船工业.钢制阶梯
【标准号】:NFJ32-415-1985
【标准状态】:现行
【国别】:法国
【发布日期】:1985-12-01
【实施或试行日期】:1985-12-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:钢产品;尺寸;钢;梯子;规范;名称与符号;造船
【英文主题词】:Designations;Dimensions;Ladders;Shipbuilding;Specifications;Steelproducts;Steels
【摘要】:
【中国标准分类号】:U26
【国际标准分类号】:47_020_10
【页数】:3P;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforCompressiveStrengthofCylindricalConcreteSpecimens
【原文标准名称】:圆柱形混凝土试样的抗压强度的标准试验方法
【标准号】:ASTMC39/C39M-2010
【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】:
【英文主题词】:Compressiontesting--cement/concrete;Concretetestspecimens;Cylindricalconcretespecimens
【摘要】:Caremustbeexercisedintheinterpretationofthesignificanceofcompressivestrengthdeterminationsbythistestmethodsincestrengthisnotafundamentalorintrinsicpropertyofconcretemadefromgivenmaterials.Valuesobtainedwilldependonthesizeandshapeofthespecimen,batching,mixingprocedures,themethodsofsampling,molding,andfabricationandtheage,temperature,andmoistureconditionsduringcuring.ThistestmethodisusedtodeterminecompressivestrengthofcylindricalspecimenspreparedandcuredinaccordancewithPracticesC31/C31M,C192/C192M,C617,andC1231/C1231MandTestMethodsC42/C42MandC873.Theresultsofthistestmethodareusedasabasisforqualitycontrolofconcreteproportioning,mixing,andplacingoperations;determinationofcompliancewithspecifications;controlforevaluatingeffectivenessofadmixtures;andsimilaruses.TheindividualwhotestsconcretecylindersforacceptancetestingshallmeettheconcretelaboratorytechnicianrequirementsofPracticeC1077,includinganexaminationrequiringperformancedemonstrationthatisevaluatedbyanindependentexaminer.Note18212;CertificationequivalenttotheminimumguidelinesforACIConcreteLaboratoryTechnician,LevelIorACIConcreteStrengthTestingTechnicianwillsatisfythisrequirement.1.1Thistestmethodcoversdeterminationofcompressivestrengthofcylindricalconcretespecimenssuchasmoldedcylindersanddrilledcores.Itislimitedtoconcretehavingadensityinexcessof800kg/m3[50lb/ft3].1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Theinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(WarningMeansshouldbeprovidedtocontainconcretefragmentsduringsuddenruptureofspecimens.Tendencyforsuddenruptureincreaseswithincreasingconcretestrengthanditismorelikelywhenthetestingmachineisrelativelyflexible.Thesafetyprecautionsgiveninthearerecommended.)1.4Thetextofthisstandardreferencesnoteswhichprovideexplanatorymaterial.Thesenotesshallnotbeconsideredasrequirementsofthestandard.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:7P.;A4
【正文语种】: