ASTM A 923-1998 检测锻造双重奥氏体/铁素体不锈钢不稳定金属间相的标准试验方法

上一篇: ASTM E 1941-1998 高熔点和活性金属及其合金中碳含量测定的标准试验方法
下一篇: ASTM B 828-1998 用铜和铜合金管及配件钎焊制作毛细管连接件

【英文标准名称】:Europeandigitalcellulartelecommunicationssystem(phase2)-CallForwarding(CF)supplementaryservices,stage2;EnglishversionETS300543:1995
【原文标准名称】:欧洲蜂窝数字通信系统(2).呼叫转接补充服务,2级
【标准号】:DINETS300543-1995
【标准状态】:作废
【国别】:德国
【发布日期】:1995-08
【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】:移动无线电通信系统;通信;欧洲的;无线电装置;无线电话阻塞;转向;补充业务;电气工程;数字的;电信设备;远程通信;通信系统;电信;呼叫传输;公共的;地面流动服务设施;特殊服务;通信网
【英文主题词】:
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_060_80
【页数】:82P;A4
【正文语种】:德语


【英文标准名称】:StandardTestMethodforPenetrationResistanceofHardenedConcrete
【原文标准名称】:硬化混凝土抗渗透性的标准试验方法
【标准号】:ASTMC803/C803M-2003(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:C09.64
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:concretestrength;concreteuniformity;in-placestrength;in-placetest;penetrationresistance;Hardenedconcrete;Nondestructiveevaluation(NDE)--concrete/masonry;Penetration--cement/concrete;Probemethods;Steelprobe;Strength--cement/concretemi
【摘要】:Thistestmethodisapplicabletoassesstheuniformityofconcreteandtodelineatezonesofpoorqualityordeterioratedconcreteinstructures.Thistestmethodisapplicabletoestimatein-placestrength,providedthatarelationshiphasbeenexperimentallyestablishedbetweenpenetrationresistanceandconcretestrength.Sucharelationshipmustbeestablishedforagiventestapparatus(seealso9.1.5),usingsimilarconcretematerialsandmixtureproportionsasinthestructure.UsetheproceduresandstatisticalmethodsinACI228.1Rfordevelopingandusingthestrengthrelationship.Note18212;Sincepenetrationresultsmaybeaffectedbythenatureoftheformedsurfaces(forexample,woodenformsversussteelforms),correlationtestingshouldbeperformedonspecimenswithformedsurfacessimilartothosetobeusedduringconstruction.Additionalinformationonthefactorsaffectingpenetrationtestresultsandsummariesofpastresearchareavailable.,Steelprobesaredrivenwithahigh-energy,powder-actuateddriver,andprobesmaypenetratesomeaggregateparticles.Probepenetrationresistanceisaffectedbyconcretestrengthaswellasthenatureofthecoarseaggregate.Steelpinsaresmallerinsizethanprobesandaredrivenbyalowenergy,spring-actuateddriver.Pinsareintendedtopenetratethemortarfractiononly;therefore,atestinwhichapinstrikesacoarseaggregateparticleisdisregarded.Thistestmethodresultsinsurfacedamagetotheconcrete,whichmayrequirerepairinexposedarchitecturalfinishes.1.1Thistestmethodcoversthedeterminationoftheresistanceofhardenedconcretetopenetrationbyeitherasteelprobeorpin.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:5P.;A4
【正文语种】:英语