【英文标准名称】:EnvironmentalEngineering(EE)-Powersupplyinterfaceattheinputtotelecommunicationsequipment-Part2:Operatedbydirectcurrent(dc)(EndorsementoftheEnglishversionEN300132-2V2.1.2(2003-09)asGermanstandard)
【原文标准名称】:环境工程.向电信设备输入的电源接口.第2部分:直流(dc)操作
【标准号】:DINEN300132-2-2005
【标准状态】:作废
【国别】:德国
【发布日期】:2005-06
【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】:装置外形;电力连接接口;设备工程;终端装置;仪器;电力系统;远程通信;接口;通信设备;直流电流;仪器工艺
【英文主题词】:Communicationequipment;Deviceconfiguration;Directcurrent;Electricpowersystems;Instrumenttechnology;Instruments;Interfaces;Interfacesofelectricalconnections;Plantengineering;Telecommunication;Telecommunications;Terminaldevices
【摘要】:ThisEuropeanstandardspecifiesrequirementsinthetelecommunicationsector.
【中国标准分类号】:M30
【国际标准分类号】:33_050_01
【页数】:2P;A4
【正文语种】:德语


【英文标准名称】:StandardPracticeforMoldingRoller-CompactedConcreteinCylinderMoldsUsingaVibratingHammer
【原文标准名称】:用振动锤在柱形模子中模压碾实混凝土的标准实施规范
【标准号】:ASTMC1435/C1435M-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:C09.45
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:compressive;consolidate;cylinder;molds;rollercompactedconcrete;soilcement;specimen;strength;tensile;vibratinghammer;Cylindricalconcretespecimens;Roller-compactedconcrete;Vibratinghammer;ICS91.100.30
【摘要】:Thispractice,intendedforuseintestingroller-compactedconcrete,maybeapplicabletotestingothertypesofcementitiousmaterialsuchascoarse-grained,soil-cement.Thispracticeprovidesstandardizedrequirementsformoldingstifftoverydryconsistencyconcretemixturescommonlyusedinrollercompactedconcreteconstruction.Thispracticeisusedinsteadofroddingorinternalvibration,whichcannotproperlyconsolidateconcreteofthisconsistency(Note1).Note18212;FurtherdescriptionofrollercompactedconcreteconsistencyisgiveninACI207.5Rand211.3.TheconsistencyofconcreteusingavibratingtablemaybedeterminedinaccordancewithTestMethodsC1170.Thispracticeisusedtomoldcylindricaltestspecimenscommonlyusedfortestingcompressiveortensilestrengthofconcrete.SpecimenstestedforcompressivestrengthandsplittingtensilestrengthshallbeinaccordancewithTestMethodsC39/C39MandC496/C496M,respectively.Testspecimensalsomaybeusedtodeterminedensityoffreshconcrete.SpecimenstestedfordensityoffreshconcreteshallbeinaccordancewithTestMethodsC1170.Note28212;Forsomeextremelydrymixtures;(thosewithaconsistencygreaterthan45swhentestedinaccordancewithTestMethodsC1170)thedensityofspecimensmadeinaccordancewiththispracticemaybegreaterthanthein-placedensityofroller-compactedconcreteduetothegreaterpotentialforvoidsatthebottomoftheliftsinthefield.1.1Thispracticecoversmoldingcylindricaltestspecimensfromconcretewhenthestandardproceduresofroddingandinternalvibration,asdescribedinPracticeC31/C31MandPracticeC1176,arenotpracticable.Thispracticeisapplicabletofreshly-mixedconcrete,preparedinthelaboratoryandthefield.1.2Freshly-mixedconcreteismoldedincylindricalmoldsusinganelectricvibratinghammerequippedwithashaftandcircularplate.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thetextofthispracticereferencesnotesandfootnotes,whichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthispractice.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q13
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:英语