DIN EN 1537-2000 特殊土工工作的执行.地锚
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【英文标准名称】:Executionofspecialgeotechnicalworks-Groundanchors;GermanversionEN1537:1999
【原文标准名称】:特殊土工工作的执行.地锚
【标准号】:DINEN1537-2000
【标准状态】:作废
【国别】:德国
【发布日期】:2000-06
【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】:现场勘测;验证;土木工程;施工作业;验收检验;检验;射入锚栓;防腐蚀;土工学;装置;尺寸选定;锚固结构;工作质量;生产;特殊土工工作;试验;建筑;监督(认可);定义;规范(验收)
【英文主题词】:
【摘要】:
【中国标准分类号】:P20
【国际标准分类号】:93_020
【页数】:35P;A4
【正文语种】:德语
Product Code:SAE J910
Title:Hazard Warning Signal Switch
Issuing Committee:Circuit Protection And Switch Device Steering Committee
Scope: This standard defines the test conditions, procedures and performance specifications for 6, 12 and 24-V manually actuated hazard warning signal switch.【英文标准名称】:StandardTestMethodforRadialCrushingStrength,K,ofPowderMetallurgy(P/M)BearingsandStructuralMaterials
【原文标准名称】:粉末冶金(P/M)承重和结构材料的径向压溃强度K的标准试验方法
【标准号】:ASTMB939-2009
【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】:B09.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:K;materialstrength;PMbearings;radialcrushingstrength;Structuralmaterials;Powdermetallurgy(P/M)materials;Radialcrushing;Radialcrushingforce
【摘要】:TheradialcrushingstrengthtestisadestructiveprocedureusedtodetermineamaterialstrengthcharacteristicofPMbearingsandhollowcylindricaltestspecimens.Thesedatacanbeusedtograde,classify,andevaluatethematerials.ThePMbearingSpecificationsB438andB439requiretheuseofthistestmethodasanacceptancetestforthestrengthofoil-impregnatedsinteredbearings.Thistestmethodmaybeusedbypowderproducersandpartsmanufacturersasalotacceptancetestformetalpowdersandlubricatedpowdermixturesintendedfortheproductionofporousparts.CompaniesinthePMindustryusethistestasamanufacturingcontroltestbecauseitisappropriateforproductionpractices.RadialcrushingstrengthisapropertyofthePMmaterialbutisnotadesignvalue.However,experiencehasshownthattheradialcrushingstrengthofamaterialisapproximatelytwicetheultimatetensilestrength.1.1Thistestmethodcoverstheequipmentandlaboratoryprocedureforthedeterminationoftheradialcrushingstrengthofmaterialsusingeitheraplainpowdermetallurgy(PM)bearingorathin-walledhollowcylindricaltestspecimen.Thisisadestructivetestthatproducesquantitativeresults.1.2Limitations:1.2.1Theprincipleofthisprocedureisbasedonthematerialbeingtestedhavingminimalductility.Thepermanentdeflectionofthecylinderduringthetestshouldnotexceed10%oftheoutsidediameter.1.2.2Theradialcrushingstrengthtestresultsshouldbeusedonlyasaguideifthetestspecimenhasawallthicknessthatisgreaterthanone-thirdoftheoutsidediameter.Thesetestresultsshouldthenonlybeusedforcomparisonwithdatafromthetestspecimensoflikematerialsandsimilardimensions.1.3Withtheexceptionofdensityvalues,forwhichtheg/cm3unitistheindustrystandard,thevaluesstatedininch-poundunitsaretobeconsideredthestandard.ThevaluesinSIunits,showninparenthesishavebeenconvertedinaccordancewithIEEE/ASTMStandardSI10,maybeapproximateandareonlyincludedforinformation.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H72
【国际标准分类号】:77_160
【页数】:3P.;A4
【正文语种】:英语
