【英文标准名称】:StandardTestMethodforDeterminingTensilePropertiesofGeogridsbytheSingleorMulti-RibTensileMethod
【原文标准名称】:单棱或多棱拉伸法测定土工格栅的抗拉特性的标准试验方法
【标准号】:ASTMD6637-2010
【标准状态】:现行
【国别】:美国
【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】:D35.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:geogrid;geogridrib;geosynthetic;geotextile;indextest;tensiletest;Georigids;Geosynthetics;Multi-ribtensilemethod;Single-ribtensilemethod;Tensileproperties/testing--geosynthetics
【摘要】:Thedeterminationofthetensileforce-elongationvaluesofgeogridsprovidesindexpropertyvalues.Thistestmethodshallbeusedforqualitycontrolandacceptancetestingofcommercialshipmentsofgeogrids.Incasesofdisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepurchaserandsuppliershouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimenswhichareashomogeneousaspossibleandwhicharefromalotofmaterialofthetypeinquestion.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingStudent''st-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforethetestingbegan.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandsuppliermustagreetointerpretfuturetestresultsinlightoftheknownbias.Allgeogridscanbetestedbyanyofthesemethods.Somemodificationoftechniquesmaybenecessaryforagivengeogriddependinguponitsphysicalmake-up.Specialadaptationsmaybenecessarywithstronggeogrids,multiplelayeredgeogrids,orgeogridsthattendtoslipintheclampsorthosewhichtendtobedamagedbytheclamps.1.1Thistestmethodcoversthedeterminationofthetensilestrengthpropertiesofgeogridsbysubjectingstripsofvaryingwidthtotensileloading.1.2Threealternativeproceduresareprovidedtodeterminethetensilestrength,asfollows:1.2.1MethodA8212;Testingasinglegeogridribintension(Norlbf).1.2.2MethodB8212;Testingmultiplegeogridribsintension(kN/morlbf/ft).1.2.3MethodC8212;Testingmultiplelayersofmultiplegeogridribsintension(kN/morlbf/ft).1.3Thistestmethodisintendedforqualitycontrolandconformancetestingofgeogrids.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundvaluesstatedinparenthesesareprovidedforinformationonly.1.5Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G32
【国际标准分类号】:59_080_70
【页数】:6P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforSmokeObscurationofInsulatingMaterialsContainedinElectricalorOpticalFiberCablesWhenBurninginaVerticalCableTrayConfiguration
【原文标准名称】:电缆或光缆的绝缘材料在立式电缆槽结构中燃烧时烟雾造成黯淡的标准试验方法
【标准号】:ASTMD5424-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【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】:K13
【国际标准分类号】:13_220_40;29_060_01
【页数】:
【正文语种】:英语