【英文标准名称】:StandardTestMethodforTensilePropertiesofGeotextilesbytheWide-WidthStripMethod
【原文标准名称】:用宽带法测试土工合成织物拉伸特性的标准试验方法
【标准号】:ASTMD4595-2009
【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】:D35.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Breakingstrength/tenacity;Elongation--geotextiles;Embankments;Felt;Geosynthetics;Knittedtextilefabrics;Loadingtests--geosynthetics;Nonwovengeotextilefabrics;Reinforcedgeomembranes;Secantmodulus;Slope;Tensileproperties/testing--geosynth
【摘要】:Thedeterminationofthewide-widthstripforcex2212;elongationpropertiesofgeotextilesprovidesdesignparametersforreinforcementtypeapplications,forexampledesignofreinforcedembankmentsoversoftsubgrades,reinforcedsoilretainingwalls,andreinforcementofslopes.Whenstrengthisnotnecessarilyadesignconsideration,analternativetestmethodmaybeusedforacceptancetesting.TestMethodD4595forthedeterminationofthewide-widthstriptensilepropertiesofgeotextilesmaybeusedfortheacceptancetestingofcommercialshipmentsofgeotextilesbutcautionisadvisedsinceinformationaboutbetween-laboratoryprecisionisincomplete(Note7).Comparativetestsasdirectedin5.1.1maybeadvisable.IncasesofadisputearisingfromdifferencesinreportedtestresultswhenusingTestMethodD4595foracceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimenswhichareashomogeneousaspossibleandwhicharefromalotofmaterialofthetypeinquestion.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingStudent''st-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforethetestingbegan.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandthesuppliermustagreetointerpretfuturetestresultsinthelightoftheknownbias.Mostgeotextilescanbetestedbythistestmethod.Somemodificationofclampingtechniquesmaybenecessaryforagivengeotextiledependinguponitsstructure.Specialclampingadaptionsmaybenecessarywithstronggeotextilesorgeotextilesmadefromglassfiberstopreventthemfromslippingintheclampsorbeingdamagedasaresultofbeinggrippedintheclamps.Specimenclampingmaybemodifiedasrequiredatthediscretionoftheindividuallaboratoryprovidingarepresentativetensilestrengthisobtained.Inanyevent,theproceduredescribedinSection10ofthistestmethodforobtainingwide-widthstriptensilestrengthmustbemaintained.Thistestmethodisapplicablefortestinggeotextileseitherdryorwet.Itisusedwithaconstantrateofextensiontypetensionapparatus.Theuseoftensilestrengthtestmethodsthatrestricttheclampedwidthdimensionto50mm(2in.)orless,suchastheravel,cutstrip,andgrabtestprocedures,havebeenfoundlesssuitablethanthistestmethodfordeterminingdesignstrengthparametersforsomegeotextiles.Thisisparticularlythecasefornonwovengeotextiles.Thewide-widthstriptechniquehasbeenexploredbytheindustryandisrecommendedinthesecasesforgeotextileapplications.Thistestmethodmaynotbesuitedforsomewovenfabricsusedingeotextileapplicationsthatexhibitstrengthsapproximately100kN/mor600lbf/in.duetoclampingandequipmentlimitations.Inthosecases,100-mm(4-in.)widthspecimensmaybesubstitutedfor200-mm(8-in.)widthspecimens.Onthosefabrics,thecontractioneffectcitedin1.4isminimaland,consequently,thestandardcomparisoncancontinuetobemade.1.1Thistestmethodcoversthemeasurementoftensilepropertiesofgeotextilesusingawide-widthstripspecimentensilemethod.Thistestmethodisapplicabletomostgeotextilesthatincludewovenfabrics,nonwovenfabrics,layeredfabrics,knitfabrics,andfeltsthatareusedforgeotextileapplication.1.2Thistestmethodcoversthemeasurementoftensilestrengthand......
【中国标准分类号】:W59
【国际标准分类号】:59_080_70
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:Metalliccoatings;Electroplatedcoatingsofcadmiumonironorsteel
【原文标准名称】:金属覆盖层钢铁上镉电镀层
【标准号】:ISO2082-1986
【标准状态】:作废
【国别】:国际
【发布日期】:1986-09
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC107
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;规范;测定;分类;镀镉;金属覆层;厚度;金属的;分类系统;粘附;电解镀层;覆层
【英文主题词】:Adhesion;Cadmium;Cadmiumplating;Chromates;Chromating;Chromium;Classification;Classificationsystems;Coatings;Coatingsofcadmium;Corrosion;Corrosionprotection;Corrosiontests;Decorativecoatings;Definition;Definitions;Determination;Dimensions;Electrodeposition;Electroplating;Ferrousmetals;Finishes;Inspection;Iron;Materials;Measurement;Metalcoatings;Metalplating;Metallic;Protectivecoatings;Specifications;Steels;Testing;Tests;Thickness;Zinc;Zinccoatings
【摘要】:Thissecondeditioncancelsandreplacesthefirstedition(i.e.ISO2081:1973).Containsacautionbecausecadmiumistoxic!ISO2082isnotapplicabletocoatingsappliedtosheet,striporwireintheunfabricatedform,toclose-coiledsprings,forotherthanprotectiveordecorativepurposes.Includesinformationtobesuppliedbythepurchasertotheelectroplaterandrequirementsforheattreatment.Coatingthicknessofthreadedcomponents:seeISO4042.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:5P;A4
【正文语种】:英语