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ASTM D882-2010 薄塑料板的抗拉特性的标准试验方法

作者:标准资料网 时间:2024-05-09 17:06:25  浏览:8012   来源:标准资料网
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【英文标准名称】:StandardTestMethodforTensilePropertiesofThinPlasticSheeting
【原文标准名称】:薄塑料板的抗拉特性的标准试验方法
【标准号】:ASTMD882-2010
【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】:D20.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:modulusofelasticity;plasticfilm;plasticsheeting;tensileproperties;tensilestrength;toughness;yieldstress;Plasticsheetandfilm;Tensileproperties/testing--plastics;Thinsheeting;Modulusofelasticity--plastics;Toecompensation;Tou
【摘要】:Tensilepropertiesdeterminedbythistestmethodareofvaluefortheidentificationandcharacterizationofmaterialsforcontrolandspecificationpurposes.Tensilepropertiescanvarywithspecimenthickness,methodofpreparation,speedoftesting,typeofgripsused,andmannerofmeasuringextension.Consequently,whereprecisecomparativeresultsaredesired,thesefactorsmustbecarefullycontrolled.Thistestmethodshallbeusedforrefereepurposes,unlessotherwiseindicatedinparticularmaterialspecifications.Formanymaterials,therecanbeaspecificationthatrequirestheuseofthistestmethod,butwithsomeproceduralmodificationsthattakeprecedencewhenadheringtothespecification.Therefore,itisadvisabletorefertothatmaterialspecificationbeforeusingthistestmethod.Table1inClassificationD4000liststheASTMmaterialsstandardsthatcurrentlyexist.Tensilepropertiescanbeutilizedtoprovidedataforresearchanddevelopmentandengineeringdesignaswellasqualitycontrolandspecification.However,datafromsuchtestscannotbeconsideredsignificantforapplicationsdifferingwidelyfromtheload-timescaleofthetestemployed.Thetensilemodulusofelasticityisanindexofthestiffnessofthinplasticsheeting.Thereproducibilityoftestresultsisgoodwhenprecisecontrolismaintainedoveralltestconditions.Whendifferentmaterialsarebeingcomparedforstiffness,specimensofidenticaldimensionsmustbeemployed.Thetensileenergytobreak(TEB)isthetotalenergyabsorbedperunitvolumeofthespecimenuptothepointofrupture.Insometextsthispropertyhasbeenreferredtoastoughness.Itisusedtoevaluatematerialsthataresubjectedtoheavyabuseorthatcanstallwebtransportequipmentintheeventofamachinemalfunctioninend-useapplications.However,therateofstrain,specimenparameters,andespeciallyflawscancauselargevariationsintheresults.Inthatsense,cautionisadvisedinutilizingTEBtestresultsforend-usedesignapplications.Materialsthatfailbytearinggiveanomalousdatawhichcannotbecomparedwiththosefromnormalfailure.1.1Thistestmethodcoversthedeterminationoftensilepropertiesofplasticsintheformofthinsheetingandfilms(lessthan1.0mm(0.04in.)inthickness).Note18212;FilmisdefinedinTerminologyD883asanoptionaltermforsheetinghavinganominalthicknessnogreaterthan0.25mm(0.010in.).Note28212;Tensilepropertiesofplastics1.0mm(0.04in.)orgreaterinthicknessshallbedeterminedaccordingtoTestMethodD638.1.2Thistestmethodcanbeusedtotestallplasticswithinthethicknessrangedescribedandthecapacityofthemachineemployed.1.3Specimenextensioncanbemeasuredbygripseparation,extensionindicators,ordisplacementofgagemarks.1.4Theprocedurefordeterminingthetensilemodulusofelasticityisincludedatonestrainrate.Note38212;Themodulusdeterminationisgenerallybasedontheuseofgripseparationasameasureofextension;however,thedesirabilityofusingextensometers,asdescribedin5.2,isrecognizedandprovisionfortheuseofsuchinstrumentationisincorporatedintheprocedure.1.5Testdataobtainedbythistestmethodisrelevantandappropriateforuseinengineeringdesign.1......
【中国标准分类号】:G33
【国际标准分类号】:83_140_10
【页数】:10P.;A4
【正文语种】:英语


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【英文标准名称】:EnergyStandardforBuildingsExceptLow-RiseResidentialBuildings
【原文标准名称】:除低层住宅建筑外建筑物的能量标准
【标准号】:ANSI/ASHRAE/IESNA90.1ai-2007
【标准状态】:作废
【国别】:美国
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:建筑物;能量
【英文主题词】:Buildings;Energy
【摘要】:Thisproposedaddendumrevisesthelightingpowerrequirementstoeliminateconfusion.
【中国标准分类号】:P31
【国际标准分类号】:91_120_10
【页数】:
【正文语种】:英语


Product Code:SAE J1362
Title:Graphical Symbols for Operator Controls and Displays on Off-Road Self-Propelled Work Machines
Issuing Committee:Hftc2, Machine Displays And Symbols
Scope:SAE 1362 presents graphical symbols for use on operator controls and other displays on construction, general purpose industrial, agricultural, forestry, and specialized mining categories of off-road, self-propelled work machines as defined in SAE J1116. Symbols for agricultural equipment other than the basic agricultural tractor (for example, combine harvesters, cotton harvesters, forage harvesters, balers and sprayers) are covered by ASAE S304 and are therefore excluded from the scope of SAE J1362.

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