标准资料网-标准资料免费资源平台

【英文标准名称】:StandardTestMethodsforMulti-ModalStrengthTestingofAutohesives(ContactAdhesives)
【原文标准名称】:胶粘剂(压敏胶粘剂)多重强度试验的标准试验方法
【标准号】:ASTMD1995-1992(2011)
【标准状态】:现行
【国别】:
【发布日期】:1992
【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】:D14.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:自粘剂;劈裂;登高鼓皮;压缩切变;T-剥落;分裂测试;抗压试验-粘合剂;接触型胶粘剂
【英文主题词】:autohesive;cleavage;climbingdrumpeel;compressionshear;T-peel;Cleavagetesting;Compressiontesting--adhesives;Contactadhesives
【摘要】:Theapplicationproceduresinthesetestmethodsyieldfilmsfreeoftheirregularities,artifacts,andvariationsinherentinbrushing,spraying,ortrowelling.Accordingly,thesetestmethodsmeasurethestrengthofautohesivebondsbetweentwoautohesivefilmswhosetopographyischaracteristicoftheautohesiveitselfratherthantheartifactsoftheapplicationprocedure.Itisrecommendedthatthisinformationbeconsideredinextrapolatingresultsfromthesetestmethods.Themagnitudeofthemeasuredbondstrengthsalsodependsonotherfactorssuchasfilmthickness,themannerinwhichpressureisapplied,themagnitudeanddurationoftheapplicationofpressure,andthetemperatureandhumidityatvariousstagesofthetest.Accordingly,theseparametersshouldbechoseninamannerconsistentwiththeenduseoftheautohesive.Incaseofadisputearisingfromdifferencesinreportedresultswhenusingthesetestmethodsforacceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodiagnosethecausesforlackofrepeatabilitybetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofprecision.Asaminimum,thetwopartiesshouldselectagroupoftestspecimensandvisuallyexaminetheirfailuremodes.TheaverageresultsfromthetwolaboratoriesshouldthenbecomparedusingStudent''st-testforunpaireddataandanacceptableprobabilitylevelshouldbechosenbythetwopartiesbeforetestingisbegun.1.1Thesetestmethodscoverproceduresbywhichautohesivescanbetestedinfourcommonlypracticedstressingmodes,namely:compressionshear,cleavage,climbingdrumpeel,andT-peel,andinvariouscombinationsofrigid-to-rigid,flexible-to-rigid,andflexible-to-flexibleadherendsthatincludewood,aluminum,steelflakeboard,andplasticlaminates.Quantitativetestmethodsthatinvolvebondformationbyimpactarealsoprovided.Threepressuremodesareprovided:static,roller,andimpact.Becausetherearemanytypesofcontactadhesivesbeingusedtobondmanydifferentmaterialsunderwidelydifferingconditions,thesetestmethodsaredesignedtoallowtheusertoselectthetestmode,coatingthickness,temperatureandrelativehumidityconditions,pressuremagnitudeandmode,opentime,andbond-conditioningtime.1.1.1Thebond-formationprocessusedwithautohesivesisunlikethatofallotheradhesivesandinconsequence,testingofautohesivesrequiresmethodsthatareunlikethoseprovidedbyotherASTMstandards.SeeAnnexA1.1.2Achoiceofadherendsisavailableineachtestmode.ThecombinationofadherendsthatcanbebondedtogetherislimitedtothoseshowninAppendixX1.1.3Methodsforapplicationofpressureareavailableineachtestmode.Foraparticularcombinationofsubstrates,themeansavailableforapplicationofpressurearelimitedtothoseshowninAppendixX2.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificprecautionarystatementsaregivenin7.5.
【中国标准分类号】:G38
【国际标准分类号】:
【页数】:12P.;A4
【正文语种】:


Product Code:SAE J592
Title:Sidemarker Lamps for Use on Road Vehicles Less than 2032 mm in Overall Width
Issuing Committee:Signaling And Marking Devices Stds Comm
Scope:This SAE Standard provides test procedures, requirements, and guidelines for sidemarker lamps for vehicles less than 2032 mm in overall width.