【英文标准名称】:Rubber,vulcanizedorthermoplastic-Determinationofhardness(hardnessbetween10IRHDand100IRHD)(ISO48:2007);EnglishversionofDINISO48:2009-10
【原文标准名称】:硫化或热塑橡胶.硬度的测定(硬度在10IRHD至100IRHD之间)(ISO48:2007),DINISO48:2009-10的英文版本
【标准号】:DINISO48-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Definitions;Elastomers;Hardness;Hardnessmeasurement;Hardnesstests;IRHD;Materialstesting;Measurement;Measuringinstruments;Measuringtechniques;Methods;Microhardness;Microhardnesstesting;Rubber;Testequipment;Testspecimens;Testing;Thermoplasticpolymers;Vulcanizedrubber
【摘要】:1.1GeneralThisInternationalStandardspecifiesfourmethodsforthedeterminationofthehardnessofvulcanizedorthermoplasticrubbersonflatsurfaces(standard-hardnessmethods)andfourmethodsforthedeterminationoftheapparenthardnessofcurvedsurfaces(apparent-hardnessmethods).Thehardnessisexpressedininternationalrubberhardnessdegrees(IRHD).Themethodscoverthehardnessrangefrom10IRHDto100IRHD.Themethodsdifferprimarilyinthediameteroftheindentingballandthemagnitudeoftheindentingforce,thesebeingchosentosuittheparticularapplication.TherangeofapplicabilityofeachmethodisindicatedinFigure1.ThedeterminationofhardnessbyapockethardnessmeterisdescribedinISO7619-2.1.2Standard-hardnessmethodsMethodN:Normaltest--Thismethodisappropriateforrubberswithahardnessintherange35IRHDto85IRHD,butmayalsobeusedforhardnessesintherange30IRHDto95IRHD.MethodH:High-hardnesstest--Thismethodisappropriateforrubberswithahardnessintherange85IRHDto100IRHD.MethodL:Low-hardnesstest--Thismethodisappropriateforrubberswithahardnessintherange10IRHDto35IRHD.MethodM:Microtest--Thismethodisessentiallyascaled-downversionofthenormaltestmethodN,permittingthetestingofthinnerandsmallertestpieces.Itisappropriateforrubberswithahardnessintherange35IRHDto85IRHD,butmayalsobeusedforhardnessesintherange30IRHDto95IRHDNOTE1ThevalueofthehardnessobtainedbymethodNwithintherangesfrom85IRHDto95IRHDandfrom30IRHDto35IRHDmaynotagreepreciselywiththatobtainedusingmethodHormethodL,respectively.Thedifferenceisnotnormallysignificantfortechnicalpurposes.NOTE2Becauseofvarioussurfaceeffectsintherubberandthepossibilityofslightsurfaceroughness(produced,forexample,bybuffing),themicrotestmaynotalwaysgiveresultsagreeingwiththoseobtainedbythenormaltest.1.3Apparent-hardnessmethodsAlsospecifiedarefourmethods.CNCH.CLandCM,forthedeterminationoftheapparenthardnessofcurvedsurfaces.ThesemethodsaremodificationsofmethodsN,H,LandM.respectively,forcaseswheretherubbersurfacetestediscurved.Twocasesexist,dependingwhethera)thetestpieceorproducttestedislargeenoughforthehardnessinstrumenttorestuponit;b)itissmallenoughforboththetestpieceandtheinstrumenttorestuponacommonsupport.Avariantofb)wouldbewherethetestpiecerestsonthespecimentableoftheinstrumentApparenthardnesscanalsobemeasuredannon-standardflattestpiecesusJngmethodsN,H,LandM.Theproceduresdescribedcannotprovideforallpossibleshapesanddimensionsoftestpiece,butcoversomeofthecommonesttypes,suchasO-ringsDeterminationoftheapparenthardnessofrubber-coveredrollersisdealtwithseparatelyinthevariouspartsofISO7267
【中国标准分类号】:G35
【国际标准分类号】:83_060
【页数】:23P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 地质仪器产品图样及技术文件 更改方法 |
| 中标分类： |
仪器、仪表 >>
仪器、仪表综合 >>
技术管理 |
| 发布日期： | |
| 实施日期： | 1998-07-20 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 3页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 仪器 仪表 仪器 仪表综合 技术管理