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BS ISO 20965-2005 塑料.聚合物熔体瞬态拉伸粘度的测定

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【英文标准名称】:Plastics-Determinationofthetransientextensionalviscosityofpolymermelts
【原文标准名称】:塑料.聚合物熔体瞬态拉伸粘度的测定
【标准号】:BSISO20965-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-04-12
【实施或试行日期】:2005-04-12
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:高聚物;定义;聚合物熔体;粘度;测量技术;粘度测量;塑料;粘度值;试验
【英文主题词】:Definition;Definitions;Measuringtechniques;Plastics;Polymermelt;Polymers;Testing;Viscosity;Viscositymeasurement;Viscositynumbers
【摘要】:ISO20965:2005specifiesthegeneralprinciplesofamethodfordeterminingthetransientextensionalviscosityofpolymermelts.Theproceduredetailsthemeasurementofpolymermeltspecimensstretcheduniaxiallyunderconditionsofconstantstrainrateandconstanttemperature.ThemethodiscapableofmeasuringthetransientextensionalviscosityofpolymermeltsatHenckystrainratestypicallyintherange0,01s-1to1s-1,atHenckystrainsuptoapproximately4andattemperaturesuptoapproximately250°C.Itissuitableformeasuringtransientextensionalviscosityvaluestypicallyintherangefromapproximately104Pa.sto107Pa.s.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:26P;A4
【正文语种】:英语


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【英文标准名称】:StandardGuideforPreparationofaLeakTestingSpecification
【原文标准名称】:泄漏试验规格的准备
【标准号】:ASTME479-1991(2006)
【标准状态】:现行
【国别】:
【发布日期】:1991
【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】:E07.08
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:准备;不渗透性;试验;漏泄试验;指导手册;无损检验;金属
【英文主题词】:
【摘要】:Foranyproducttobetestedthegeometricalcomplexitywillvarywidely.However,thebasicconceptofdetermininganoperativeleakagespecificationregardlessofgeometriesismuchthesameforall,whetheritbesimple,ordinary,orcomplex.ThedatarequiredforwritingtheOS,whichistotalleakage(moles),time(s),andpressuredifferenceacrosstheleak,areeitheravailableorcanbedeterminedbytestsormeasurements.Auserwhoselectsvaluestobeusedinaleakagespecificationasaresultofsomeoneelsehavingusedthevalueorsimplybecauseofprestigereasons,mayfindthevalueorvaluesunsatisfactoryfortheproduct.Aspecificationthatistoorestrictivemayresultinexcessiveleaktestingcosts.Aspecificationthatisnotrestrictiveenoughmayresultinprematureproductfailure,orincreasedwarrantycosts,orboth.Atypicalillustrationfordeterminingaleakagespecification,usingthecomplexgeometryofarefrigerantsystemforanexample,willbeusedthroughoutthisrecommendedguide.Itiswelltopointoutthattheusershouldrealizethatthevaluesandtestmethodsselecteddonotnecessarilyrepresentthebestortypicalonesforthisapplication.1.1Thisstandardisintendedasaguide.Itenumeratesfactorstobeconsideredinpreparingadefinitivespecificationformaximumpermissiblegasleakageofacomponent,device,orsystem.Theguiderelatesandprovidesexamplesofdataforthepreparationofleaktestingspecifications.Itisprimarilyapplicableforuseinspecifyinghalogenleaktestingmethods.1.2Twotypesofspecificationsaredescribed:1.2.1Operationalspecifications(OS),and1.2.2Testingspecifications(TS):Total,andEachleak.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H20
【国际标准分类号】:77_040_99
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Leather-Physicalandmechanicaltests-Determinationofwaterrepellencyofgarmentleather
【原文标准名称】:皮革.物理和机械试验.外衣皮革的防水性测定
【标准号】:BSEN14340-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2004-03-12
【实施或试行日期】:2004-03-12
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:样品;试样;材料试验;机械试验;衣服;皮革;特性;物理试验;人造革;皮革制品;试样制备;定义;试验设备;外衣皮革;皮革服装;喷雾试验;抽样方法;试验;疏水材料;拒水性
【英文主题词】:Clothing;Definition;Definitions;Garmentleather;Hydrophobicmaterials;Leather;Leatherclothing;Leatherproducts;Leathercloth;Materialstesting;Mechanicaltesting;Physicaltesting;Properties;Samplingmethods;Specimenpreparation;Specimens;Spraytests;Testequipment;Testspecimens;Testing;Waterrepellency
【摘要】:ThisEuropeanStandardspecifiesamethodfordeterminingtherepellancyofleathertosurfacewetting.Itisapplicabletoallleathersintendedforuseinclothing.Themethoddoesnotdeterminetheresistanceofleathertowaterpenetration.
【中国标准分类号】:Y45
【国际标准分类号】:59_140_30
【页数】:14P;A4
【正文语种】:英语