DIN EN ISO 11758-1997 橡胶和塑料软管.氙弧灯曝光.颜色和外观变化
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【英文标准名称】:Rubberandplasticshoses-Exposuretoaxenonarclamp-Determinationofchangesincolourandappearance(ISO11758:1995);GermanversionENISO11758:1997
【原文标准名称】:橡胶和塑料软管.氙弧灯曝光.颜色和外观变化
【标准号】:DINENISO11758-1997
【标准状态】:作废
【国别】:德国
【发布日期】:1997-10
【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】:塑料软管线;试验设备;柔性管;塑料;试验;彩色稳定性;软管组件;塑料软管;橡胶软管;光源;颜色;人工照明;硫化橡胶;实验室试验;外观;氙弧灯
【英文主题词】:Appearance;Artificiallighting;Colour;Colourstability;Flexiblepipes;Hoseassemblies;Laboratorytesting;Lightsources;Plastics;Plasticshose;Plasticshoselines;Rubberhoses;Testequipment;Testing;Vulcanizedrubber;Xenonarclamps
【摘要】:Thedocumentspecifiesamethodforexposingrubberandplasticshosestoalaboratorylightsourceforthepurposeofevaluationthechangesincolourandappearanceproducedbysuchexposure.
【中国标准分类号】:G34
【国际标准分类号】:23_040_70
【页数】:10P.;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodsforMeasurementofElectricalPerformanceandSpectralResponseofNonconcentratorMultijunctionPhotovoltaicCellsandModules
【原文标准名称】:无聚集器多结光电池和组件的电性能和光谱灵敏度测量的标准试验方法
【标准号】:ASTME2236a-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:光谱的;电性能;反应;性能;光伏电池;测量
【英文主题词】:electricalproperties;performance;measurement;response;spectral;photovoltaiccells
【摘要】:
【中国标准分类号】:L54
【国际标准分类号】:27_160
【页数】:5P;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforDeterminingDegradationEndPointinDegradablePolyethyleneandPolypropyleneUsingaTensileTest
【原文标准名称】:用拉伸试验对聚乙烯和聚丙烯老化过程的最终老化点的测定的标准实施规程
【标准号】:ASTMD3826-1998(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:D20.96
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:brittlepoint;degradableplastics;plastics;polyethylene/polypropylenefilms/sheeting;tensileelongation;Brittlepoint;Degradableplastics;Degradation--plastics;Polyethylene(PE)sheetandfilm;Polypropylene(PP);Tensileproperties/testing--p
【摘要】:Thetensileelongationpropertydeterminedbythispracticeisofvalueforthecharacterizationofdegradablematerials.Thetensileelongationpropertymayvarywithspecimenthickness,methodofpreparation,speedoftesting,typeofgripsused,andmannerofmeasuringtestextension.Consequently,whereprecisecomparativeresultsaredesired,thesefactorsmustbecarefullycontrolled.Thetensileelongationpropertymaybeutilizedtoprovidedataforresearchanddevelopmentandengineeringdesignaswellasqualitycontrolspecifications.However,datafromsuchtestscannotbeconsideredsignificantforapplicationsdifferingwidelyfromtheload-timescaleofthetestemployed.Materialsthatfailbytearinggiveanomalousdatathatcannotbecomparedwiththosefromnormalfailure.Beforeproceedingwiththistestmethod,referenceshouldbemadetothespecificationsofthematerialbeingtested.Anytestspecimenpreparation,conditioning,dimensions,ortestingparametersoracombinationthereof,coveredinthematerialspecificationsshalltakeprecedenceoverthosementionedinthistestmethod.Iftherearenomaterialspecifications,thenthedefaultconditionsapply.1.1Thispracticecoversthedeterminationofadegradation-endpoint(abrittlepoint)fordegradablepolyethylene/polypropylenefilmsandsheetinglessthan1.0mm(0.04in.)thick.Thispracticeisnotintendedfordeterminationoftherateofdegreeofdegradationofapolyethylene/polypropylenefilmorsheet,butrather,toassesswheninthecourseofitsdegradationundersomecondition,abrittlepointisreached.Ifonewishestomonitortensileelongationduringthedegradationprocess(suchaswhenthetensileelongationissignificantlygreaterthan5%),TestMethodD882isrecommended.Thispracticeshouldnotbeconsideredtheonlywayofdeterminingadegradation-endpoint.1.2Tensilepropertiesofplastics1.0mm(0.04in.)orgreaterinthicknessshallbedeterminedinaccordancewithTestMethodD638.1.3Useastaticweighing-constantrateofgripseparationtest.Thisprocedureemploysaconstantrateofseparationofthegripsholdingthesampleandastaticloadcell.Note18212;Thisprocedureisbasedontheuseofgripseparationasameasureofextension;however,thedesirabilityofusingextensionindicatorsaccuratetox00B1;1.0%orbetterasspecifiedinTestMethodD638isrecognized,andaprovisionfortheuseofsuchinstrumentationisincorporatedintheprocedure.1.4Thisprocedurehasbeensuccessfulfordeterminingthedegradationendpointofethylene-carbon-monoxidecopolymersandhasscreenedsuccessfullytwootheradditive-typepolyethylenesinaroundrobintest.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.7ThereisnoequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_20
【页数】:4P.;A4
【正文语种】:英语
