【英文标准名称】:Electricandopticalfibrecables-Testmethodsfornon-metallicmaterials-Part504:Mechanicaltests-Bendingtestsatlowtemperatureforinsulationandsheaths
【原文标准名称】:电气光纤电缆.非金属材料试验方法.第504部分:机械试验.绝缘鞘低温抗弯试验
【标准号】:IEC60811-504-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-03-01
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC20
【标准类型】:()
【标准水平】:()
【中文主题词】:弯曲试验;电缆护套;电缆;包覆材料;软索;电缆线;电线;电气工程;电绝缘材料;玻璃纤维电缆;绝缘电缆;绝缘线;绝缘覆层;绝缘材料;绝缘件;低温;材料试验;材料测试;机械试验;非金属;光波导;合格试验;试验
【英文主题词】:Bendtesting;Cablesheaths;Cables;Claddingmaterials;Cords;Electriccables;Electricalcords;Electricalengineering;Electricalinsulatingmaterials;Glassfibrecables;Insulatedcables;Insulatedcords;Insulatingcoverings;Insulatingmaterials;Insulations;Lowtemperatures;Materialtests;Materialstesting;Mechanicaltesting;Non-metals;Opticalwaveguides;Qualificationtests;Testing
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:29_035_01;29_060_20
【页数】:24P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforLinearDensityofElastomericYarns(ShortLengthSpecimens)
【原文标准名称】:弹性纱线性密度的标准试验方法(短长度样品)
【标准号】:ASTMD2591-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D13.58
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:密度;弹性体;长度;纱
【英文主题词】:elastomericyarn;lineardensity
【摘要】:Thistestmethodisconsideredsatisfactoryforacceptancetestingofcommercialshipmentsbecausecurrentestimatesofbetween-laboratoryprecisionareacceptableandthemethodisusedextensivelyinthetradeforacceptancetesting.5.1.1Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestsshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,usesamplesforsuchcomparativeteststhatareashomogeneousaspossible,drawnfromthesamelotofmaterialasthesamplesthatresultedindisparateresultsduringinitialtesting,andrandomlyassignedinequalnumberstoeachlaboratory.Thetestresultsfromthelaboratoriesinvolvedshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifbiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsforthatmaterialmustbeadjustedinconsiderationoftheknownbias.Lineardensityofelastomericyarnsisusedinsomecalculationsfortensileandelasticproperties.Thetestmethodisbasedonelastomericyarnsinlthex201C;as-producedx201D;condition,butmaybeusedfortreatedelastomericyarnsprovidedthetreatmentisspecified.Themethoddoesnotcovertheremovaloffinishforthedeterminationoflineardensityofx201C;finish-freex201D;elastomericyarns.1.1Thistestmethodcoversthedeterminationofthelineardensityofshortlengthsof"asproduced"elastomericyarnsmadefromrubber,spandexorotherelastomers.Note1Forthedeterminationoflineardensityofelastomericyarnsusingskeins,refertoTestMethodD6717.1.2Thistestmethodisnotapplicabletocovered,wrapped,orcore-spunyarns,oryarnsspunfromelastomericstaple,orelastomericyarnsremovedfromfabrics.1.3Thistestmethodisapplicabletoelastomericyarnshavingarangeof40to3200dtex(36to2900denier).1.4ThevaluesstatedineitherSIunitsorU.S.Customaryunitsaretoberegardedseparatelyasstandard.WithinthetesttheUSCustomaryunitsareinparentheses.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_20
【页数】:5P.;A4
【正文语种】: