BS EN ISO 8067-1995 软泡沫聚合材料.抗撕裂强度测定
时间:2024-05-02 15:43:42 来源: 标准资料网 作者：标准资料网 阅读：9597
【英文标准名称】:Flexiblecellularpolymericmaterials-Determinationoftearstrength
【原文标准名称】:软泡沫聚合材料.抗撕裂强度测定
【标准号】:BSENISO8067-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-08-15
【实施或试行日期】:1995-08-15
【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】:扯裂试验;泡沫橡胶;塑料;多孔材料;高聚物;试样制备;试样;机械试验;柔性材料
【英文主题词】:Determination;Flexiblematerials;Foamedrubber;Materialstesting;Plastics;Polymers;Rubber;Rubbertechnology;Tearpropagationtests;Tearstrength;Teartests;Testing;Vulcanizedrubber
【摘要】:ThisInternationalStandardspecifiesamethodforthedeter-minationofthetearstrengthofflexiblecellularpolymericmaterialshavingathicknessofmorethan24,0mm.Thepro-ceduredescribedproducesavaluewhichmayberegardedasameasureofthetearresistanceoffoamundertheconditionsofthisparticulartest.
【中国标准分类号】:G33
【国际标准分类号】:83_100
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminationofUraniumorPlutoniumIsotopicCompositionorConcentrationbytheTotalEvaporationMethodUsingaThermalIonizationMassSpectrometer
【原文标准名称】:用热电离质谱分光计通过总数蒸发法测定铀或钚同位素组成或浓度的标准试验方法
【标准号】:ASTMC1672-2007
【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】:C26.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:组分;浓缩;测定;蒸发;裂变材料;电离;同位素;质谱学;钚;分光计;测试;热的;铀
【英文主题词】:atompercent;isotopedilutionmassspectrometry;isotopiccomposition;massfractionation;plutonium;thermalionizationmassspectrometry;totalevaporation;uranium;weightpercent
【摘要】:1.1Thismethoddescribesthedeterminationoftheisotopiccompositionand/ortheconcentrationofuraniumandplutoniumasnitratesolutionsbythethermalionizationmassspectrometric(TIMS)totalevaporationmethod.Purifieduraniumorplutoniumnitratesolutionsareloadedontoadegassedmetalfilamentandplacedinthemassspectrometer.Undercomputercontrol,ioncurrentsaregeneratedbyheatingofthefilament(s).Theionbeamsarecontinuallymeasureduntilthesampleisexhausted.Themeasuredioncurrentsareintegratedoverthecourseoftherun,andnormalizedtoareferenceisotopeioncurrenttoyieldisotopicratios.1.2Inprinciple,thetotalevaporationmethodshouldyieldisotopicratiosthatdonotrequiremassbiascorrection.Inpractice,somesamplesmayrequirethisbiascorrection.WhencomparedtotheconventionalTIMSmethod,thetotalevaporationmethodisapproximatelytwotimesfaster,improvesprecisionfromtwotofourfold,andutilizessmallersamplesizes.1.3Thetotalevaporationmethodmayleadtobiasesinminorisotoperatiosduetopeaktailingfromadjacentmajorisotopes,dependingonsamplecharacteristics.Theuseofanelectronmultiplierequippedwithanenergyfiltermayeliminateordiminishpeaktailingeffects.Measurementofinstrumentabundancesensitivitymaybeusedtoensurethatsuchbiasesarenegligible,ormaybeusedtobiascorrectminorisotoperatios.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:F46
【国际标准分类号】:27_120_30
【页数】:10P.;A4
【正文语种】:
【英文标准名称】:TestMethodforHydroquinoneinVinylAcetate
【原文标准名称】:乙酸乙烯酯中氢醌的试验方法
【标准号】:ASTMD2193-1989
【标准状态】:作废
【国别】:美国
【发布日期】:1989
【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】:油性涂料;溶剂;试验;芳族化合物;氢醌;涂料;芳烃;含量测定;乙酸乙烯酯
【英文主题词】:aromatichydrocarbons;vinylacetate;solvents;aromaticcompounds;testing;paints;hydroquinone;oilpaints;determinationofcontent
【摘要】:
【中国标准分类号】:G17
【国际标准分类号】:71_080_70
【页数】:2P;A4
【正文语种】:英语