【英文标准名称】:Materialsforprintedboardsandotherinterconnectingstructures-Part2-8:Reinforcedbasematerialscladandunclad;Modifiedbrominatedepoxidewovenfiberglassreinforcedlaminatedsheetsofdefinedflammability(verticalburningtest),copper-clad
【原文标准名称】:印制板和其它互连结构用材料.第2-8部分:包被和非包被增强基材.规定了易燃性的包铜改良溴化环氧编织玻璃纤维增强层压板(垂直燃烧试验)
【标准号】:IEC61249-2-8-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-02
【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/TC91
【标准类型】:()
【标准水平】:()
【中文主题词】:分规范;印制电路;电气工程;覆铜的;包装件;互连结构;环氧树脂;尺寸;基底材料;层压薄板;可燃性;检验;玻璃布;印制电路板;增强的材料;特性;电导性;玻璃纤维;环氧衍生物;质量保证;试验;可燃性试验;薄板材;导电体;导电材料
【英文主题词】:Basematerials;Burningtests;Combustibility;Combustibilitytests;Conductivematerials;Conductivity;Copper-clad;Dimensions;Electricconductors;Electricalengineering;Electricalproperties;Epoxides;Epoxyresins;Glassfabrics;Glassfibres;Inspection;Interconnectionstructures;Laminatedsheets;Non-electrical;Packages;Printedcircuits;Printed-circuitboards;Properties;Qualityassurance;Reinforcedmaterials;Sectionalspecification;Sheets;Testing
【摘要】:GivesrequirementsforpropertiesofmodifiedbrominatedepoxidewovenE-glassreinforcedlaminatesheetsofdefinedflammability,copper-cladinthicknessesof0,05mmupto3,2mm.Theflammabilityratingisachievedthroughtheuseofbrominatedfire
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:54P.;A4
【正文语种】:英语


【英文标准名称】:Rubber,vulcanizedorthermoplastic-Determinationofcompressionset-Part1:Atambientorelevatedtemperatures
【原文标准名称】:硫化或热塑性橡胶.压缩永久变形的测定.第1部分:室温或更高温度
【标准号】:ISO815-1-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-02
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC45
【标准类型】:()
【标准水平】:()
【中文主题词】:室温;压缩永久变形;压缩测试;压缩试验;测定;弹性体;材料测试;测量;塑料;特性;橡胶;应变;温度;测试;测试条件;热塑性聚合物;硫化橡胶
【英文主题词】:Ambienttemperature;Compressionset;Compressiontesting;Compressiontests;Determination;Elastomers;High-temperaturetesting;Materialstesting;Measurement;Plastics;Properties;Rubber;Strain;Temperature;Temperaturemeasurement;Testing;Testingconditions;Thermoplasticpolymers;Vulcanizedrubber
【摘要】:ThispartofISO815specifiesmethodsforthedeterminationofthecompressionsetcharacteristicsofvulcanizedandthermoplasticrubbersatambientorelevatedtemperatures.Themethodsareintendedtomeasuretheabilityofrubbersofhardnesswithintherange10IRHDto95IRHDtoretaintheirelasticpropertiesatspecifiedtemperaturesafterprolongedcompressionatconstantstrain(normally)underoneofthealternativesetsofconditionsdescribed.Forrubberofnominalhardness80IRHDandabove,alowercompressionstrainisused:foranominalhardnessfrom80IRHDto89IRHDandforanominalhardnessfrom90IRHDto95IRHD.NOTE1Whenrubberisheldundercompression,physicalorchemicalchangescanoccurthatpreventtherubberreturningtoitsoriginaldimensionsafterreleaseofthedeformingforce.Theresultisaset,themagnitudeofwhichdependsonthetimeandtemperatureofcompressionaswellasonthetimeandtemperatureofrecovery.Atelevatedtemperatures,chemicalchangesbecomeincreasinglymoreimportantandleadtoapermanentset.NOTE2Short-timecompressionsettests,typicallyfor,atelevatedtemperaturesarecommonlyusedasameasureofthestateofcure,ameansofmaterialclassificationandaspecificationtoensurethequalityofacompound.Longertests,typicallyfor,atelevatedtemperaturestakeaccountoftheeffectofageingandareoftenusedtopredictserviceperformance,includingthatofsealingmaterials.Short-timetestsatambienttemperatureshowmainlytheeffectofphysicalchanges(re-orientationofthemolecularchainsandthefillers).
【中国标准分类号】:G34
【国际标准分类号】:83_060
【页数】:10P;A4
【正文语种】:英语