【英文标准名称】:Materialsforprintedboardsandotherinterconnectingstructures-Reinforcedbasematerials,cladandunclad-Modifiednon-halogenatedepoxidewovenE-glasslaminatedsheetsofdefinedflammability(verticalburningtest),copper-clad
【原文标准名称】:印制板和其他互连结构用材料.包被和非包被增强基材.阻燃型(垂直燃烧试验)铜包被的改良的非卤化环氧编织E型玻璃纤维层压板
【标准号】:BSEN61249-2-22-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-08-24
【实施或试行日期】:2005-08-24
【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】:无卤素;聚酰亚胺;基底材料;导电材料;薄板材;导电体;叠层板材;互连结构;印制电路;包装件;覆铜的;分规范;印制电路板;玻璃布;E型玻璃纤维;样品;增强的材料;电导性;加标签;可燃性试验;环氧衍生物;非电子的;覆层焊道;试验;尺寸;材料;特性;可燃性;质量保证;规范(验收);层压薄板;环氧树脂;检验;电气工程
【英文主题词】:Basematerials;Combustibility;Combustibilitytests;Conductivematerials;Conductivity;Copper-clad;Coverpass;Dimensions;E-glass;Electricconductors;Electricalengineering;Epoxides;Epoxyresins;Glassfabrics;Halogen-free;Inspection;Interconnectionstructures;Labelling;Laminatedsheets;Laminates;Materials;Non-electrical;Packages;Polyimides;Printedcircuits;Printed-circuitboards;Properties;Qualityassurance;Reinforcedmaterials;Sectionalspecification;Sheets;Specification(approval);Specimens;Testing
【摘要】:ThispartofIEC61249givesrequirementsforpropertiesofmodifiednon-halogenatedepoxidewovenE-glasslaminatedsheet0,05mmupto3,2mm,ofdefinedflammability(verticalburningtest),copper.-clad.Theflammabilityratingisachievedthroughtheuseofphosphoruscompoundsand/oraluminiumhydroxidefireretardantscontainedaspartofthepolymericstructure.Theglasstransitiontemperatureisdefinedtobebetween1505Cto190>C.Somepropertyrequirementsmayhaveseveralclassesofperformance.Theclassdesiredshouldbespecifiedonthepurchaseorder,otherwisethedefaultclassofmaterialwillbesupplied.
【中国标准分类号】:L30
【国际标准分类号】:13_220_40;31_180
【页数】:28P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 等离子弧切割机 |
| 中标分类： |
机械 >>
通用加工机械与设备 >>
焊接与切割设备 |
| 替代情况： | 被JB/T 2751-93代替 |
| 发布日期： | |
| 实施日期： | 1992-07-01 |
| 首发日期： | |
| 作废日期： | 1994-01-01 |
| 出版日期： | |
适用范围
没有内容
前言
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目录
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引用标准
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所属分类： 机械 通用加工机械与设备 焊接与切割设备
【英文标准名称】:Naturalgas-Calculationofcompressionfactor-Part1:Introductionandguidelines
【原文标准名称】:天然气.压缩因子的计算.第1部分:介绍和指南
【标准号】:ISO12213-1-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-11
【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/TC193
【标准类型】:()
【标准水平】:()
【中文主题词】:计算方法;压缩气体;压缩;浓度(化学);团料;定义;混合气体;一般条件;材料试验;数学计算;天然气;实际油气比
【英文主题词】:Calculatingmethods;Compacting;Compressedgas;Compression;Concentration(chemical);Conglomerates;Definitions;Entries;Gasmixtures;Generalconditions;Materialstesting;Mathematicalcalculations;Naturalgas;Realgasfactors
【摘要】:ISO12213specifiesmethodsforthecalculationofcompressionfactorsofnaturalgases,naturalgasescontainingasyntheticadmixtureandsimilarmixturesatconditionsunderwhichthemixturecanexistonlyasagas.Itisdividedintothreeparts:thispartofISO12213givesanintroductionandprovidesguidelinesforthemethodsofcalculationdescribedinISO12213-2andISO12213-3.Part2givesamethodforusewherethedetailedmolarcompositionofthegasisknown.Part3givesamethodforusewherealessdetailedanalysis,comprisingsuperiorcalorificvalue(volumetricbasis),relativedensity,carbondioxidecontentand(ifnon-zero)hydrogencontent,isavailable.Bothmethodsareapplicabletodrygasesofpipelinequalitywithintherangeofconditionsunderwhichtransmissionanddistribution,includingmeteringforcustodytransferorotheraccountingpurposes,arenormallycarriedout.Ingeneral,suchoperationstakeplaceattemperaturesbetweenabout263Kand338K(approximately-10℃to65℃)andpressuresnotexceeding12MPa(120bar).Withinthisrange,theuncertaintyofpredictionofbothmethodsisabout0,1％providedthattheinputdata,includingtherelevantpressureandtemperature,havenouncertainty.ThemethodgiveninPart2isalsoapplicable(withincreaseduncertainty)tobroadercategoriesofnaturalgas,includingwetorsourgases,withinawiderrangeoftemperaturesandtohigherpressure,forexampleforreserviororundergroundstorageconditionsorforvehicular(NGV)applications.ThemethodgiveninPart3isapplicabletogaseswithahighercontentofnitrogen,carbondioxideorethanethannormallyfoundinpipelinequalitygas.Themethodmayalsobeappliedoverwiderrangesoftemperatureandpressurebutwithincreaseduncertainty.Forthecalculationmethodsdescribedtobevalid,thegasmustbeaboveitswaterandhydrocarbondewpointsattheprescribedconditions.ThisInternationalStandardgivesalloftheequationsandnumericalvaluesneededtoimplementbothmethod.Itisplannedtomakeverifiedcomputerprogramsavailable(seeAnnexB).
【中国标准分类号】:E24
【国际标准分类号】:75_060
【页数】:13P;A4
【正文语种】:英语