NF P21-377-1999 木质结构.试验方法.木制紧固件的耐拆卸性能
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【英文标准名称】:Timberstructures-Testmethods-Withdrawalcapacityoftimberfasteners.
【原文标准名称】:木质结构.试验方法.木制紧固件的耐拆卸性能
【标准号】:NFP21-377-1999
【标准状态】:现行
【国别】:法国
【发布日期】:1999-12-01
【实施或试行日期】:1999-12-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:谁边;卡箍;连接件;定义;耐干燥;紧固件;连接;荷载能力;钉子;螺钉;实心木块;材料强度;符号;试验;试验条件;木构件接头;木结构;耐拆卸能力;木材;木质板材
【英文主题词】:
【摘要】:
【中国标准分类号】:P23
【国际标准分类号】:91_080_20
【页数】:13P;A4
【正文语种】:其他
【英文标准名称】:Petroleumproductsandcrudepetroleum-Determinationofvapourpressure-Reidmethod
【原文标准名称】:石油产品和原油蒸气压的测定雷德法
【标准号】:ISO3007-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-10
【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/TC28
【标准类型】:()
【标准水平】:()
【中文主题词】:物理试验;试验;试验;石油产品;定义;瑞德法;蒸气压力;测定
【英文主题词】:Definitions;Determination;Petroleumproducts;Physicaltesting;Reid;Testing;Tests;Vapourpressure
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationofthevapourpressureofliquidpetroleumproductsconsistingofessentiallyorwhollyofhydrocarboncomponents,orcontainingoxygenatedhydrocarbonsofspecifictypesandatspecifiedmaximumconcentrations.Themethoddoesnotapplyoutsidetheseconcentrationlevels,nortoanyblendscontainingmethanolorotheroxygenatedhydrocarbonsnotcoveredinnote1.NOTE1Themaximumconcentrationofetherscontaining5ormorecarbonatomsis15%(V/V),andforethanolis10%(V/V).Forhigheralcohols,themaximumconcentrationis7%(V/V).NOTE2ForthepurposesofthisInternationalStandard,theterm"%(V/V)"isusedtorepresentthevolumefractionofamaterial.Forpetroleumproductscontainingmethanol,orotheroxygenatedhydrocarbonsoutsidethescopeofnote1,adryvapour-pressuretestmethodshouldbeused.Forliquefiedpetroleumgases,ISO4256shouldbeused.Thetestmethodmaybeappliedtovolatilecrudepetroleumwithavapourpressureexceeding10kPa,althoughtheprecisionhasnotbeenevaluated.FourproceduresaredescribedinthisInternationalStandard.ProceduresAandBarealternativeapparatusconfigurationsforproductswithaReidvapourpressureupto180kPa,ProcedureCisappliedtoliquidproductswithaReidvapourpressureabove180kPa,andProcedureDappliestoaviationgasolineswithaReidvapourpressureofapproximately50kPa.Vapourpressureisanimportantphysicalpropertyofvolatileliquids,andhascriticalperformanceimplicationsforautomotiveandaviationgasolines.Vapourpressureisalsooneofthepropertiesaffectingatmosphericevaporation,andisthereforeincreasinglyusedinregulationsrelatingtoemissionsandairqualitycontrol.Vapourpressureisalsoacriticalpropertylimitingtheperformanceandsafetyofoperationofequipmentduringtransferoperations.NOTEBecausetheexternalatmosphericpressureiscounteractedbytheatmosphericpressureinitiallyinthevapourchamber,theReidvapourpressureisapproximatelythe"absolute"vapourpressureat37,8℃.TheReidvapourpressurediffersfromthetruevapourpressureofthesampleowingtoslightvaporizationofthesampleandthepressureofwatervapourandairintheconfinedspace.
【中国标准分类号】:E30
【国际标准分类号】:75_040;75_080
【页数】:17P;A4
【正文语种】:英语
【英文标准名称】:Radiofrequencycables1,6/6,4,coaxial,withsoliddielectric,highflexible
【原文标准名称】:全绝缘高柔性同轴高频电缆.1.6/6.4.Z=60Ω
【标准号】:DIN47366-1971
【标准状态】:作废
【国别】:德国
【发布日期】:1971-07
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:同轴;射频;高频;挠性;数据;电气工程;电缆
【英文主题词】:cables;radiofrequency;electricalengineering;highfrequencies;flexibility;data;coaxial
【摘要】:
【中国标准分类号】:L91
【国际标准分类号】:1610
【页数】:2P;A4
【正文语种】:德语
