IEC/TS 60695-11-40-2002 着火危险试验.第11-40部:试验火焰.认可试验.指导

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【英文标准名称】:Coveredelectrodesformanualmetalarcwelding.Procedureforthedepositionofweldmetal.Hardnesstests.
【原文标准名称】:手工电弧焊用药皮金属焊条.熔融金属沉积硬度试验
【标准号】:NFA81-303-1989
【标准状态】:作废
【国别】:法国
【发布日期】:1989-09-01
【实施或试行日期】:1989-09-20
【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】:填充金属;尺寸;合金钢;电焊;钢;电焊条;焊接金属;手工金属极电弧焊;金属弧焊;氧化皮;硬度试验;人力驱动装置;涂剂焊条;焊接接头
【英文主题词】:
【摘要】:
【中国标准分类号】:J33
【国际标准分类号】:25_160_20
【页数】:7P;A4
【正文语种】:其他


【英文标准名称】:StandardTestMethodforDensity,RelativeDensity(SpecificGravity),orAPIGravityofCrudePetroleumandLiquidPetroleumProductsbyHydrometerMethod
【原文标准名称】:比重计法测定原油和液态石油产品的密度、相对密度和API燃油比重
【标准号】:ASTMD1298-1999(2005)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D02.02.0A
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:绝缘液体;密度;电气保护设备;液体;润滑剂;电气工程;石油产品;电绝缘;绝缘;原油;试验
【英文主题词】:APIgravity;crudepetroleum;density;hydrometer;PetroleumMeasurementTables;petroleumproducts;relativedensity;specificgravity
【摘要】:Accuratedeterminationofthedensity,relativedensity(specificgravity),orAPIgravityofpetroleumanditsproductsisnecessaryfortheconversionofmeasuredvolumestovolumesormasses,orboth,atthestandardreferencetemperaturesduringcustodytransfer.Thistestmethodismostsuitablefordeterminingthedensity,relativedensity(specificgravity),orAPIgravityoflowviscositytransparentliquids.Thistestmethodcanalsobeusedforviscousliquidsbyallowingsufficienttimeforthehydrometertoreachequilibrium,andforopaqueliquidsbyemployingasuitablemeniscuscorrection.Whenusedinconnectionwithbulkoilmeasurements,volumecorrectionerrorsareminimizedbyobservingthehydrometerreadingatatemperatureclosetothatofthebulkoiltemperature.Density,relativedensity(specificgravity),orAPIgravityisafactorgoverningthequalityandpricingofcrudepetroleum.However,thispropertyofpetroleumisanuncertainindicationofitsqualityunlesscorrelatedwithotherproperties.Densityisanimportantqualityindicatorforautomotive,aviationandmarinefuels,whereitaffectsstorage,handlingandcombustion.1.1Thistestmethodcoversthelaboratorydeterminationusingaglasshydrometer,ofthedensity,relativedensity(specificgravity),orAPIgravityofcrudepetroleum,petroleumproducts,ormixturesofpetroleumandnonpetroleumproductsnormallyhandledasliquids,andhavingaReidvaporpressureof101.325kPa(14.696psi)orless.1.2Valuesaremeasuredonahydrometerateitherthereferencetemperatureoratanotherconvenienttemperature,andreadingscorrectedtothereferencetemperaturebymeansofthePetroleumMeasurementTables;valuesobtainedatotherthanthereferencetemperaturebeinghydrometerreadingsandnotdensitymeasurements.1.3Valuesdeterminedasdensity,relativedensity,orAPIgravitycanbeconvertedtoequivalentvaluesintheotherunitsatalternatereferencetemperaturesbymeansofthePetroleumMeasurementTables.1.4AnnexA1containsaprocedureforverifyingorcertifyingtheequipmentforthistestmethod.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_040;75_080
【页数】:6P.;A4
【正文语种】: