ASTM D 5168-2003 三层波纹纤维板集装箱的制造和封闭的标准操作规程

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【英文标准名称】:StandardTestMethodforVaporPressureofPetroleumProducts(MiniMethod)
【原文标准名称】:石油产品蒸气压力的标准试验方法(小型法)
【标准号】:ASTMD5191-2007
【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】:D02.08.0D
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:石油产品;测试;蒸气压力
【英文主题词】:dryvaporpressure;gasoline;hydrocarbon-oxygenateblends;minimethod;petroleumproducts;vaporpressure
【摘要】:Vaporpressureisaveryimportantphysicalpropertyofvolatileliquids.Thevaporpressureofgasolineandgasoline-oxygenateblendsisregulatedbyvariousgovernmentagencies.Specificationsforvolatilepetroleumproductsgenerallyincludevaporpressurelimitstoensureproductsofsuitablevolatilityperformance.ThistestmethodismoreprecisethanTestMethodD4953,usesasmallsamplesize(1to10mL),andrequiresabout7mintocompletethetest.1.1Thistestmethodcoverstheuseofautomatedvaporpressureinstrumentstodeterminethetotalvaporpressureexertedinvacuumbyair-containing,volatile,liquidpetroleumproducts.Thistestmethodissuitablefortestingsampleswithboilingpointsabove0176;C(32176;F)thatexertavaporpressurebetween7and130kPa(1.0and18.6psi)at37.8176;C(100176;F)atavapor-to-liquidratioof4:1.Measurementsaremadeonliquidsamplesizesintherangefrom1to10mL.Noaccountismadefordissolvedwaterinthesample.Note1-Samplescanalsobetestedatothervapor-to-liquidratios,temperatures,andpressures,buttheprecisionandbiasstatementsneednotapply.Note2-Theinterlaboratorystudiesconductedin1988,1991,and2003todeterminetheprecisionstatementsinTestMethodD5191didnotincludeanycrudeoilinthesamplesets.TestMethodD6377,aswellasIP481,havebeenshowntobesuitableforvaporpressuremeasurementsofcrudeoils.1.1.1Somegasoline-oxygenateblendsmayshowahazewhencooledto0to1176;C.Ifahazeisobservedin8.5,itshallbeindicatedinthereportingofresults.Theprecisionandbiasstatementsforhazysampleshavenotbeendetermined(seeNote14).1.2Thistestmethodissuitableforcalculationofthedryvaporpressureequivalent(DVPE)ofgasolineandgasoline-oxygenateblendsbymeansofacorrelationequation(seeEqn.1in14.2).ThecalculatedDVPEverycloselyapproximatesthedryvaporpressurethatwouldbeobtainedonthesamematerialwhentestedbyTestMethodD4953.1.3ThevaluesstatedinSIunitsareregardedasstandard.Theinch-poundunitsgiveninparenthesesareprovidedforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificsafetywarningstatements,see7.2through7.8.
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:9P.;A4
【正文语种】:


【英文标准名称】:Aerospaceseries-Circuitbreakers,single-pole,temperaturecompensated,ratedcurrent1Ato25A-Part004:Withsignalcontact-Productstandard
【原文标准名称】:航空航天系列.温度补偿额定电流1A～25A单极断路器.第004部分:信号连接器.产品标准
【标准号】:BSEN2995-004-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2007-01-31
【实施或试行日期】:2007-01-31
【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】:航空航天运输;飞行器部件;断路器;触点;名称与符号;电气工程;电气保护设备;电气系统;作标记;产品标准;额定电流;单极;航天运输;开关设备;温度补偿;试验;螺纹紧固件
【英文主题词】:Aerospacetransport;Airtransport;Aircraftcomponents;Circuit-breakers;Contact;Designations;Electricalengineering;Electricalprotectionequipment;Electricalsystems;Marking;Productstandards;Ratedcurrent;Single-pole;Spacetransport;Switchgear;Temperature-compensated;Testing;Threadfasteners
【摘要】:Thisstandardspecifiesthecharacteristicsofsingle-polecircuitbreakers,temperaturecompensatedwitharatedcurrentfrom1Ato25A,usedinaircrafton-boardcircuitsatatemperaturebetween–55°Cand125°Candatanaltitudeof22000mmax.Thesecircuitbreakersareoperatedbyapush-pulltypesinglepushbutton(actuator),withdelayedaction"trip-free"trippingwithasignalcontactwhichisopenwhenmaincontactsareclosed,andinversely.Theywillcontinuetofunctionuptotheshort-circuitcurrent.
【中国标准分类号】:V25
【国际标准分类号】:49_060
【页数】:14P.;A4
【正文语种】:英语