ANSI/ICEA S-90-661-1997 通信布线系统用单一未铠装双扭线室内电缆.技术要求
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来源:标准资料网
【英文标准名称】:IndividuallyUnshieldedTwistedPairIndoorCablesforUseInCommunicationWiringSystems-TechnicalRequirements
【原文标准名称】:通信布线系统用单一未铠装双扭线室内电缆.技术要求
【标准号】:ANSI/ICEAS-90-661-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:绝缘电缆;铜线;电信;通信电缆
【英文主题词】:copperwires;communicationcables;telecommunications;insulatedcables
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:33_040_20
【页数】:
【正文语种】:英语
【英文标准名称】:StandardPracticeforStorageandUseofLiquefiedPetroleumGases(LPG)inSampleCylindersforLPGTestMethods
【原文标准名称】:液化石油气试验方法用样品罐中液化石油气的储存和使用标准实施规范
【标准号】:ASTMD6849-2002(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:floatingpistoncylinder;liquefiedpetroleumgas(LPG);LPGsamplestoragecylinders;qualitycontrol(QC);standard80%fillcylinder;Compositionanalysis--petroleumproducts;Floatingpistoncylinder;Liquefiedpetroleumcylinder;LPG(liquefiedpetro
【摘要】:LPGsamplescanchangecompositionduringstorageandusefrompreferentialvaporizationoflighter(lowermolecularweight)hydrocarboncomponents,dissolvedinertgases(N2,Ar,He,andsoforth)andotherdissolvedgases/liquids(NH3,CO2,H2S,H2O,etc.).Carefulselectionofcylindertype,cylindervolume,anduseofinertgasforpressurizingcylindersisrequiredtoensurethatcompositionchangesaresmallenoughtomaintaintheintegrityofLPGwhenusedasaQCreferencematerialforvariousLPGtestmethods.MonitoringofongoingprecisionandbiasonQCmaterialsusingcontrolcharttechniquesinaccordancewithPracticeD6299canbeusedtoestablishtheneedforcalibrationormaintenance.1.1ThispracticecoversinformationforthestorageanduseofLPGsamplesinstandardcylindersofthetypeusedinsamplingmethod,PracticeD1265andfloatingpistoncylindersusedinsamplingmethod,PracticeD3700.1.2ThispracticeisespeciallyapplicablewhentheLPGsampleisusedasaqualitycontrol(QC)referencematerialforLPGtestmethods,suchasgaschromatography(GC)analysis(TestMethodD2163)orvaporpressure(TestMethodD6897)thatuseonlyafewmLpertest,sincerelativelysmallportableDepartmentofTransportation(DOT)cylinders(forexample,20lbcommonbarbecuecylinders)canbeused.Thispracticecanbeappliedtoothertestmethods.However,testmethodsthatrequirealargeamountofsamplepertest(forexample,manualvaporpressureTestMethodD1267)willrequireQCvolumesinexcessof1000LifstoredinstandardDOTcylindersorAmericanSocietyofMechanicalEngineers(ASME)vessels.
【中国标准分类号】:E46
【国际标准分类号】:75_200
【页数】:4P.;A4
【正文语种】:英语
Product Code:SAE AS9216
Title:Screw, Machine - Steel, Diffused Nickel-Cadmium Plated, Double Hexagon Extended Washer Head, Drilled, UNS K14675, 195 Ksi Min, .1640-36 UNJF-3A
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope: No scope available.
Rationale: No scope available.
