MIL-STD-289A
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MIL-STD-289A, MILITARY STANDARD: VISUAL INSPECTION GUIDE FOR RUBBER SHEET MATERIAL (02 DEC 1968)., This document covers only visual defects for conventional rubber sheet material, from which gaskets, and similar items are cut. This standard is not applicable to cellular rubber, coated fabrics, cast plasticsol, or latex films.
MIL-STD-1660 (NOTICE 1) DESIGN CRITERIA FOR AMMUNITION UNIT LOADSMake pen and ink changes or add new paragraphs to the following pages.【英文标准名称】:StandardTestMethodforVaporPressureofGasolineandGasoline-OxygenateBlends(DryMethod)
【原文标准名称】:汽油和汽油元氧混合物蒸气压力的标准试验方法(干燥法)
【标准号】:ASTMD4953-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:汽油;试验;蒸气压力
【英文主题词】:
【摘要】:Vaporpressureisanimportantphysicalpropertyofliquidspark-ignitionenginefuels.Itprovidesanindicationofhowafuelwillperformunderdifferentoperatingconditions.Forexample,vaporpressureisafactorindeterminingwhetherafuelwillcausevaporlockathighambienttemperatureorathighaltitude,orwillprovideeasystartingatlowambienttemperature.Petroleumproductspecificationsgenerallyincludevaporpressurelimitstoensureproductsofsuitablevolatilityperformance.Note38212;Vaporpressureoffuelsisregulatedbyvariousgovernmentagencies.1.1Thistestmethodcoversandisapplicabletogasolinesandgasoline-oxygenateblendswithavaporpressurerangefrom35to100kPa(5to15psi)(seeNote2).Thistestmethod,amodificationofTestMethodD323(ReidMethod),providestwoprocedurestodeterminethevaporpressure(Note1)ofgasolineandgasoline-oxygenateblends.Note0Becausetheexternalatmosphericpressureiscounteractedbytheatmosphericpressureinitiallypresentintheairchamber,thisvaporpressureisanabsolutepressureat37.8176;C(100176;F)inkilopascals(pounds-forcepersquareinch).Thisvaporpressurediffersfromthetruevaporpressureofthesampleduetosomesmallvaporizationofthesampleandairintheconfinedspace.Note0Vaporpressureofgasolineorgasoline-oxygenateblendsbelow35kPa(5psi)orgreaterthan100kPa(15psi)canbedeterminedwiththistestmethodbuttheprecisionandbias(Section)donotapply.Formaterialswithavaporpressuregreaterthan100kPa(15psi),usea0to200kPa(0to30psi)gaugeasspecifiedintheannexofTestMethodD323.1.2Somegasoline-oxygenateblendsmayshowahazewhencooledto0to1176;C.Ifahazeisobservedin9.4,itshallbeindicatedinthereportingofresults.Theprecisionandbiasstatementsforhazysampleshavenotbeendetermined(seeNote7).1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificwarningsaregivenin7.5,8.4.1,8.5.1,9.1,A1.1,andA1.1.3.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:8P.;A4
【正文语种】:
