ANSI/ASTM D6426-2007 中间馏分燃料油可过滤性测定的试验方法
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【英文标准名称】:TestMethodforDeterminingFilterabilityofMiddleDistillateFuelOils
【原文标准名称】:中间馏分燃料油可过滤性测定的试验方法
【标准号】:ANSI/ASTMD6426-2007
【标准状态】:作废
【国别】:美国
【发布日期】:2007
【实施或试行日期】:2007-07-31
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:燃烧器;测定;馏分;过滤;燃料油;燃料;油;固体燃料;测试
【英文主题词】:Burners;Determination;Distillates;Filterability;Filtrations;Fueloil;Fuels;Liquid;Middle;Oils;Solidfuels;Testing
【摘要】:Thistestmethodcoversaprocedurefordeterminingthefilterabilityofdistillatefueloilswithintheviscosityrangefrom1.70to6.20mm/s(cSt)at40?C.Note1ASTMspecificationfuelsfallingwithinthescopeofthistestmethodareSpecificationD396GradeNos.1and2,SpecificationD975Grades1-D,lowsulfur1-D,2-D,andlowsulfur2-D,andSpecificationD2880GradeNos.1-GTand2-GT.Thistestmethodisnotapplicabletofuelsthatcontainundissolvedwater.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:27_060_10
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforFrostHeaveandThawWeakeningSusceptibilityofSoils
【原文标准名称】:土壤对冻胀和解冻变弱敏感性的标准试验方法
【标准号】:ASTMD5918-2006
【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】:D18.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:土壤组分;耐霜冻性;试验;融解
【英文主题词】:freeze-thawtest;frostsusceptibility;roadsandrunways;soilandaggregate;thawweakeningsusceptibility
【摘要】:Thesetestmethodscanbeusedtodeterminetherelativefrost-susceptibilityofsoilsusedinpavementsystems.Boththefrostheavesusceptibilityandthethawweakeningsusceptibilitycanbedetermined.Thesetestmethodsshouldbeusedonlyforseasonalfrostconditionsandnotforpermanentorlong-termfreezingofsoil.Thesetestmethodsalsohavenotbeenvalidatedforanythingotherthanpavementsystems.Thesetestmethodscannotbeusedtopredicttheamountoffrostheaveorthawweakeninginthefield.Itspurposeistodeterminetherelativefrost-susceptibilityclassificationforuseinempiricalpavementdesignmethodsforseasonalfrostregions.1.1Theselaboratorytestmethodscoverthefrostheaveandthawweakeningsusceptibilitiesofsoilthatistestedinthelaboratorybycomparingtheheaverateandthawedbearingratiowithvaluesinanestablishedclassificationsystem.Thistestwasdevelopedtoclassifythefrostsusceptibilityofsoilsusedinpavements.Itshouldbeusedforsoilswherefrost-susceptibilityconsiderations,basedonparticlesizesuchasthelimitof3%finerthan20mminSpecificationD2940,areuncertain.Thisismostimportantforfrost-susceptibilitycriteriasuchasthoseusedbytheCorpsofEngineers,thatrequireafreezingtestforaggregatesofinconclusivefrostclassification.Thefrostheavesusceptibilityisdeterminedfromtheheaverateduringfreezing.Thethawweakeningsusceptibilityisdeterminedwiththebearingratiotest(seeTestMethodD1883).1.2Thisisanindextestforestimatingtherelativedegreeoffrost-susceptibilityofsoilsusedinpavementsystems.Itcannotbeusedtopredicttheamountoffrostheavenorthestrengthafterthawing,norcanitbeusedforapplicationsinvolvinglong-termfreezingofpermafrostorforfoundationsofrefrigeratedstructures.1.3Thetestmethodsdescribedareforonespecimenandusesmanualtemperaturecontrol.Itissuggestedthatfourspecimensbetestedsimultaneouslyandthatthetemperaturecontrolanddatatakingbeautomatedusingacomputer.1.4AllrecordedandcalculatedvaluesshallconformtotheguideforsignificantdigitsandroundingestablishedinPracticeD6026.1.4.1Theproceduresusedtospecifyhowdataarecollected/recordedandcalculatedinthisstandardareregardedastheindustrystandard.Inaddition,theyarerepresentativeofthesignificantdigitsthatshouldgenerallyberetained.Theproceduresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsiderationsfortheusersobjectives;anditiscommonpracticetoincreaseorreducesignificantdigitsofreporteddatatobecommensuratewiththeseconsiderations.Itisbeyondthescopeofthisstandardtoconsidersignificantdigitsusedinanalysismethodsforengineeringdesign.1.4.2Measurementsmadetomoresignificantdigitsorbettersensitivitythanspecifiedinthisstandardshallnotberegardedanonconformancewiththisstandard.1.5ThisStandardiswrittenusingSIunits.Inch-poundunitsareprovidedforconvenience.Thevaluesstatedininchpoundunitsmaynotbeexactequivalents;therefore,theyshallbeusedindependentlyoftheSIsystem.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththisstandard.1.5.1Thegravitationalsystemofinch-poundunitsisusedwhendealingwithinch-poundunits.Inthissystem,thepound(lbf)representsaunitofforce(weight),whiletheunitformassisslugs.Therationalizedslugunitisnotgiven,unlessdynamic(F=ma)calculationsareinvolved.1.5.2Itiscommonpracticeintheengineering/constructionprofessiontoconcurrentlyusepoundstorepresentbothaunitofmass(lbm)andofforce(lbf).Thisimplicitlycombinestwoseparatesystemsofunits;thatis,the......
【中国标准分类号】:B11
【国际标准分类号】:13_080_01
【页数】:12P.;A4
【正文语种】:
Product Code:SAE AMS3793/4
Title:Tape and Webbing, Textile, Para-Aramid Intermediate Modulus 1 Inch (25 Mm), 0.08 to 1.65 Ounces Per Yard (2.5 to 51.2 G/M)
Issuing Committee:Ams P Polymeric Materials Committee
Scope: This specification covers twelve classes of para-aramid tape and webbing of a single width and with varying weights.
Rationale: This specification covers twelve classes of para-aramid tape and webbing of a single width and with varying weights.
