SAE AMS3901/7 Yarn, Organic Fiber (Para-Aramid), High Modulus, 2160 Denier, (2400 d tex), 0.6% Finish

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Product Code:SAE AMS3901/7
Title:Yarn, Organic Fiber (Para-Aramid), High Modulus, 2160 Denier, (2400 d tex), 0.6% Finish
Issuing Committee:Ams P17 Composite Materials Committee
Scope:This specification covers one type of organic fiber in the form of yarn. The product shall be formed as a multiplicity of filaments drawn together and gathered into an approximately parallel arrangement.Organic 2160 denier (2400 d tex) yarn with 390 ksi (2689 MPa) or 19.0 g/d minimum tensile strength and 16.5 Msi (114 GPa) or 750 g/d minimum tensile modulus for use in filament winding requiring high tensile strength and high modulus of elasticity in tension.
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【英文标准名称】:StandardTestMethodsforCompressiveStrengthofMoldedSoil-CementCylinders
【原文标准名称】:模制土壤水泥圆筒的耐压强度用标准试验方法
【标准号】:ASTMD1633-2000(2007)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D18.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:水泥;化合物;耐压强度;建筑;施工材料;压力;土壤;静压铸件;试验
【英文主题词】:compressivestrength;soil-cement;soilstabilization
【摘要】:MethodAmakesuseofthesamecompactionequipmentandmoldscommonlyavailableinsoillaboratoriesandusedforothersoil-cementtests.ItisconsideredthatMethodAgivesarelativemeasureofstrengthratherthanarigorousdeterminationofcompressivestrength.Becauseofthelesserheighttodiameterratio(1.15)ofthecylinders,thecompressivestrengthdeterminedbyMethodAwillnormallybegreaterthanthatforMethodB.MethodB,becauseofthegreaterheighttodiameterratio(2.00),givesabettermeasureofcompressivestrengthfromatechnicalviewpointsinceitreducescomplexstressconditionsthatmayoccurduringtheshearingofMethodAspecimens.Inpractice,MethodAhasbeenmorecommonlyusedthanMethodB.Asaresult,ithasbeencustomarytoevaluateorspecifycompressivestrengthvaluesasdeterminedbyMethodA.AfactorforconvertingcompressivestrengthvaluesbasedonheighttodiameterratioisgiveninSection8.3Note18212;TheagencyperformingthistestmethodcanbeevaluatedinaccordancewithPracticeD3740.Notwithstandingstatementsonprecisionandbiascontainedinthistestmethod:theprecisionofthistestmethodisdependentonthecompetenceofthepersonnelperformingitandthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting.UsersofthistestmethodarecautionedthatcompliancewithPracticeD3740doesnot,initself,ensurereliabletesting.Reliabletestingdependsonmanyfactors;PracticeD3740providesameansofevaluatingsomeofthesefactors.1.1Thistestmethodcoversthedeterminationofthecompressivestrengthofsoil-cementusingmoldedcylindersastestspecimens.1.2Twoalternativeproceduresareprovidedasfollows:1.2.1MethodA-Thisprocedureusesatestspecimen4.0in.(101.6mm)indiameterand4.584in.(116.4mm)inheight.Heighttodiameterratioequals1.15.Thistestmethodmadebeusedonlyonmaterialswith30%orlessretainedonthe3/4-in.(19.0-mm)sieve.SeeNote3.1.2.2MethodB-Thisprocedureusesatestspecimen2.8in.(71.1mm)indiameterand5.6in.(142.2mm)inheight.Heighttodiameterratioequals2.00.ThistestmethodisapplicabletothosematerialsthatpasstheNo.4(4.75-mm)sieve.1.3AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard,exceptasnotedin1.4.1-1.4.3.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunits,andareprovidedforinformationonlyandarenotconsideredstandard.1.4.1Thegravitationalsystemofinch-poundunitsisusedwhendealingwithinch-poundunits.Inthissystem,thepound(lbf)representsaunitofforce(weight),whiletheunitformassisslugs.1.4.2Theslugunitofmassisalmostneverusedincommercialpractice(density,scales,balances,etc.).Therefore,thestandardunitformassinthisstandardiseitherkilogram(kg)orgram(g),orboth.Also,theequivalentinch-poundunit(slug)isnotgiven.1.4.3Itiscommonpracticeintheengineering/constructionprofessionintheUnitedStatestouseconcurrentlypoundstorepresentbothaunitofmass(lbm)andofforce(lbf).Thisusecombinestwoseparatesystemofunits,theabsolutesystemandthegravitationalsystem.Itisscientificallyundesirabletocombinetheuseoftwoseparatesetsofinch-poundunitswithinasinglestandard.Asstatedin1.4.2,thisstandardusesthegravitationalsys......
【中国标准分类号】:Q14
【国际标准分类号】:93_020
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Anodizingofaluminiumanditsalloys-Acceleratedtestoflightfastnessofcolouredanodicoxidationcoatingsusingartificiallight
【原文标准名称】:铝和铝合金的阳极氧化.用人工灯对有色阳极氧化涂层耐光性的加速试验
【标准号】:ISO2135-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-02
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC79
【标准类型】:()
【标准水平】:()
【中文主题词】:加速试验;铝;铝合金;阳极镀层;阳极氧化;人工照明;轻金属;耐光性;金属的;氧化物覆层;试验
【英文主题词】:Accelerationtests;Aluminium;Aluminiumalloys;Anodiccoating;Anodizing;Artificiallighting;Lightmetals;Light-fastness;Metallic;Oxidecoatings;Testing
【摘要】:ThisInternationalStandardspecifiesanacceleratedtestmethodforassessingthefastness,usingartificiallight,ofcolouredanodicoxidationcoatingsonaluminiumanditsalloys.Forevaluatinglightfastnessonexteriorexposure,onlyoutdoorexposureunderconditionscomparabletoactualserviceiscompletelysatisfactory.Acceleratedtestingissuitableasaquality-controltestofcolouredanodicoxidationcoatingswhoselightfastnessnumberhasalreadybeenestablishedbymeansofoutdoorexposuretesting.Themethodisapplicabletocolouredanodicoxidationcoatingsonaluminiumanditsalloysproducedbyanymeansandforanypurpose.However,themethodisnotsuitableforthemeasurementofcolouredcoatingswithalight-fastnessnumberalreadyestablishedbymeansofoutdoorexposuretesting,andoflessthan6.
【中国标准分类号】:A29
【国际标准分类号】:25_220_20
【页数】:10P.;A4
【正文语种】:英语