MIL-C-372C (AMENDMENT 2)
时间:2024-05-19 07:38:02 来源: 标准资料网 作者：标准资料网 阅读：8071
MIL-C-372C (AMENDMENT 2), MILITARY SPECIFICATION: CLEANING COMPOUND, SOLVENT (FOR BORE OF SMALL ARMS AND AUTOMATIC AIRCRAFT WEAPONS) (03 OCT 1989) [S/S BY MIL-PRF-372D].
【英文标准名称】:StandardTestMethodforCommercialMassofaShipmentofYarnorManufacturedStapleFiberorTow
【原文标准名称】:纱线或人造纤维或纤维束货包的商业质量的标准试验方法
【标准号】:ASTMD2494-2002(2010)e1
【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】:D13.58
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:commercialmass;textilefibers;textilestrand;yarn;Acceptancecriteria/testing--textilefabrics/fibers;Commercialmass;Grossmassoftare;Manufacturedfiber;Mass--commercialmass;Tare;Textilestrands;Tow;Yarnproperties
【摘要】:Thistestmethodisconsideredsatisfactoryasarefereemethodforacceptancetestingofcommercialshipmentsofyarnormanufacturedstaplefibers.Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestsshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,usethesamplesforsuchacomparativetestthatareashomogeneousaspossible,drawnfromthesamelotofmaterialasthesamplesthatresultedindisparateresultsduringinitialtestingandrandomlyassignedinequalnumberstoeachlaboratory.Thetestresultsfromthelaboratoriesinvolvedshouldbecomparedusingastatisticaltestforunpaireddata,aprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscasusemustbefoundandcorrected,orfuturetestresultsforthatmaterialmustbeadjustedinconsiderationoftheknownbias.OptionIisgenerallyusedtocalculatethecommercialmassofspunyarns,texturedyarns,tops,andslivers.WhenmaterialsaresoldonaCMRUbasis,thepurchaserpaysforthefiberlubricantorotherremovableprocessingaids.OptionIIisgenerallyusedtocalculatethecommercialmassofas-producedmanufacturedfilamentyarns(exceptsomeproducer-texturedyarns),manufacturedstaplefibers,andtows.Thisoptionisintendedtoreflectthemassoffiberremainingafterfiberlubricantsandprocessingaidsareremoved.OptionIIIisincommonuseinothercountries,particularlyinEurope.OptionIVisincommonusewithyarnsmadeofwoolorwoolblendsandsomearamids.Whenitcanbeshownthatsolventextractionoranothermethodoftestinggivesthesameresults,orresultsthathaveaconstantratiotothoseobtainedbythescourprocedure,thatmethodmaybeusedforroutinetestingofknownproductionbutshouldnotbesubstitutedforascouronneworunknownmaterial.Forthedeterminationofextractablematter,refertoTestMethodD2257.Whenthefinishisnotremovablebyawaterscour,asolventextractionmaybesubstitutedonagreementbetweenthepurchaserandthesupplier.Undercertaincircumstances,samplestakenfromyarnsandmanufacturedstaplefibersandtowscanchangemoisturecontentrapidly.Forthisreason,verycarefulplanningandhandlingofsamplesarerequiredtopreventmajorbiasesincommercialmassresults.1.1Thistestmethodprovidesameasurementofthecommercialmassofashipmentofyarnormanufacturedstaplefiberortow.Thistestmethodappliesto(1)yarnofallfibertypesexceptsilk,glass,asbestos,andbast;(2)topsandsliversofallfibertypesexceptwool,silk,glass,asbestos,andbast;and(3)manufacturedfibersortow,exceptglassandotherfibersusedforspecialpurposessuchasflock(Note1).Note18212;Forothertestmethodsformeasuringmassoffibrousmaterials,refertoPracticeD2720.1.1.1Samplinginthistestmethodisprimarilyforuseinacceptancetestingratherthanproductioncontrol.manufacturedfiberproducersusuallysampleforthecommercialx201C;massx201D;ofproductonanon-goingbasisratherthaneachshipmenttoacustomer.1.2Commercialmasshasbeentraditionallybasedononeofthreeoptionsdependingonthestateofthematerial:(1)dried,unscouredyarn,staplefiber,tow,andsoforth,usingcommercialmoisture......
【中国标准分类号】:W58
【国际标准分类号】:59_080_20
【页数】:6P.;A4
【正文语种】:英语
【英文标准名称】:
【原文标准名称】:造船.5K旋压式青铜止回球阀
【标准号】:JISF7351-1995
【标准状态】:作废
【国别】:日本
【发布日期】:1995-06-01
【实施或试行日期】:1995-06-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:单向阀;海船;球形;球芯旋塞;青铜;旋压阀
【英文主题词】:
【摘要】:
【中国标准分类号】:U53
【国际标准分类号】:
【页数】:
【正文语种】: