ASTM C115-2010 用浊度计测定硅酸盐水泥细度标准试验方法
时间:2024-05-12 15:15:16 来源: 标准资料网 作者：标准资料网 阅读：9813
【英文标准名称】:StandardTestMethodforFinenessofPortlandCementbytheTurbidimeter
【原文标准名称】:用浊度计测定硅酸盐水泥细度标准试验方法
【标准号】:ASTMC115-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:C01.25
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:细度;硅酸盐水泥;浊度计;瓦格纳;细度-水硬性水泥(混用的/波特兰);比浊计法;瓦格纳浊度计
【英文主题词】:fineness;portlandcement;turbidimeter;Wagner;Fineness--hydrauliccement(blended/portland);Portlandcement;Turbidimetermethod;Wagnerturbidimeter
【摘要】:ThepurposeofthistestmethodistodeterminewhetherornotthehydrauliccementundertestmeetstheWagnerturbidimetricfinenessrequirementsoftheapplicablehydrauliccementspecificationforwhichthetestisbeingmade.Finenessofthecementcomponentisonlyoneofthemanycharacteristicsthatinfluencethestrengthcapabilitiesofconcrete.1.1Thistestmethodcoversdeterminationofthefinenessofportlandcementasrepresentedbyacalculatedmeasureofspecificsurface,expressedassquarecentimetresoftotalsurfaceareapergram,orsquaremetresoftotalsurfaceareaperkilogram,ofcement,usingtheWagnerturbidimeter.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.ValuesinSIunits[orinch-poundunits]shallbeobtainedbymeasurementinSIunits[orinch-poundunits]orbyappropriateconversion,usingtheRulesforConversionandRoundinggiveninofmeasurementsmadeinotherunits.ValuesarestatedinSIunitswheninch-poundunitsarenotusedinpractice.
【中国标准分类号】:Q11
【国际标准分类号】:91_100_10
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodforDeterminationofAntioxidantsandErucamideSlipAdditivesinPolyethyleneUsingLiquidChromatography(LC)
【原文标准名称】:用液相色谱法(LC)测定聚乙烯中抗氧化剂和ErucamideSlip添加剂的标准试验方法
【标准号】:ASTMD6953-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D20.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:抗氧化剂;添加剂;聚乙烯;液相色谱法;测定;滑动
【英文主题词】:additive;antioxidants;erucamideslip;extraction;polyethylene
【摘要】:Separationandidentificationofstabilizersusedinthemanufactureofpolyethyleneresinsarenecessaryinordertocorrelateperformancepropertieswithpolymercomposition.ThistestmethodprovidesameanstodetermineBHT,BHEB,Isonox129,erucamideslip,Irgafos168,Irganox1010,Irganox1076andTNPPlevelsinpolyethylenesamples.ThistestmethodshouldbeapplicableforthedeterminationofotherantioxidantssuchasUltranox626,Ethanox330,SantanoxR,andTopanolCA,butthestabilityoftheseduringextractionhasnotbeeninvestigated.Theadditiveextractionprocedureismadeeffectivebytherelativelylowsolubilityofthepolymersampleinsolventsgenerallyusedforliquidchromatographicanalysis.Inthismethod,isopropanolandcyclohexanewerechosenbecauseoftheirexcellentextractionefficienciesaswellasforsafetyreasons.Othersolventsincludingethylacetate,isobutanol,chloroformandmethylenechloridecanalsobeused.Methodsotherthanrefluxingthathavebeenusedtoremoveadditivesfromthepolymermatrixincludemicrowave,ultrasonic,andsupercriticalfluidextractions.Fortheseparationoftheextractedadditives,SFCandGChavebeenusedsuccessfullyforseveraloftheadditives.Underoptimumconditions,thelowestlevelofdetectionforanantioxidantisapproximately2ppm.1.1Thistestmethodcoversaliquid-chromatographicprocedurefortheseparationofsomeadditivescurrentlyusedinpolyethylene.Theseadditivesareextractedwitheitherisopropanol(resindensities60;0.94g/cm3)orcyclohexane(resindensities62;0.94g/cm3)priortoliquid-chromatographicseparation.Theultravioletabsorbanceoftheelutingcompound(s)ismeasuredandquantitationisperformedusingexternalcalibration.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection9.Note18212;ThereisnoequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_040_20
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:StandardPracticeforConductinganInterlaboratoryTestProgramtoDeterminethePrecisionofTestMethodsforConstructionMaterials
【原文标准名称】:为确定建筑材料试验方法精确度而实行实验室间试验程序的标准实施规程
【标准号】:ASTMC802-2009a
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:C09.94
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Constructionmaterials;Interlaboratorytesting--constructionmaterials;Precision--constructionmaterialstestmethods;Testingandinspectionagencies--cement/concrete
【摘要】:Certaincriterianeedtobemetbeforeundertakinganinterlaboratorystudytodeterminetheprecisionofatestmethod.Itisnotnecessarythatallofthefollowingconditionsdescribedbecompletelyfulfilledineverycase;however,ifsomeconditionsarenotmetoraremetincompletely,theprogramwillbecomemorecomplicatedandrequiremoreworkandexpense,ormayresultinimpairedinformation.Therecommendationsoutlinedinthissectionareintendedtoensurethatthetestmethodisfreeoftechnicaldifficultiestothegreatestextentpossiblebeforeanexpensiveandtime-consuminginterlaboratorystudyisundertaken.Thefirstrequirementistheexistenceofavalidandwell-writtentestmethodthathasbeendevelopedinonecompetentlaboratory(orbycooperativeworkinasmallnumberoflaboratories),andhasbeensubjectedtoascreeningprocedure,ortoruggednesstestingasdescribedinPracticeC1067.Asaresultofthescreeningprocedureandsomeexperiencewiththetestmethodinthesponsoringlaboratoryandoneortwoothers,awrittenversionofthetestmethodhasbeendeveloped(butnotnecessarilypublishedasastandardmethod)thatdescribesthetestprocedureintermsthatcaneasilybefollowedinanyproperlyequippedlaboratory.Conditionsthataffectthetestresultsshouldbeidentifiedandtheproperdegreeofcontrolofthoseconditionsshouldbespecifiedinthedescriptionofthetestprocedure(seeNote1).Note18212;Thedesireddegreeofcontrolofconditionsthataffecttestresultsmaynotalwaysbepracticallyachievable,andtolerancesinthetestmethodshouldrecognizethisfact.Variationsintestresultsduetovariationsinsuchconditionscontributetothetotalvariationwhichdeterminestheprecisionofthetestmethod.Iftheresultingvariationissogreatthatuncertaintiesinaveragevaluesobtainedbythetestmethodareunacceptablyhigh,thenthetestmethoditselfisatfault,andeffortsshouldbemadetoimproveitortoreplaceitbyabetterone.Anexpensiveandtime-consuminginterlaboratorystudyshouldnotbeundertakenonsuchatestmethod.Anyapparatusrequiredforperformingthetestshouldbeappropriatelydesignedandavailableatreasonablecost.Personnelinparticipatinglaboratoriesshouldhaveenoughexperiencewiththetestmethodsothattheyarecompetenttorunthetest.Theimportanceofthisrequirementwillvarywiththecomplexityofthemethodandthedegreetowhichitdepartsfromfamiliarprocedures.Preliminaryknowledgeshouldexistabouthowchangesinmaterialsandconditionsaffectthetestresults.Thereshouldbeareasonabledegreeofcertaintythatthewithin-laboratoryvariancesarethesameindifferentlaboratories,andthattroublesomeinteractionsdonotexist.Theseconditionsareinvestigatedintheanalysisofthedataofaninterlaboratorystudy,andarediscussedfurtherin8.2.2,8.2.3,andAppendixX1.Facilitiesandproceduresforprocurement,preparation,anddistributionofsamplesmustbeavailableandshouldbeassimpleandfreeofdifficultiesaspracticable.Selectionofsamplesmustbedonebyarandomizationprocess,andonepersonwhoisfamiliarwithrandomizationproceduresshouldberesponsibleforseeingthattheprocedureiscarriedout.RefertoRecommendedPracticeE105.Adequatenumbersofparticipatinglaboratories,operators,andmaterialsmustbeavailable.RequirementsintheseareasarespecifiedinSections4and5.Theentireinterlaboratorytestprogramshouldbedevelopedfromthebeginningwiththehelpandadviceofpersonsfamiliarwithstatisticalproceduresandwiththemate.......
【中国标准分类号】:Q10
【国际标准分类号】:91_100_01
【页数】:18P.;A4
【正文语种】:英语