ASTM D1981-2011 脂肪酸加热色变测定的标准试验方法
时间:2024-05-09 05:28:03 来源: 标准资料网 作者：标准资料网 阅读：8170
【英文标准名称】:StandardTestMethodforMeasuringColorAfterHeatingofTallOilFattyAcids
【原文标准名称】:脂肪酸加热色变测定的标准试验方法
【标准号】:ASTMD1981-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【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】:D01.34
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:焊后加热颜色;脂肪酸颜色
【英文主题词】:colorafterheating;fattyacidcolor
【摘要】:Thecolorofatalloilfattyacidisreadilyaffectedbyheatandoxidization.Variationsindegreeofheat,timeofheat,andexposuretoatmosphereduringheatinghaveamarkedeffectonthecolorobtained;therefore,conformitytotheequipmentandprocedureoutlinedinthistestmethodisessentialtoaccuracyandprecision.1.1ThistestmethodcoversthemeasurementoftheGardnercoloroftalloilfattyacidsafterheatinginanatmosphereofnitrogenat205x00B0;Cforoneortwohours,dependingonwhetheritsiodinevalueisoverorunder15,respectively.Thespecimenmaybeheatedusingeitheranaluminumheatingblockoranoilbath.Thismethodisapplicabletoalltalloilfattyacids.Applicabilityofthismethodtoothertypesoffattyacidshasnotbeendetermined.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:17_180_20;87_060_20
【页数】:4P.;A4
【正文语种】:
【英文标准名称】:
【原文标准名称】:NFEN50056-1992的修改件1
【标准号】:NFC23-556/A1-1998
【标准状态】:作废
【国别】:法国
【发布日期】:1998-04-01
【实施或试行日期】:1998-04-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:气体;气体燃料;甲烷;爆炸性环境;测量范围;电磁的;易燃材料;沼气;燃料;干扰抑制;煤气;可燃性环境;工作性能;气体检测器;测量仪器;气体测量仪器;电气器具;安全要求;标定曲线;空气密度;定义;矿;电气工程;规范(验收);试验
【英文主题词】:
【摘要】:
【中国标准分类号】:K35
【国际标准分类号】:13_320
【页数】:4P;A4
【正文语种】:其他
【英文标准名称】:StandardTestMethodforWaterPenetrationofMetalRoofPanelSystemsbyStaticWaterPressureHead
【原文标准名称】:通过静水压头测试金属屋顶格间水渗透性的标准试验方法
【标准号】:ASTME2140-2001(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:E06.57
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:endlap;metalpanel;roof;roofpanel;sideseam;staticwaterpressure;water;waterleakage;waterpenetration;Metalroofpanelsystems;Statictests--buildingmaterials/applications;Waterpenetration--roofingmaterials/applications
【摘要】:Thistestmethodisastandardprocedurefordeterminingwaterleakagethroughmetalroofpanelsystemsideseams,endlaps,androofplanepenetrationswhentheroofsystemissubjectedtoaspecifiedstaticwaterpressurehead.Note28212;Inapplyingtheresultsoftestsbythismethod,notethattheperformanceofarooforitscomponentsorboth,isinpartafunctionofproperinstallationandadjustment.Inservice,theperformancewillalsodependontheintegrityofthesupportingconstruction,roofslope,andontheresistanceofcomponentstodeteriorationbyvariouscauses:corrosiveatmosphere,aging,ice,vibration,thermalcycling,etc.Itisdifficulttosimulatetheidenticalcomplexwetting,aging,andothervariableconditionsthatcanbeencounteredinservice,includingwind-blownpondedwater;theeffectsoftemperatureandageonsealantperformance;differentialpressureacrossthejointsduetowind,snow,andiceaccumulation;densificationandmigration;andabrasionswithinthejointcomponentswhichmayoccurduringthermalcyclingandotherweatherevents.Somejointconditionsaremoresensitivethanotherstothesefactors.Thistestmethodwillevaluatetheresistanceofroofpanels,sideseams,endlaps,androofplanepenetrationstowatersubmersion.Itwillnotevaluatepanelresistancetowinddrivenrain.Note38212;SeeTestMethodE1646foratestwhichevaluatesresistancetowinddrivenrain.Thistestmethodisnotastructuraladequacytest.Thistestmethodisapplicabletosingleskinmetalpanels,theexteriorskinoffactoryassembledcompositepanels,andtheexteriorskinoffieldassembledcompositesystemsaslongasmeanscanbeprovidedtodistinguishleakagethroughtheexteriorpanelsideseams/endlapsandperimeterleakage.1.1Thislaboratorytestmethodcoversthedeterminationoftheresistancetowaterpenetrationofexteriormetalroofpanelsystemsideseams,endlaps,androofplanepenetrationswhenaspecifiedstaticwaterpressureheadisappliedtotheoutsidefaceoftheroofpanel.Note18212;Thistestmethodisintendedtoevaluatewater-barrier(notwater-shedding)roofsystemjointsanddetails.Thesesystemsarealsoreferredtoashydrostaticroofsystems.1.2Thistestmethodislimitedtospecimensinwhichthesideseamsandattachmentsareclearlyvisibleandinwhichthesourceofleakageisreadilyobservable.1.3Thistestmethodexcludesperformanceatroofperimeterconditions.1.4Thistestmethodissuitableforevaluatingleakageatroofplanepenetrationssuchasfasteners,curbs,pipes,andexpansionjointsunderastaticwaterpressurehead.1.5Theproperuseofthistestmethodrequiresaknowledgeoftheprinciplesofwaterpressure.1.6Thetextofthisstandardincludesnotesandfootnotesexcludingtablesandfigures,whichprovideexplanatorymaterial.Thesenotesandfootnotesshallnotbeconsideredasrequirementsofthestandard.1.7Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificpr......
【中国标准分类号】:Q17
【国际标准分类号】:91_060_20
【页数】:4P.;A4
【正文语种】:英语