NF U22-207-1979 苗床制备用机具.S型中耕机的轻齿.清理范围和主要尺寸

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【英文标准名称】:StandardTestMethodforFreezingPointofAqueousEthyleneGlycolBaseEngineCoolantsbyAutomaticPhaseTransitionMethod
【原文标准名称】:自动相变法测定含水乙二醇基发动机冷却剂凝固点的标准试验方法
【标准号】:ASTMD6660-2001(2007)
【标准状态】:现行
【国别】:
【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】:D15.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aqueousenginecoolants;crystals;enginecoolants;freezingpoint;Peltier;thermoelectric
【摘要】:Thefreezingpointofanenginecoolantindicatesthecoolantfreezeprotection.Thefreezingpointofanenginecoolantmaybeusedtodeterminetheapproximateglycolcontent,providedtheglycoltypeisknown.FreezingpointasmeasuredbyTestMethodD1177orapprovedalternativemethodisarequirementinSpecificationsD3306andD6210.ThistestmethodprovidesresultsthatareequivalenttoTestMethodD1177andexpressesresultstothenearest0.1x00B0;CwithimprovedreproducibilityoverTestMethodD1177.ThistestmethoddeterminesthefreezingpointinashorterperiodoftimethanTestMethodD1177.ThistestmethodremovesmostoftheoperatortimeandjudgementrequiredbyTestMethodD1177.1.1Thistestmethodcoversthedeterminationofthefreezingpointofanaqueousenginecoolantsolution.1.2Thistestmethodisdesignedtocoverethyleneglycolbasecoolantsuptoamaximumconcentrationof60%(v/v)inwater;however,theASTMinterlaboratorystudymentionedin12.2hasonlydemonstratedthetestmethodwithsampleshavingaconcentrationrangeof40to60%(v/v)water.Note18212;Wheresolutionsofspecificconcentrationsaretobetested,theyshallbepreparedfromrepresentativesamplesasdirectedinTestMethodD1176.Secondaryphasesseparatingondilutionneednotbeseparated.Note28212;Theproductsmayalsobemarketedinaready-to-useform(prediluted).1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesisareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J90
【国际标准分类号】:19_040;71_100_45
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Testingofceramicmaterials;chemicalanalysisofmaterialsofabove80percentbyweightmagnesiumoxidecontent,determinationofchromousoxide
【原文标准名称】:陶瓷原材料的检验.氧化镁含量超过80%的原材料的化学分析.氧化铬的测定
【标准号】:DIN51073-4-1967
【标准状态】:作废
【国别】:德国
【发布日期】:1967-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:分析;原材料;铬;材料;试验;陶瓷;含量测定;氧化物
【英文主题词】:ceramics;testing;oxides;chromium;materials;analysis;determinationofcontent;rawmaterials
【摘要】:
【中国标准分类号】:Q40;Q30
【国际标准分类号】:81_060_10
【页数】:2P;A4
【正文语种】:德语