NF A89-810-1-1999 热塑性半成品的焊接接头检验.第1部分:弯曲试验.

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下一篇: NF E82-002-2-1999 钢模锻件.尺寸公差.第2部分:在水平锻造机器上的镦锻

【英文标准名称】:StandardSpecificationforJointsforConcretePipe,Manholes,andPrecastBoxSectionsUsingPreformedFlexibleJointSealants[Metric]
【原文标准名称】:使用挠性预制接缝密封料的混凝土管道、人孔和预制箱型部件接头的标准规范(米制)
【标准号】:ASTMC990M-2001
【标准状态】:作废
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:管;密封;混凝土;人孔
【英文主题词】:concretes;manholes;sealing;pipes
【摘要】:
【中国标准分类号】:Q14
【国际标准分类号】:91_100_30
【页数】:4P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforAcetone,p-Chlorobenzotrifluoride,MethylAcetateort-ButylAcetateContentofSolventborneandWaterbornePaints,Coatings,Resins,andRawMaterialsbyDirectInjectionIntoaGasChromatograph
【原文标准名称】:通过直接注入一气体色谱仪测定含溶剂和含水涂料,涂层,树脂和原材料中丙酮及甲基和丁基醋酸盐含量的标准试验方法
【标准号】:ASTMD6133-2002(2008)
【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】:D01.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:acetone;acetonecontentbygaschromatography;exemptvolatilecompounds;gaschromatography;methylacetate;methylacetatecontentbygaschromatography;p-chlorobenzotrifluoride;p-chlorobenzotri
【摘要】:Withtheneedtocalculatevolatileorganiccontent(VOC)ofpaints,andwithacetone,p-chlorobenzotrifluoride,methylacetateandt-butylacetateconsideredasexemptvolatilecompounds,itisnecessarytoknowthecontentoftheseanalytes.Thisgaschromatographictestmethodprovidesarelativelysimpleanddirectwaytodeterminetheircontent.However,becausethedetectorsusedinthistestmethodarenotselective,andbecausesomecoatingsareverycomplexmixtures,compoundsmaybepresentinthesamplethatcoelutewiththeanalyte,givingaresultthatiserroneouslyhigh.Oracomponentmayelutewiththeinternalstandard,givingaresultthatiserroneouslylow.Itisthereforeimportanttoknowthecompositionofthesampletoensurethattherearenointerferences,undertheanalysisconditionsused.TestMethodD6438employsmass-spectraldetectionofanalytesandmaybeusedasanalternativemethod.1.1Thistestmethodisforthedeterminationofthetotal-concentrationofacetone,p-chlorobenzotrifluoride,methylacetate,ort-butylacetate,orcombinationofanyofthefour,insolvent-reducibleandwater-reduciblepaints,coatings,resins,andrawmaterials.Becauseunknowncompoundsthatco-elutewiththeanalytebeingmeasuredorwiththeinternalstandard,willleadtoerroneousresults,thistestmethodshouldonlybeusedformaterialsofknowncompositionsothatthepossibilityofinterferencescanbeeliminated.Theestablishedworkingrangeofthistestmethodisfrom1%to100%foreachanalytebyweight.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:87_060_01
【页数】:5P.;A4
【正文语种】:英语