【英文标准名称】:StandardTestMethodforAldehydesinMono-,Di-,andTriethyleneGlycol(SpectrophotometricMethod)
【原文标准名称】:单乙二醇中醛的测试方法(光谱光度测量法)
【标准号】:ASTME2313-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E15.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ldehyde;diethyleneglycol;MBTH;monoethyleneglycol;spectrophotometric;triethyleneglycol;Aldehydes;MBTH;Methyl-benzothiazolinonehydrazonehydrochloride(MBTH);Monoethyleneglycol(MEG);Spectrophotometry
【摘要】:KnowledgeofthealdehydecontentofMonoethyleneglycolisrequiredtoestablishwhethertheproductmeetstherequirementsofitsqualityspecifications.1.1Thistestmethoddescribesthespectrophotometricdeterminationoftotalaldehydecarbonylcontentintherangeof0.5to50mg/kg(asacetaldehyde)or0.3to35mg/kg(asformaldehyde)inmono-,di-,andtriethyleneglycol(MEG,DEGandTEG).Alkoxyalcohols(hemiacetals),ifpresent,areco-determined,whereasdialkoxyalkanes(acetals),ifpresent,arenot.Theresultsprovideameasureofthepurityofthesamplewithrespecttototalaldehydecarbonylcontent.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3ReviewthecurrentmaterialSafetyDataSheets(MSDS)fordetailedinformationconcerningtoxicity,firstaidproceduresandsafetyprecautions.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G17
【国际标准分类号】:71_040_40
【页数】:5P.;A4
【正文语种】:英语


【英文标准名称】:Aerospaceseries-Metricbolts,normalhexagonhead,coarsetolerancenormalshank,shortthread,intitaniumalloy,anodized,MoSlubricated-Classification:1100MPa(atambienttemperature)/315°C;GermanandEnglishversionEN3820:2006
【原文标准名称】:航空航天系列.MoS润滑的阳极氧化钛合金短螺纹紧公差标准杆标准六角头米制螺栓.等级:1100MPa(室温)/315℃
【标准号】:EN3820-2006
【标准状态】:现行
【国别】:
【发布日期】:2007-09
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;航空运输;合金;阳极化的;特征;交货条件;名称与符号;尺寸;紧固件;六角(边)形;六角头螺钉;作标记;材料;米制螺纹;多语种的;特性;螺钉;航天运输;规范(验收);表面处理;螺纹;钛;钛合金
【英文主题词】:Aerospacetransport;Airtransport;Alloys;Anodised;Characteristics;Deliveryconditions;Designations;Dimensions;Fasteners;Hexagon;Hexagonheadscrews;Marking;Materials;Metricscrewthreads;Multilingual;Properties;Screws(bolts);Spacetransport;Specification(approval);Surfacetreatment;Threads;Titanium;Titaniumalloys
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_20
【页数】:21P.;A4
【正文语种】:英语