【英文标准名称】:StandardTestMethodforMonomethylEtherofHydroquinoneinColorlessMonomericAcrylateEstersandAcrylicAcid
【原文标准名称】:测定无色单体丙烯酸酯和丙烯酸中氢醌的单甲基醚的标准试验方法
【标准号】:ASTMD3125-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D01.35
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:丙烯酸酯;丙烯酸;氢醌;试验
【英文主题词】:acrylateesters;acrylicacid;monomericesterofhydroquinone
【摘要】:AcrylicacidanditsestersarenormallyinhibitedwithMEHQonly.ThisprocedurepresentsarapidandaccuratemethodofdeterminingtheMEHQcontentoffreshacrylicacidandacrylateestersintheabsenceofotherinhibitors.MEHQeffectivenessmaydeclinewithageandthisdeclineineffectivenessmaynotbeindicatedbythistestmethod.1.1Thistestmethodcoversthedeterminationofmonomethyletherofhydroquinone(MEHQ)incolorlessmonomericacrylateestersandacrylicacid.ThetestmethodisapplicabletothedeterminationofMEHQintheconcentrationrangefrom0to1200partspermillion.1.2Forpurposesofdeterminingconformanceofanobservedoracalculatedvalueusingthistestmethodtorelevantspecifications,testresult(s)shallberoundedoff"tothenearestunit"inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththerounding-offmethodofPracticeE29.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Forhazardinformationandguidance,seethesupplier''sMaterialSafetyDataSheet.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificprecautionarystatementsaregiveninSection8.
【中国标准分类号】:G17
【国际标准分类号】:71_080_60
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Digitalaudiotaperecorderreeltoreelsystem,using6,3mmmagnetictape,forprofessionaluse;part2:formatA
【原文标准名称】:专业用6.3mm磁带的数字音频盘式磁带录音系统第2部分:格式A
【标准号】:IEC61120-2-1991
【标准状态】:现行
【国别】:国际
【发布日期】:1991-10
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC100
【标准类型】:()
【标准水平】:()
【中文主题词】:录音;电气工程;数字记录法;线圈;测量;磁带
【英文主题词】:Codes;Dataconversion;Digitalrecordingmethods;Electricalengineering;Formats;Magnetictapes;Measurement;Soundrecording;Spools;Studiodevices;Taperecorders
【摘要】:Describesthemaintrackrecording(inclusiveanerrorprotectionmethod),thesub-trackrecordingandthecontrolword.
【中国标准分类号】:M71
【国际标准分类号】:33_160_30
【页数】:39P.;A4
【正文语种】:英语