【英文标准名称】:Anhydroushydrogenfluorideforindustrialuse;Determinationofhexafluorosilicicacidcontent;Reducedmolybdosilicatephotometricmethod
【原文标准名称】:工业用无水氟化氢六氟硅酸含量的测定还原硅钼酸盐光度法
【标准号】:ISO3701-1976
【标准状态】:作废
【国别】:国际
【发布日期】:1976-06
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC47
【标准类型】:()
【标准水平】:()
【中文主题词】:酸;连接;分光光度法;化学分析和试验;氟化氢;含量测定
【英文主题词】:determinationofcontent;chemicalanalysisandtesting;hydrogenfluoride;acids;connections;spectrophotometry
【摘要】:ApplicabletoproductshavingH2SiF6contentsbetween0.01%(m/m)and0.2%(m/m).Givesintroductoryinstructionstotheriskinhandlingwiththeproduct.Theprincipleofanalysisconsistsinformationofoxidizedmolybdosilicate(yellow)inweaklyacidmediuminthepresenceofboricacidtosuppressinterferencebyfluorine.Selectivereductionofthiscomplexafteradditionofsulphuricacidsolutionandoxalicacidtoeliminateinterferencefromphosphates.Photometricmeasurementofthebluecolouredcomplexatawavelengthofabout795nm.
【中国标准分类号】:G11
【国际标准分类号】:71_060_30
【页数】:4P;A4
【正文语种】:英语
MIL-PRF-123/16A, PERFORMANCE SPECIFICATION SHEET, CAPACITORS, FIXED, CERAMIC DIELECTRIC (TEMPARATUR STABLE AND GENERAL PURPOSE), HIGH RELIABILITY, LEADED, STYLE CKS22 (18 JUN 2001)., This specification is approved for use by all Departments and Agencies of the Department of Defense.