ISO 2899-1974 工业用硫酸和发烟硫酸氨态氮含量的测定分光光度法

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【英文标准名称】:Sulphuricacidandoleumsforindustrialuse;Determinationofammoniacalnitrogencontent;Spectrophotometricmethod
【原文标准名称】:工业用硫酸和发烟硫酸氨态氮含量的测定分光光度法
【标准号】:ISO2899-1974
【标准状态】:作废
【国别】:国际
【发布日期】:1974-04
【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】:分光光度测量分析;氮;氨态氮;硫酸;含量测定;分光光度法;发烟硫酸;化学分析;化学分析和试验
【英文主题词】:chemicalanalysis;sulphuricacid;determinationofcontent;nitrogen;oleum;ammoniacalnitrogen;spectrophotometry;spectrophotometricanalysis;chemicalanalysisandtesting
【摘要】:Applicabletoproductshavingcontentsofmorethan0.0001%(m/m).Theproceduredescribedissuitableforcontentsbetween0.0001%(m/m)and0.0005%(m/m).Itbasesondistillation,withentrainmentbysteam,oftheammoniainthepresenceofanexcessofsodiumhydroxideandcollectionofthedistillateinanexcessofacidsolution.Neutralizationofthedexcessofacidandformationofthecolouredcomplexbytreatmentwithsodiumphenateandsodiumhypochloriteinthepresenceofacetone.Spectrophotometricmeasurementoftheindophenolobtainedatawavelengthofabout630nm.HasalsobeenapprovedbytheIUPAC.
【中国标准分类号】:G10
【国际标准分类号】:0520;5603
【页数】:5P;A4
【正文语种】:英语


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【英文标准名称】:Testmethodsoflaserdiodemodulesforfiberoptictransmission
【原文标准名称】:光纤传输用激光二极管组件的试验方法
【标准号】:JISC5945-1996
【标准状态】:作废
【国别】:日本
【发布日期】:1996-09-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:TechnicalCommitteeonElectronics
【标准类型】:()
【标准水平】:()
【中文主题词】:电学测量;模数;光电二极管;激光器;半导体器件;光通信系统
【英文主题词】:lasers;semiconductordevices;photodiodes;opticalcommunicationsystems;modules;electricalmeasurement
【摘要】:
【中国标准分类号】:L51
【国际标准分类号】:31_260;33_180_01
【页数】:19P;A4
【正文语种】:日语


Product Code:SAE AMS4193
Title:Aluminum Alloy, Sheet and Plate, 4.4cu 1.5mg 0.60mn, Solution Heat Treated, Cold Worked, and Precipitation Heat Treated
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers an aluminum alloy in the form of flat sheet and plate 0.500 inch (12.70 mm) and under in nominal thickness. Primarily for structural parts of good strength. These products, when re-heat treated by the user, may not have the tensile properties shown. Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking; ARP 823 recommends practices to minimize such conditions.