Chromium metal - Determination of sulfur content - Infrared absorption method and combustion-neutralization titration method
适用范围:本部分规定了红外线吸收法和燃烧中和滴定法测定金属中铬中硫含量。 本部分适用于金属铬中硫含量的测定。其中红外法测定范围(质量分数):0.005%~0.045%;燃烧中和滴定法测定范围(质量分数):0.005%~0.070%。
发布日期:2008-05-13 实施日期:2008-11-01
Chemical products for industrial use-General method for determination of traces of sulphur compounds, as sulphate, by reduction and titrimetry
适用范围:本标准规定了工业用化工产品中以硫酸根表示的痕量硫化合物测定的通用方法——还原和滴定法。 在可采用本方法的化工产品标准中应规定处理试料的方法,以使硫化合物转变为硫酸盐,必要时可对通用操作步骤进行可能需要的任何改...
发布日期:2008-04-01 实施日期:2008-09-01
Methods of chemical analysis of soda-lime-alumina and borosilicate glass--Determination of content of ferrous oxide
Surface active agents, technical alkyl-sulphonates, determination of alkyl-monosulphonates content (direct twophase titration method)
Verfahren zur Analyse von Futtermitteln. Bestimmung des Kalziumgehalts durch Titration Methods for Analysis of Animal Feeding Stuffs Part 11:Determination of Calcium by Titration Methodes d'analyse des...
适用范围:Ashing, dissolving in acid, precipitation of calcium oxalate and titration with permanganate.
实施日期:1986-01-01
Sodium hydroxide for industrial use -- Determination of chloride content -- Mercurimetric method
适用范围:The method is applicable to products of which the chloride content is greater than 0.005 % (m/m). The procedure based on titration of the chloride ions with mercury(II) nitrate in the presence of diphe...
发布日期:1973-02-01 实施日期:1973-02-01
Method for Determining Calcium Oxide in Dolomite (EDTA Titration Method)
发布日期:1982-09-08 实施日期:1982-09-08
Water quality. Determination of free chlorine and total chlorine. Part 3:Iodometric titration method for the determination of total chlorine second edition
适用范围:Specifies a procedure for water. It is applicable for the measurement of concentrations, in terms of chlorine, from 0,01 to 0,21 mmol/l. The interfering substances are given. In annex B a procedure for...
实施日期:1990-01-01
Determination of chemical compositions and physical properties of aluminum powder,magnesium powder and Al-Mg alloy powder-Part 1:Determination of active Al,Mg or Al-Mg content-Gasometric method
发布日期:2007-04-13 实施日期:2007-10-01
Fertilizers -- Determination of ammoniacal nitrogen content -- Titrimetric method after distillation
适用范围:The method consists in distilling of the ammonia from an alkaline solution, absorbing in an excess of standard volumetric sulphuric acid solution and back-titrating with standard volumetric sodium hydr...
发布日期:1981-05-01 实施日期:1981-05-01
Methods for chemical analysis of xanthates--The acetic acid titration method for determination of free alkali content
Modified starch -- Determination of carboxyl group content of oxidized starch
发布日期:1996-07-01 实施日期:1996-07-01
Surface active agents -- Technical alkane sulfonates -- Determination of alkane monosulfonates content by direct two-phase titration
适用范围:The determination is carried out in a consisting of an aqueous phase and a chloroform phase, in the presence of sodium sulfate, by titration against a standard volumetric cationic-active solution (benz...
发布日期:1988-05-31 实施日期:1988-05-31
Methods for chemical analysis of iron,steel and alloy--The combustion potassium iodate volumetric method for the determination of sulfur content
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