Manganese ores and concentrates -- Determination of potassium and sodium content -- Flame atomic emission spectrometric method
适用范围：The method is applicable to a concentration range of 0,08 to 3 % (m/m) of potassium and 0,02 to 1 % (m/m) of sodium. ISO 4571 should be read in conjunction with ISO 4297. Specifies principle, reagents,...
发布日期：1981-03-01 实施日期：1981-03-01
Products derived from fruit and vegetables. Determination of tin content.
实施日期：1970-12-01
Sodium fluoride primarily used for the production of aluminium -- Determination of iron content -- 1,10- Phenanthroline photometric method
适用范围：Applicable to the determination of Fe contents, expressed as Fe2 O3 , of more than 0.020 % (m/m). Covers the dissolution of a test portion by alkaline fusion by means of sodium carbonate and boric acid...
发布日期：1976-07-01 实施日期：1976-07-01
Chemical analysis of ferro-vanadium. Spectrophotometric determination of phosphorus.
Water quality. Determination of phenol index. 4-aminoantipyrine spectrometric methods after distillation second edition
适用范围：Gives procedures for drinking waters, surface waters, brines (saline waters), domestic waters and industrial waters. After a preliminary distillation the test sample are analysed according to specific ...
实施日期：1990-01-01
Iron ores. Determination of titanium content. Spectrophotometric determination.
实施日期：1986-11-01
Sodium fluoride primarily used for the production of aluminium -- Determination of silica content -- Reduced molybdosilicate spectrophotometric method
适用范围：Specifies a spectrophotometric method, using the reduced molybdosilicate, for determining the silica content of sodium fluoride. Applicable to products of which the phosphorus pentoxide content does no...
发布日期：1976-08-01 实施日期：1976-08-01
Chemical analysis of manganese ores. Spectrophotometric determination of phosphorus.
实施日期：1969-10-01
Aluminium ores - Determination of vanadium content -- BPHA spectrophotometric method
适用范围：Is applicable to ores containing between 0,005 % (m/m) and 0,1 % (m/m) of vanadium pentoxide. Specifies principle, reagents, apparatus, sampling and samples, procedure, expression of results and test r...
发布日期：1989-10-01 实施日期：1989-10-01
Paints and varnishes. Determination of the "soluble" arsenic content. Atomic absorption spectrometric method and silver diethyldithiocarbamate method.
实施日期：1984-05-01
Chemical analysis of magnesium and magnesium alloys. Spectrophotometric determination of copper.
实施日期：1976-02-01
Sulphur for industrial use -- Determination of arsenic content -- Silver diethyldithiocarbamate photometric method
适用范围：Applicable to products having As contents equal or more than 0.5 mg/kg. In a well-ventilated cupboard, dissolution of a test portion in carbon tetrachloride. Oxidation of sulphur by bromine and nitric ...
发布日期：1976-09-01 实施日期：1976-09-01
Copper and copper alloys -- Determination of antimony content -- Rhodamine B spectrometric method
适用范围：The method is applicable to antimony contents between 0.001 and 0.1 % (m/m) in all types of copper and copper alloys listed in International Standards. The range of application may be extended by appro...
发布日期：1984-04-01 实施日期：1984-04-01
Paints and varnishes. Determination of soluble metal content. Determination of water soluble chromium (vi).
Sodium hydrogen carbonat for industrial use. Determination of iron content 1,10 phenanthroline photometric method.
Aluminium oxide primarily used for the production of aluminium -- Determination of sodium content -- Flame emission spectrophotometric method
适用范围：The method is applicable to sodium contents equal to or greater than 0.05 % (m/m). The principle of the procedure consists in the fusion, at a controlled temperature, of a test portion with a mixture o...
发布日期：1976-09-01 实施日期：1976-09-01
Chemical analysis of lead. Colorimetric determination of zinc.
实施日期：1957-04-01
Cryolite, natural and artificial -- Determination of iron content -- 1,10- Phenanthroline photometric method
适用范围：Applies for the determination of natural and synthetic materials having a molar ratio sodium fluoride/aluminium trifluoride between 3 and 1,7 approximately. The method is applicable to products having ...
发布日期：1976-09-01 实施日期：1976-09-01
Fruit and vegetable products -- Determination of benzoic acid content (benzoic acid contents greater than 200 mg per litre or per kilogram) -- Molecular absorption spectrometric method
适用范围：The method consists in extracting the acid from an acidified test portion using diethyl ether, nitrating followed by reduction and Mohler''s reaction modified with hydroxylaminehydrochloride, measuring...
发布日期：1983-11-01 实施日期：1983-11-01
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