Chromium ores and concentrates -- Determination of chromium content -- Titrimetric method
适用范围：The method is applicable to products having a chromium content greater than 7 % (m/m). Should be read in conjunction with ISO 6629. Specifies principle, reagents, apparatus, procedure and expression of...
发布日期：1983-11-01 实施日期：1983-11-01
Chromium ores and concentrates -- Determination of aluminium content -- Complexometric method
适用范围：The method is applicable to a concentration range of 1.5 to 20.0 % (m/m) of aluminium. ISO 8889 should be read in conjunction with ISO 6629. Specifies principle, reagents, apparatus, sample, procedure ...
发布日期：1988-02-01 实施日期：1988-02-01
Chemical analysis of chromium ores. Determination of phosphorus. Spectrophotometric method.
实施日期：1976-12-01
Manganese and chromium ores -- Experimental methods for checking the precision of sample division
适用范围：The checking applies to manganese and chromium ores, whether natural or processed, being carried out in accordance with the methods specified in the relevant International Standards. Includes general c...
发布日期：1986-10-01 实施日期：1986-10-01
Chromium ores -- Determination of phosphorus content -- Reduced molybdophosphate photometric method
适用范围：The method is applicable to products having a phosphorus content of 0,002 to 0,1 % (m/m). ISO 6127 should be read in conjunction with ISO 6629. Specifies principle, reagents, apparatus, procedure and e...
发布日期：1981-03-01 实施日期：1981-03-01
Manganese and chromium ores -- Experimental methods for checking the precision of moisture determination
适用范围：The checking applies to manganese and chromium ores, whether natural or processed, being carried out in accordance with the methods specified in the relevant International Standards. Includes condition...
发布日期：1986-11-01 实施日期：1986-11-01
Chemical analysis of chromium ores. Determination of iron oxide. Titrimetric method.
实施日期：1976-12-01
Chemical analysis of chromium ores. Determination of silica (gravimetric method).
Chromium ores -- Determination of total iron content -- Titrimetric method after reduction
适用范围：The method is applicable to chromium ores with iron content of 0,5 to 32 % (m/m). Should be read in conjunction with ISO 6629. Specifies principle, reagents, apparatus, sampling and samples, procedure ...
发布日期：1985-11-01 实施日期：1985-11-01
Chromium ores -- Determination of hygroscopic moisture content in analytical samples -- Gravimetric method
适用范围：The method is intended to be carried out simultaneously with the determination of other constituents of the same analytical sample so that the contents of the other constituents can be calculated on th...
发布日期：1981-05-01 实施日期：1981-05-01
Manganese and chromium ores -- Experimental methods for checking the bias of sampling and sample preparation
适用范围：The checking applies to manganese and chromium ores, whether natural or processed, being carried out in accordance with the methods specified in the relevant International Standards. Includes general c...
发布日期：1986-10-01 实施日期：1986-10-01
Chromium ores -- Determination of calcium and magnesium contents -- EDTA titrimetric method
适用范围：The method is applicable to products having a calcium content greater than 0,1 % (m/m) and a magnesium content greater than 3,0 % (m/m). Should be read in conjunction with ISO 4297. Specifies principle...
发布日期：1983-07-01 实施日期：1983-07-01
Chemical analysis of chromium ores. Determination of chromium oxide. Titrimetric method.
实施日期：1975-12-01
Sampling of manganese or chromium ores.
适用范围：La présente norme a pour objet la description des méthodes d'échantillonnage des minerais de manganèse ou de chrome. Elle comporte deux parties applicables respectivement : Première partie : aux minera...
实施日期：1960-01-01
Chromium ores and concentrates -- Determination of silicon content -- Molecular absorption spectrometric method and gravimetric method
适用范围：The molecular absorption spectrometric method (A) is applicable to products having silicon contents from 0,05 to 0,5 % (m/m), the gravimetric method (B) is applicable to products having silicon content...
发布日期：1984-11-01 实施日期：1984-11-01
Manganese and chromium ores -- Experimental methods for evaluation of quality variation and methods for checking the precision of sampling
适用范围：Specifies experimental methods for the evaluation of quality variation of manganese and chromium ores, whether natural or processed, for the purpose of defining sampling procedure by the mass-basis sys...
发布日期：1986-11-01 实施日期：1986-11-01
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