ISO 6130:1985 Preview
Chromium ores -- Determination of total iron content -- Titrimetric method after reduction
This standard was last reviewed and confirmed in 2016. Therefore this version remains current.
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 and expression of results. Includes a warning to the dangers involved in the use of perchloric acid and hydrofluoric acid.