ISO 7953:1985 Preview
Manganese ores and concentrates -- Determination of calcium and magnesium contents -- Flame atomic absorption spectrometric method
This standard was last reviewed and confirmed* in 2016.
*Therefore this version remains current
The method is applicable to products having calcium contents from 0,01 to 15 % (m/m) and magnesium contents from 0,01 to 4 % (m/m). ISO 7953 should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sampling and samples, procedure and expression of results.