Applicable to products having Mn-contents in the range 0,006 % to 0,4 %. Decomposition of the test portion with nitric and perchloric acids. After dilution follows oxidation of manganese to permanganate with sodium metaperiodate. Spectrometric measurement at 545 nm.
Status : WithdrawnPublication date : 1992-12
Edition : 2Number of pages : 4
Technical Committee:ISO/TC 175Fluorspar