90.93 Standard confirmed Mar 25, 2022
ISO
ISO/TC 132 Ferroalloys
International Standard
73.060.20 Manganese ores
Published
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 conditions for sampling and preparation of samples and experiments for bias of sampling and of sample preparation, gives a data analysis and reviews results.
PUBLISHED
ISO 8541:1986
90.93
Standard confirmed
Mar 25, 2022