Withdrawn
This second edition cancels and replaces the first edition (i.e. ISO 621-1975). Specifies principle, reagents, apparatus, sample, procedure and expression of results.
WITHDRAWN
ISO 621:1981
95.99
Withdrawal of Standard
Aug 13, 2014
Manganese ores — Determination of metallic iron content (metallic iron content not exceeding 2 %) — Sulphosalicylic acid photometric method
95.99 Withdrawal of Standard