ISO 621:1981
Manganese ores; Determination of metallic iron content (metallic iron content not exceeding 2 %); Sulphosalicylic acid photometric method

Standard No.

ISO 621:1981

Release Date

1981

Published By

International Organization for Standardization (ISO)

Latest

ISO 621:1981

Scope

This second edition cancels and replaces the first edition (i.e. ISO 621-1975). Specifies principle, reagents, apparatus, sample, procedure and expression of results.

ISO 621:1981 history

• 1981 ISO 621:1981 Manganese ores; Determination of metallic iron content (metallic iron content not exceeding 2 %); Sulphosalicylic acid photometric method
• 1975 ISO 621:1975 Title missing - Legacy paper document