ISO 7990:1985
Manganese ores and concentrates — Determination of total iron content — Titrimetric method after reduction and sulfosalicylic acid spectrophotometric method
OVERVIEW
Method A is applicable to products having a total iron content from 1 to 25 % (m/m), and method B is applicable to products having a total iron content from 0.2 to 2 % (m/m). ISO 7990 should be read in conjunction with ISO 4297. Specifies principle, reactions (method A only), reagents, apparatus, sampling and samples, procedure and expression of results.
COMMENTS
-
PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1985 |
| No. of Pages | 6 |
| ICS Classification | 73.060.20 Manganese ores |
| Committee | ISO/TC 132 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |