ISO 3235:1975
Sodium sulphate for industrial use — Determination of acid-insoluble matter
OVERVIEW
Applicable to anhydrous and hydrated products. The principle consists in dissolution of a test portion in water, subsequent addition of hydrochloric acid. Heating on a boiling wather bath for 30 min, filtration, drying and weighing of the residue.
COMMENTS
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PRODUCT DETAILS
| Status | Withdrawn - 06 Jan 2026 |
|---|---|
| Edition | 1975 |
| No. of Pages | 3 |
| ICS Classification | 71.060.50 Salts |
| Committee | ISO/TC 47 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |