ISO 3235:1975
$12.35
Sodium sulphate for industrial use — Determination of acid-insoluble matter
| Published By | Publication Date | Number of Pages |
| ISO | 1975-07 | 5 |
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.
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