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ISO 3235:1975 PDF
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Sodium sulphate for industrial use — Determination of acid-insoluble matter
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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| Edition | 1975 |
|---|---|
| Published Date | 1975 |
| Published By | International Standardization Organisation |
| Page Count | 3 |
