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ISO 1577:1987 PDF
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Tea — Determination of acid-insoluble ash
The method consists in treating of the total ash (obtained as described in ISO 1575) with hydrochloric acid solution, filtrating, igniting and weighing of the residue.
| Edition | 1987 |
|---|---|
| Published Date | 1987 |
| Published By | International Standardization Organisation |
| Page Count | 2 |
