ISO 981:1973 PDF
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Sodium hydroxide for industrial use — Determination of chloride content — Mercurimetric method
The method is applicable to products of which the chloride content is greater than 0.005 % (m/m). The procedure based on titration of the chloride ions with mercury(II) nitrate in the presence of diphenylcarbazone as indicator. – Replaces ISO Recommendation R 981-1969.
| Edition | 1973 |
|---|---|
| Published Date | 1973 |
| Published By | International Standardization Organisation |
| Page Count | 2 |
