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ISO 1390-3:1977 PDF
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Maleic anhydride for industrial use — Methods of test — Part 3: Determination of free acidity — Potentiometric method
The procedure is based on the potentiometric titration of the free acidity in a test portion with a standard volumetric triethylamine solution in anhydrous methyl ethyl ketone (butanone). – ISO 1390, Parts 1 to 6, replace ISO Recommendation R 1390-1970.
| Edition | 1977 |
|---|---|
| Standard Part No | 3 |
| Published Date | 1977 |
| Published By | International Standardization Organisation |
| Page Count | 2 |
