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ISO 1390-4:1977 PDF
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Maleic anhydride for industrial use — Methods of test — Part 4: Determination of maleic anhydride content — Titrimetric method
The principle consists in the dissolution of a test portion in diluted standard volumetric sodium hydroxide solution and titration with standard volumetric sodium hydroxide solution in presence of phenolphthalein as indicator. – ISO 1390, Parts 1 to 6, replace ISO Recommendation R 1390-1970.
| Edition | 1977 |
|---|---|
| Standard Part No | 4 |
| Published Date | 1977 |
| Published By | International Standardization Organisation |
| Page Count | 2 |
