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ISO 1390-4:1977
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Maleic anhydride for industrial use — Methods of test — Part 4: Determination of maleic anhydride content — Titrimetric method
Published By | Publication Date | Number of Pages |
ISO | 1977-06 | 4 |
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.