Reference number
ISO 1390-4:1977
ISO 1390-4:1977
© ISO 2024
ISO 1390-4:1977
Maleic anhydride for industrial use — Methods of test — Part 4: Determination of maleic anhydride content — Titrimetric method
Edition 1
1977-06
1977-06
Retirada
Resumen
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.