ISO 1390-3:1977
Maleic anhydride for industrial use; Methods of test; Part III : Determination of free acidity; Potentiometric method
- Standard No.
- ISO 1390-3:1977
- Release Date
- 1977
- Published By
- International Organization for Standardization (ISO)
- Status
- 2002-05
- Latest
- ISO 1390-3:1977
- Scope
- 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.
ISO 1390-3:1977 history
- 1977 ISO 1390-3:1977 Maleic anhydride for industrial use; Methods of test; Part III : Determination of free acidity; Potentiometric method
