ISO 2521:1974
Tritolyl phosphate for industrial use; Determination of acidity to phenol red; Volumetric method
- Standard No.
- ISO 2521:1974
- Release Date
- 1974
- Published By
- International Organization for Standardization (ISO)
- Status
- 2002-05
- Latest
- ISO 2521:1974
- Scope
- Specifies the titration of any acidity present in an ethanolic solution with standard volumetric sodium hydoxide solution in the presence of phenol red as indicator. The end point of the titration corresponds to the formation of the salt Na2 HPO4 .
ISO 2521:1974 history
- 1974 ISO 2521:1974 Tritolyl phosphate for industrial use; Determination of acidity to phenol red; Volumetric method
