Revision of D7884-24 Standard Test Method for Determination of 4-Carboxybenzaldehyde and p-Toluic Acid in Purified Terephthalic Acid by Reverse Phase High Performance Liquid Chromatography
Rationale
A new method with gradient elution mode was added to D7884-24. The precision section of the standard related to the gradient elution mode needs to be updated with the results of the ILS program completed in 2024.