1.1 This test method covers the preparation of 5% solutions of fatty quaternary ammonium chlorides and the determination of their pH. 1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It
ASTM
Standard Test Method for pH of Fatty Quaternary Ammonium Chlorides (Withdrawn 2007)
STD-52512
1992
1998-05-10
2