ASTM D2081-92(1998)

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 is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.>