These test methods cover the determination of the chemical analysis of commercial solutions of ammoniacal copper quat Type B (ACQ-B). The analytical procedures appear in the following order: Ammonia Quat (Didecyldimethylammonium chloride) Copper (calculated as CuO) The values stated in SI units are to be regarded as the standard. This standard does not purport to address all of the safety concerns, 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.