This standard specifies waterborne preservatives and flame retardants pH, ammonia, arsenic, chromium, copper, phosphate, boron, citric acid, didecyldimethylammonium chloride (DDAC) or dodecylbenzyl Analytical methods for active ingredients such as dimethylammonium chloride (BAC). This standard is applicable to the determination of the pH value of treatment solutions, the determination of ammonia in ammonia-soluble preservatives and flame retardants, the determination of arsenic in arsenic-containing preservatives, the determination of chromium in chromium-containing preservatives, and the determination of copper in copper-containing preservatives. , Determination of phosphate in C-type flame retardant formula, determination of boron in sodium tetraborate wood preservative and its prepared treatment solution, determination of citric acid content in preservatives, determination of DDAC (BAC) content in ACQ preservative Determination