1.1 This test method covers the determination of inorganic“ active oxygen” in bleaching compounds such as perborates, percarbonates, and peroxides but not in persulfate This test method covers the determination of inorganic active oxygen in bleaching compounds such as perborates, percarbonates, and peroxides by titration of an acidified aqueous solution with a standard solution of potassium permanganate. Tests shall u