... synthesis pipes/fittings, protective coatings, water treatment agent, detergent, water quality conditioner and other new materials and chemicals, which are in contact with drinking ... (bleach), sodium dichloroisocyanurate, trichloroisocyanuric acid, chlorine) 4.1Water Flocculants, Water coagulant PAC (basic aluminium chloride, aluminum chlorohydrate), ferric sulfate, ferrous sulfate, ferric ...