... -pool, drinking water, cooling tower&sewage and waste water, food, and farming, Hospital, school, station andhousehold etc ... treatment, such as:Trichloroisocyanuric acid, sodium dichloroisocyanurate, BCDMH and calciumhypochlorite (sodium process & calcium process) CAS No.: ... -pool, drinking water, cooling tower&sewage and waste water, food, and farming, Hospital, school, station andhousehold etc ...