1,Trichloroisocyanuric Acid 2,TCCA in powder, granular and tablets 3,Packed in 1kg tube, ... pail Usage:Used as biocide in swimming pool, industrial cycling water, dringking water; Sterilzing agent in hospital, public; Bleaching agent in textile ... .314. AppearancePowder,granular(8-30mesh ,20-40mesh,20-60mesh) or tablet with irritant odor(1g, 5g, 10g, 15g, 20g, 30g, 50g ...