supply of isi marked bleaching powder at phe stores of karimganj pkg 04 supply of isi marked bleaching powder for the year 2021-22 for delivery at phe stores of karimganj , supply of isi marked stable bleaching powder conforming to i . s . : 1065 , 1989 with up-to-date amendment , grade-ii ( i ) available chlorine percent by mass min 32% ( ii ) stability loss of chlorine on the basis of initial available chlorine max- 1 / 11 . ( iii ) moisture percent by mass max-0 . 5 ( iv ) particle size ( passing through 1 . 7mm is sieve percent by mass min . -99 . 0 to be delivered at phe stores of karimganj division at karimganj