procurement of water purifying additives for water treatment plant in dnh for the year 2025-26 (3rd call) , supply of alum ferric is 299:1989 grade-1 insoluble matter,(percentage by mass max)0.50 soluble iron compound(percentage by mass max)0.70 water soluble aluminium (percentage by mass max) 16.00 compound (alco 3) ph (5% acqueas solution) minium2.70 basicity as a1203 (percentage by mass max)0.5 , refilling of chlorine gas cylinder of 900kg chlorine tank for water treatment plant at d&nh including transportation loading and unloading. , refilling of chlorine gas cylinder of 100kg chlorine tank for water treatment plant at silvassa including transportation loading and unloading. , supplying of sodium hypochlorite solution ( chlorite soluation with drug license as per is- 11673- 1986 grade i.u.s.p in 25/20 lit. packing including mantenance of all accurate chlorination system fitted at various water supply scheme and spare one person for all time to maintain the chlorination system at different places in u.t. no any extra labour charges will be paid for maintenances. , supply of bleaching powder in 25 kg. packing bears following characteristic as per are 1065:1989. method of requirement testgrade 02 i. available chlorine percent by mass minimum32.00 a-2 ii. stability loss of chlorine on the basis of1/11 a-3initial available chlorine mas iii. misture persent by mass, max0.50 a-4 iv. particle size (passing through 1.70 mm is sieve 99.00 a-5 ( precentage by mass, minimum.