supply of different chemical as allum , bleaching powder and granular chemical ( aqualif ) at faridkot mil stn - 1 supply of calcium hypochlorite 65% to 75% chlorine content ( calcium based white to off white, free flowing, solid granular form chlorination chemical ) in 45 kg packing in plastic drum complete all as specified and directed. nmake : sree rayalaseema, hi-strength hypo ltd ( brand puri chlor ) or equivalent as approved by e-in-cs branch. 2 supply of alum ferric ( grade-4 ) in crystal form ( best quality as per sample ) with additional requirement for purification of water containing lead ( as pb ) 30 ppm max and arsenic ( as 203 ) 6ppm max, confirming to is-299 / 2012 ( revised ) as amended up-to-date complete all as specified and directed. ( note:- the alumino ferric shall be supplied in superior quality bricks ( slabs ) as per is specifications. manufacturers name / trade mark shall be engraved on each brick ( slab ) in addition to marking of relevant clause of is specification ) nmake : acuro organic ltd ( bis certified ) / marudhar alums chemicals pvt ltd ( bis certified ) / punjab acids chemicals ( p ) ltd ( bis certified ) / grasim industries 3 supply only bleaching powder, white, fine, free flowing powder of specific gravity 2.35 @ 200 degree centrigrade soluble in water available chlorine content not less than 30%using for treatment of water treatment packed in 25kg hdpe bags with double inner liner complete all as specified and directed. make : dcm / siel / aditya birla. 4 supply only tri chloriso-cuanuric acid ( tcca-90 ) calcium based granular disinfactent for water treatment packing in 50 kg plastic drum complete all as specified and directed. 5 supply only copper sulphate of best quality and of degree as approved by ge complete all as specified and directed. 6 supply only allum sulphate ( fitkari ) in crystal form packing in 50 kg bag pure white colour suitable for swimming pool complete all as specified and directed. nnote : grade iv in slab form used in water supply will not be acceptable ) . 7 supply only scs-10k ( chlorine dioxide ) powder for disinfection of treated water complete all as specified and directed. make : bharti waters pvt ltd or equivelant