supply of different chemical as allum , bleaching powder and granular chemical ( aquafit ) at faridkot mil stn , supply of calcium hypochlorite 65 % to 70% 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 by engineer-in-chargemake : sree rayalaseema , hi-strength hypo ltd ( brand puri chlor ) or equivalent as approved by e-in-cs branch . , 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 by engineer-in-charge . ( 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 ) make : acuro organic ltd ( bis certified ) / marudhar alums chemicals pvt ltd ( bis certified ) / punjab acids chemicals ( p ) ltd ( bis certified ) / grasim industries , 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 by engineer-in-charge . make : dcm/ siel / aditya birla .