supply of disinfectionate chemicals for water treatment at different water supply installation under ge misamari:-1 supply only calcium based high strength granular chlorination chemical which is a white to off white free flowing granular material free of foreign matter, decomposing at 177 oc, decomposes in water and alcohol, not hygroscopic, practically clear in water solution at saturation leve, molecular weight 142.9, toxicity oral rate ld 50:850 mg / kg in 45.00 kilogram bag / packing, complete all as specified. nmake: puri chlor brand manufactured by rayalaseema hi strength hypo ltd or equivalent of any other make approved by e-in-c. 2 supply only poly aluminium chloride ( pac ) inorganic soluble polymer raw water flocculants powder in 25.00 kilogram bag / packing conforming to the following specifications:- n ( a ) bulk dencity / specific gravity at 20º c : 0.75 + 0.10. n ( b ) ph value of aqueous solution ( w / v ) : 3.5 - 5.0 ( 1% ) n ( c ) choride content ( w / w ) : 31.0% + 2.0 % n ( d ) sulphate content : 10 % ( max ) n ( e ) basicity : 8 / 22 / 2013 40.0 + 5.0 n ( f ) mercury & lead : not desirable nmake: as approved by ge. 3 supply only alum ferric alum gde-i in 20.00 kilogram bag / packing, conforming to bis-299-199 ( 4th revision ) , complete all as specified. n make: as approved by ge. 4 supply only non ferric alum crystal type, conforming bis 260-2001 ( 2nd revision ) , complete all as specified. n make: as approved by ge. 5 supply only bleaching powder conforming to is-1065-199 ( 2nd revision ) minimum markable chlorine 33.5% by mass packed in 25.00 kilogram hdfc bag / packing, isi marked, complete all as specified. 6 supply only lime ( unslaked ) suitable for drinking purposes, as approved by ge ) , complete all as specified. nnote: applicable for all items n ( a ) the contractor shall produce manufactures ‘certificate of compliance’ indicating date of manufacture in original alongwith every consignment of supply. n ( b ) ‘test certificate’ from govt approved test laboratory shall accompany with every consignment of supply to ensure that the materials supplied are in with conformity with the relevant is. 7 supply only hydrogen peroxide 50% w / w aqueous solution into floc 238, complete all as specified. nmake: as approved by ge.