supply of water treatment chemicals to the domestic water used for centralized air conditioning plant in amma maligai ripon building premises for one year period in div 58 zone v supply of water treatment chemicals to the domestic water used for centralized air conditioning plant in amma maligai ripon building premises for one year period in div 58 zone v , name of the chemicals used for treatment of waterfor centralized air conditioning plant for one year for the following applications , antiscalent , corrosion inhibitor , bio dispersant , oxidizing biocide , non oxidizing biocide , ph controller , corrosion inhibitor for closed loop => limited