Tender For supply of water sample testing - ph , turbidity , total suspended solids , t alkalinity , iron as fe , fluoride , tds , total hardness ca and mg , bod or cod , silt density index , sulphates , nitrates as no3 , potassium , phosphates , total silica reactive silica and colloidal silica , ammoniacal nitrogen as nh4 , chloride , sodium , conductivity , free residual chlorine , kmno4 value at 100 degree centigrade , oil and grease , total copper , hydroxy ethylidiene diphosphonic acid , sodium hexametaphosphate , polymeric dispersant , benzotriazole , total kjeldahi nitrogen , total nitrogen , faecal coliform , sodium adsorption ratio , residual sodium carbonates , phenols , sulphides , ammonia as nh4 , dissolved oxygen , mlvss , svi , orp , m alkalinity , hc in water , sio2 in water , total solid content in sludge , hcl purity , naoh purity