Tender For supply of set of chemical consist of 5 items (1.) ferrous ammonium sulphate,qty-500 gm x 6 nos,2.) silver sulphate, qty-25 gmx10, 3.)sulphuric acid qty.-5 ltrs x 10 nos, 4.) mercuric sulphate 250 gm x 6 nos, 5.) ferroin indicator qty. 100 ml x 6 nos.) [ warranty period: 30 months after the date of delivery ]