bids are invited for 100 ppm chloride standard solution , 100 ppm copper standard solution , 100 ppm manganeese standard solution - 100 ppm manganese standard solution , 1000 ppm iron standard solution , ammonium chloride , n butyl alcohol , calcium carbonate , copper sulphate , dithizone , edta , eriochrome black t , ethyl alcohol , ferrous ammonium sulphate , hydrochloric acid , magnesium carbonate , methyl orange indicator , methyl red indicator , nitric acid , potassium hydroxide , potassium periodate , potassium permanganate , potassium thio cyanate , silver nitrate , sodium bicarbonate , sodium chloride , sodium hydroxide , sodium nitrate , sulphuric acid , silver nitrate cvs packet of 6 pieces , hydrochloric acid cvs packet of 6 pieces , nitric acid cvs packet of 6 pieces , sodium hydroxide cvs packets of 6 pieces , ph buffers 4.0, 7 and 10 1 litre each - ph buffers 4.0 7.0 10.0 1 litre each , conductivity standards 100, 500 and 800 micro siemens 1 litre each - conductivity standards 100 500 and 800 micro siemens 1 litre each) total quantity : 19055