bids are invited for copra regeneration solution for sodium electrodes - regeneration solution for sodium electrodes, 500 ml, catalogue no. a-85.810.200 , electrolyte for swan sensor sodium reference - electrolyte for swan sensor sodium reference, 100ml,catalogue no. a 87.892.400 , silica standard solution 100ppm, bottle with 100ml - silica standard solution 100ppm, bottle with 100ml,catalogue no. 85.142.400 , sodium standard solution 1000ppm, bottle with 100ml - sodium standard solution 1000ppm, bottle with 100ml,catalogue no. a-85.141.400 , reagent set for copra silica - reagent set for copra silica, for 6 month, catalogue no. a-85.420.131 (without sulphuric acid ) , tubing kit for copra silica - tubing kit for copra silica, catalogue no. a 86.190.010 for silica analyzer , air filters - air filters p/n c 82.880.010 for sodium analyzer , reagent filter insert - reagent filter insert, p/n a 82.811.021 for silica analyzer total quantity : 13