tender for set of chemicals/consumables for cod test in bio-toilet effluent.1. silversulphate - 25gms, 2. mercuric chloride-50gms, 3. mercuric sulphate- 250gms, 4.potassium dichromate - 500gms, 5. ferroin indicator - 1no, 6. ferrous ammoniumsulphate - 250gms, 7. potassium hydrogen phthalate - 250mgs, 8. sulphuric acid-250ml,9. glass burette - 25ml and 50 ml (o.1ml graduation) - 5 nos each. all chemicals are tobe of lab analytical grade .
