SODIUM THIOSULPHATE ANHYDROUS, 1 kg, ≥98%, GPR RECTAPUR® Potassium dichromate 0.0167 mol/l (0.1N) 2,5 L Potassium dichromate solution 0,02 mol/l - 0,12 N, 1 L Potassium dichromate 0,04 mol/l 0,24 N solution in 80 g/l Mercury (II) sulphate for COD determination AVS TITRINORM volumetric solut ion Glass bottle 1L Ammonium iron(II) sulphate 0.12 mol/l (0.12 N) in aqueous solution, AVS TITRINORM volumetric solution, for COD determination according to NF T 90-101 standard 1 L Diphenylamine, 25 g FENANTROLINA MONOHIDRAT IND 5 G Orthophosphoric acid 85 % GPR RECTAPUR HDPE bottle 1L Sodium dichromate dihydrate ≥99% - 500 g CHARCOAL ACTIVATED GAS ADSORPTION – 1 kg Bromothymol blue ACS – 5 g Ammonium acetate GPR RECTAPUR – 1 kg Ammonium heptamolybdate tetrahydrate AnalaR NORMAPUR RPE/ACS – 100 g x 2 Potassium sodium L(+)-tartrate tetrahydrate TECHNICAL – 1 kg Potassium disulphite ≥96.0%, 1 kg Potassium chloride 99.0-100.5% Ph. Eur. – 1 kg Potassium chloride 3 mol/l electrolytic solution AVS TITRINORM volumetric solution Plastic bottle 1L Calcium chloride dihydrate AnalaR NORMAPUR ACS/R.PE – 500 g CALCIUM CHLORIDE ANHYDROUS ACS GRADE – 500 g Potassium hydrogen phthalate – 500 g Potassium dihydrogen phosphate crystallized Ph.Eur. 1 kg di-Sodium tetraborate decahydrate 1 kg Potassium sulphate GPR RECTAPUR 1 kg Copper (II) sulphate pentahydrate purified TITANIUM (IV) OXIDE ANALAR NORMAPUR 1 kg Salicylic acid GPR RECTAPUR 1 kg Sodium thiosulphate pentahydrate purified 1 kg