Commission Regulation (EEC) No 2568/91Show full title

Commission Regulation (EEC) No 2568/91 of 11 July 1991 on the characteristics of olive oil and olive-residue oil and on the relevant methods of analysis

4.REAGENTSU.K.

All reagents shall be of recognized analytical grade:

4.1. water, complying with the requirements of ISO 3696, Grade 3.U.K.

4.2. potassium iodide, 100 g/l solution, not containing iodate or free iodine.U.K.

4.3. starch, solution.U.K.

Mix 5 g of soluble starch in 30 ml of water, add this mixture to 1 000 ml of boiling water, boil for three minutes and allow to cool.

4.4. sodium thiosulfate, standard volumetric solution c (Na2S2O3.5H2O) = 0,1 mol/l, standardized not more than seven days before use.U.K.

4.5. solvent, prepared by mixing equal volumes of cyclohexane and acetic acid.U.K.

4.6. Wijs reagent, containing iodine monochloride in acetic acid. Commercially available Wijs reagent shall be used.U.K.