# 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, Division 4.1

Extent: E+W+S+N.I.

Silica gel , 60-200 μm mesh. Place the silica gel in the muffle oven at 500 °C for at least 4 h. Allow to cool and then add 2 % water in relation to the quantity of silica gel used. Shake well to homogenise slurry and keep in the desiccator for at least 12 h prior to use.

---
Source: https://www.legislation.gov.uk/eur/1991/2568/annex/XX/division/4/division/4.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-1991-2568/annex-XX/division-4/division-4.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.