Division 1 Principle United Kingdom Original text. Later amendments are not shown. The pH of tomato derivatives is determined electrometrically using a pH meter. Notes on the whole EU Regulation Textual amendments F1 Substituted by Commission Regulation (EC) No 1593/98 of 23 July 1998 amending Regulation (EEC) No 1764/86 as regards the minimum quality requirements for products processed from tomatoes under the production aid scheme. ← Division Division 1 Division 2 →