Division 3.1 F1 United Kingdom Original text. Later amendments are not shown. Volatile acidity is calculated by deducting the fixed acidity from the total acidity. Annotations Textual amendments F1 Inserted by Commission Implementing Regulation (EU) 2016/635 of 22 April 2016 amending the Annex to Regulation (EC) No 2870/2000 as regards certain reference methods for the analysis of spirit drinks. ← Division 3 Division 3.1 Division 3.2 →