SCHEDULE 1 GENERAL PURITY CRITERIA APPLICABLE TO PERMITTED FLAVOURINGS
3 No relevant flavouring shall contain—
(a) more than 3 milligrams per kilogram of arsenic;
(b) more than 10 milligrams per kilogram of lead;
(c) more than 1 milligram per kilogram of cadmium;
(d) more than 1 milligram per kilogram of mercury.