Regulation 6 Imperial and metric units of measurement
(1)
Subject to regulation 2(2) above and paragraph (2) below, the marking of any container with information as to quantity by measurement shall be in metric units of measurement but may, in addition, be in imperial units.
(2)
In the case of any goods required by or under Part IV of the Act to be pre-packed or otherwise made up in or on a container for sale, or for delivery after sale, only if made up either in specified imperial or metric quantities or in specified imperial quantities only, the marking of quantity shall be in both metric and imperial units.