(a) goods consist of a container and the contents of the container; and
(b) those contents would, if they were manufactured or produced in Australia, be subject to duty of Excise under the Excise Tariff Act 1921 ; and
(c) under the Interpretation Rules, the tariff classification under which the goods are classified is the tariff classification under which the container would be classified if it were imported separately;
the duty in respect of the goods is equal to the sum of the amount of the duty that would be payable in respect of the container if it were imported separately and the amount of the duty that would be payable in respect of the contents if they were imported separately.