44. Where any person procures a sample consisting of a food or substance contained in unopened containers, and the division into parts of the food or substance contained in those containers—
(a)is not reasonably practicable; or
(b)might affect the composition or impede the proper analysis of the contents;
the provisions of Article 40 with respect to the division of samples into parts shall be deemed to be complied with if the person procuring the sample divides the containers into three lots and deals with each lot as if it were a part in the manner provided by that Article; and references in this Order to a part of a sample shall be construed accordingly.