Weights and Measures (Northern Ireland) Order 1981

2.  Subject to paragraph 3, goods to which this Part applies—N.I.

(a)unless pre-packed, shall be sold only by net weight or by capacity measurement;

(b)shall be pre-packed only if the container is marked with an indication of quantity either by net weight or by capacity measurement;

(c)in the case of lubricating oil in a quantity of[F1 one litre] or less, shall be made up in a container for sale otherwise than by way of pre-packing only if the container is marked with an indication of quantity by capacity measurement.

F1SR 1995/227