Article 2U.K.
(a)
[F1The obligations arising under Article 1 relate to measuring instruments used, measurements made and indications of quantity expressed in units of measurement.]
(b)
This Directive shall not affect the use in the field of air and sea transport and rail traffic of units, other than those made compulsory by the Directive, which have been laid down in international conventions or agreements binding the Community or the Member States.