Council Directive 71/316/EEC of 26 July 1971 on the approximation of the laws of the Member States relating to common provisions for both measuring instruments and methods of metrological control
OJ L 202, 6.9.1971, p. 1–13 (DE, FR, IT, NL) English special edition: Series I Volume 1971(II) P. 707 - 720
