Council Directive 71/317/EEC of 26 July 1971 on the approximation of the laws of the Member States relating to 5 to 50 kilogramme medium accuracy rectangular bar weights and 1 to 10 kilogramme medium accuracy cylindrical weights
TREATY ESTABLISHING THE EUROPEAN ECONOMIC COMMUNITY, PART THREE - POLICY OF THE COMMUNITY, TITLE I - COMMON RULES, CHAPTER 3: APPROXIMATION OF LAWS, ARTICLE 100