Measuring Instruments Directive

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European Union European Union directive:
Directive 2004/22/EC
Measuring Instruments Directive
Made by European Parliament & Council
Made under Article 95 (now Article 114)
Journal reference L135, 30 April 2004, pp. 1-80
History
Made 31 March 2004
Came into force 30 April 2004
Implementation date 30 October 2006
Preparative texts
Other legislation
Status: Current legislation

The Measuring Instruments Directive (2004/22/EC) is a directive by the European Union, which seeks to harmonise many aspects of legal metrology across all member states of the EU.[1] Its most prominent tenet is that all kinds of meters which receive a MID approval may be used in all countries across the EU.

The MID covers these measuring instruments:

  • Water meters
  • Gas meters and volume conversion devices
  • Active electrical energy meters
  • Heat meters
  • Measuring systems for the continuous and dynamic measurement of quantities of liquids other than water
  • Automatic weighing instruments
  • Taximeters
  • Material measures
  • Dimensioning systems
  • Exhaust gas analysers

Measuring instruments that comply with the MID bear:

  • the CE mark
  • a capital letter ‘M’ and the last two digits of the year of its affixing, surrounded by a rectangle
  • the identification number of the notified body involved in conformity assessment

The Measuring Instruments Directive was published on 30 April 2004 in the Official Journal of the EU, but not applied until after 30 October 2006 and there will be a 10-year transition period. National implementations of the new legislation are currently in the works.

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