Directive 2008/50/EC of the European Parliament and of the CouncilShow full title

Directive 2008/50/EC of the European Parliament and of the Council of 21 May 2008 on ambient air quality and cleaner air for Europe

[F12. Reference method for the measurement of nitrogen dioxide and oxides of nitrogen U.K.

The reference method for the measurement of nitrogen dioxide and oxides of nitrogen is that described in EN 14211:2012 Ambient air — Standard method for the measurement of the concentration of nitrogen dioxide and nitrogen monoxide by chemiluminescence .]