for the metrication of roads signs. A treatise on electricity and magnetism. In 1980 government policy shifted again to prefer voluntary metrication, and the Metrication Board was abolished. The idea was first discussed by a Royal Commission that reported in 1818, 8 failed verification and again in Parliament by Sir John Wrottesley in 1824. Secondary indications may be shown, provided that they cannot be mistaken for primary indications. On measuring instruments "Directive 2009/23/EC". By 1980 most pre-packaged goods were sold using the prescribed units. 1.6,.10 The report did not address issues related to the media such as news reports and advertising. They recommended the CGS (centimetre-gram-second) system of units.