Britain had not been represented at the Paris International Electrical Conference whose decision of May 1884 had ruled that the legal ohm was to be a column of mercury of length 106 cm and section 1 mm² at a temperature of melting ice. This recommendation had, however, been communicated to the relevant governments in order to obtain international recognition of this unit.

Inspec keywords: electricity; units (measurement); lighting; measurement standards

Other keywords: lighting purposes; electrical century; standards; electricity; units; Paris international electrical conference

Subjects: Measurement units