xmlns:atom="http://www.w3.org/2005/Atom"
1. The units of mass used shall be legal units within the meaning of Directive 80/181/EEC(1) as last amended by Directive 85/1/EEC(2).
Subject to compliance with this condition, the following units are permitted:
SI units: kilogram, microgram, milligram, gram, tonne,
Imperial units: pound, ounce (avoirdupois), troy ounce,
other non-SI units: metric carat, if weighing precious stones.
For instruments that make use of the Imperial units of mass referred to above, the relevant essential requirements specified below shall be converted to the said Imperial units, using simple interpolation.
OJ No. L39, 15.2.1980, p.40.
OJ No. L2, 3.1.1985, p.11. Since its amendment by Directive 85/1/EEC, Directive 80/181/EEC has been further amended by Directive 89/617/EEC.