X1ANNEX
Annotations:
Editorial Information
CHAPTER ILEGAL UNITS OF MEASUREMENT REFERRED TO IN ARTICLE 1 (a)
1.SI UNITS AND THEIR DECIMAL MULTIPLES AND SUBMULTIPLES
F11.1.SI base units
1.1.1.Special name and symbol of the SI derived unit of temperature for expressing Celsius temperature
Quantity | Unit | |
|---|---|---|
Name | Symbol | |
Celsius temperature | degree Celsius | °C |
Celsius temperature t is defined as the difference t = T – T0 between the two thermodynamic temperatures T and T0 where T0 = 273,15 K. An interval or difference of temperature may be expressed either in kelvins or in degrees Celsius. The unit ‘degree Celsius’ is equal to the unit ‘kelvin’.
Substituted by Corrigendum to Council Directive 80/181/EEC of 20 December 1979 on the aproximation of the laws of the Member States relating to units of measurement and on the repeal of Directive 71/354/EEC (Official Journal of the European Communities No L 39 of 15 February 1980).