Celsius temperature (temp.) - Dynamic NPU Manual

Celsius temperature (temp.)



Definition in words

Thermodynamic temperature minus 273.15 K
Note: Thermodynamic temperature (Kelvin temperature, absolute temperature) is a base SI quantity

Definition by equation

Systematic terms

Celsius temperature of system 1

Result type

Differential scale
  • Value sets are numerical values on a linear differential scale
  • Numerical values -273.15 °C to ∞
  • Values cannot be divided (│a-b│=│c-d│;│a-b│≠│c-d│)


Degree Celsius (°C)


  • Ferard G, Dybkaer R, Fuentes-Arderiu X. Compendium of Terminology and Nomenclature of Properties in Clinical Laboratory Sciences : Recommendations 2016. 1 ed: Royal Society of Chemistry; 2016. 182 p. Doi:10.1039/9781782622451.
  • IUPAC Goldbook homepage. http://goldbook.iupac.org
  • Lehmann HP, Fuentes-Arderiu X, Bertello L. Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996). Pure and Applied Chemistry. 2009;68(4):957-1000. doi:10.1351/pac199668040957.

Laboratory field


Clinical Chemistry

Example 1
Generic abbreviated NPU04082 Room—Air; temp. = ? °C
Full result NPU04082 Room—Air; Celsius temperature = 15 Degree Celsius
Abbreviated result NPU04082 Room—Air; temp. = 15 °C
Written expression The Cesius temperature of air in Mrs. Smith’s room is [15] °C.
Example 2
Generic abbreviated
NPU08676 Pt—Body; temp. = ? °C
Full result NPU08676 Patientt—Body; Celsius temperature =41 Degree Celsius
Abbreviated result NPU08676 Pt—Body; temp. = 41 °C
Written expression The Cesius temperature of Mrs. Smith’s body is [41] °C.


NPU database, https://www.ifcc.org/ifcc-scientific-division/sd-committees/c-npu/npusearch/ and http://www.labterm.dk/default.aspx
  • Kind-of-property

    • Nominal kind-of-property

    • Kind-of-quantity

      • Unitary kind-of-quantity

        • Rational unitary kind-of-quantity

          • Celsius temperature


  • Dybkaer R. Concept system on ‘quantity’: formation and terminology. Accredit Qual Assur. 2013;18(3):253-60.
  • Dybkaer R. ISO terminological analysis of the VIM3 concepts ‘quantity’ and ‘kind-of-quantity’. Metrologia. 2010;47(3):127-34.
Date Term Note
1996-01-01 Cesius temperature Term established