1. http://www.bipm.org/en/about-us/ [Retrieved 2017-01-31.]
2. http://jcgm.bipm.org/vim/en/2.39.html [Retrieved 2017-01-31.]
3. http://jcgm.bipm.org/vim/en/4.30.html [Retrieved 2017-01-31.]
4. http://jcgm.bipm.org/vim/en/4.31.html [Retrieved 2017-01-31.]
5. Kirchhoff’s law of thermal radiation.
6. Based on ISO 18434-1:2008 (en).
7. Based on ISO 13372:2004 (en).
8. 2nd law of thermodynamics.
9. This is a consequence of the 2nd law of thermodynamics, the law itself is more complicated.
10. Based on ISO 16714-3:2016 (en).
11. 1st law of thermodynamics.
12. Fourier’s law.
13. This is the one-dimensional form of Fourier’s law, valid for steady-state conditions.
14. Based on ISO 18434-1:2008 (en)
15. Based on ISO 10878-2013 (en).
16. Based on ISO 10878-2013 (en).
17. Based on ISO 16714-3:2016 (en).
18. Thermal energy is part of the internal energy of an object.
19. Based on ISO 16714-3:2016 (en).