9th Oct 2018
The proportionality constant relating the total emissive power from a black surface, and its absolute temperature (K) raised to the power 4. Normally denoted by the greek lowercase letter sigma, it has a value of 5.6687X10(exp)-8 Wm(exp-2)K(exp-4).
9th October 2018
Members of the IFRF can have access to a range of exclusive benefits. To learn more about our membership options and what they currently offer click here.
Alternatively, to become a member fill out a form using the link below