The Standard Time-Temperature Curve
The standard time-temperature curve means the time-temperature curve defined by the formula:
T = 345 log10(8t + 1) + 20
T is the average furnace temperature (°C)
t is the time (min).
Source: IMO Resolution MSC.307(88), International Code for Application of Fire Test Procedures, 2010 (2010 FTP Code), 3 December 2010, International Maritime Organization. Regulatory Guidance