A: Vocal problems, like polyps, are not restricted to singers. While singers require peak performance of their voice, other voice professionals, such as teachers, lawyers, clergy, salespeople and receptionists, are also at higher risk for many vocal cord problems.
The permissible operating temperature range of nitrile rubber is â40 to +100 Â°C (â40 to +210 Â°F). For brief periods, temperatures of up to 120 Â°C (250 Â°F) can be tolerated. SKF also offers a special nitrile rubber compound with a temperature range between â55 and +110 Â°C (â65 and +230 Â°F).
The autoignition temperature of butane is 405 degrees C. (761 degrees F) That would be the lowest possible temperature of a butane flame. So that gives us a temperature range of 405 to 1977 degrees C. Or 761 to 3591 degrees F. More precise numbers than that aren't really available from any of the sources I saw.