The
borosilicate round glass is produced according to the
international standard DIN7080.
Operating temperature is 280 degrees Celsius.
In a toughened form, temperatures up to 315 degrees Celsius are
possible whilst annealed glass may be used up 400 degrees
Celsius continuously with a short term maximum of 500 degrees
Celsius.
In addition to the
standard DIN size, other sizes can be customized.