QSX-22-type heat-resistance test instrument, Usage, the QSX-22-type heat-resistance test instrument mainly applicable to the determination of bitumen waterproofing membrane on the upper and lower surfaces at a predetermined temperature or continuously measured at different temperatures, the heat-resistance limit. The product is based on GB/T328.11-2007 "the building waterproofing membrane test methods - Part 11: bitumen membrane heat resistance" national standard design manufactured. The product has a simple structure and easy to operate. Second, the main technical parameters 1. Specimen suspension clip: width 100mm 2 reading microscope: magnification of 20 times the minimum scale value 0.01mm