1327K INSTRUCTION MANUAL. ... Emissivity: Emissivity is a value between 0.17 and 1 which indicates an object’s ability to emit infrared energy. Emissivity ... Zirconium silicate up to 500°C 0.85 Zirconium silicate at 850°C 0.6 Quartz (rough) 0.9 Carbon (graphite) 0.75 Carbon (soot) 0.95
