Ceramic Reflector (Ceramic Diffuse Reflector)
Bulk density (fired), Mg/m3 :3.2
Porosity (apparent), % nominal:20
Flexural strength (ASTM C1161, 3-point), MPa:150
Thermal expansion coefficient
200-500C, 10-6/C 7.9
200-1000C, 10-6/C9.0
(Efficiency:Wavelength, from independent tests carried out at the UK's National Physical Laboratory)
