1 . Alumina Disc made from special grade of Alumina imported from ALCOA Germany.
2. Labwares are made by slip casting and pressure casting. Purity of sintered Alumina to be above 99.7%. Sintered Grain Size is between 2-4 microns.
3. Tolerance: /- 1mm for all dimensions up to 50 mm. /- 2mm for all dimensions above 50 mm.
4 . Sintered Density: above 3.9 gm/cc, above 98% TD (3.96gm/cc)
5 . Thermal Shock Behaviour: Temperature change rate should not exceed 150 °C/Hr
6. Maximum Temperature of use without load: 1750°C
7. Tested for Ultra High Vacuum Compatibility.