Flatness: TTV _ 7 microns LTV (5x5mm2; 95%; 2mm edge exclusion) _ 1.5 microns Warp: _ 40 microns Curie Temperature: 1133 - 1145°C (+/- 3 °C) Frontside: Mechano-chemical mirror polished No pits or scratches Backside: Ra = 0,2 - 0,7 microns Flat length: 32.0 mm (+/- 3 mm) Flat orientation: perpendicular to Z axis (+/-0.30 degrees) Edges: All edges rounded AS/OS