W-1190-B | Plane Compression Platen
Plane Compression Platen 6.5 in diameter by 2 in thick in accordance with ASTM C-39 and AASHTO T-22.
- Scribed concentric circles of 3 in, 4.25 in, and 6.25 in
diameters. Platen has an RC-60 hardness and is flat
within 0.0005 in in any 6 in direction.