The 9in (228.6mm) Perforated Plate is for use with the ASTM 9in Sand & Gravel Permeameter and the 9in Constant / Falling Head Sand & Gravel Permeameter. Perforated Plates placed at each end of soil permeability specimens prevent deformation and allow flow of permeants. Made of durable PVC plastic with 0.20in (5.08mm) thickness and 3/16in (4.8mm) perforations. Two Perforated Plates are included.
- Constructed of durable PVC plastic
- Allows permeants to flow freely while preventing loss of soil
- 3/16in (4.8mm) perforations in 0.20in (5.08mm) thick plates
- 9in Perforated Plate (set of two)