The 6in (152.6mm) Perforated Plate is for use with 6in Constant / Falling Head Permeability Test Set and 6in ASTM / AASHTO Constant Head Permeameter. Perforated Plates are placed at each end of the permeability specimen to support the sample and allow flow of permeant liquid. Plates are constructed of durable PVC plastic with 0.20in (5.08mm) thickness and 3/16in (4.8mm) perforations. Two Perforated Plates are included.
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