H-1675 Steel Piston Mortar & Pestle

H-1675 Steel Piston Mortar / Pestle Can be used as a compaction mold used to prepare powdered samples to test softening point of resins and other bituminous materials using ring-and-ball method. Mortar, pestle, sleeve, knock-out button and ring support are C.R. steel. Meets dimensions in Fig. 3 of ASTM E28. Pestle diameter: 25 / 32"