Supports the following standards: ASTM D6926, AASHTO T245, PTM705 This compactor automatically compacts three samples simultaneously at a preset number of hammer blows and shuts off at completion. The compactor features rotating bases with tapered-foot hammers. Unit includes mechanical compactor, automatic counter, ASTM-compliant oak compaction pedestal, (3) hammers and (3) H-1337 mold assemblies. Additional mold and hammer assemblies are recommended for efficient testing operations, allowing you to heat multiple molds and hammers to speed testing.