- Humboldt - HU3640M-00
ASTM C31, ASTM C143, ASTM C172, ASTM C192, ASTM C232...
Determine slump of concrete in laboratory or field use.
Choice of heavy-gauge seamless spun steel or lightweight plastic, in standard or metric sizes. Steel models have plated finish to resist rush, plastic models can be cleaned with acid bath and will not dent or rush. All models fitted with handles and foot llugs.