Standards: ASTM D5873, ISRM
This impact hammer is used for rock classification test. The core rock specimen normally NX 54.7 mm diameter is held on a special cradle (accessory) in horizontal position, and the hammer tests the same in all its length, to obtain an average of the readings.
Impact energy: 0.74 Nm
Measuring range: 10...60 N/mm2
Weight: 2 kg