HT-225B Resiliometer Schmidt Hammer Resiliometer Concrete Rebound Test Hammer
The product complies with GB/T9138-1988 standard and JJG817-93 regulations and JGJ/T23-2011 technical regulations., the strength of the bridge. Average rebound value on steel anvil Rm: 80±2. Sphere radius of rebound pole SR: 25mm±1mm.