Anvil with HRC66+/-2 is used for checking the calibration of rebound hammers Working on Schmidt mechanism. It is pressed vertically downward on the tip of anvil as shown in the figure. As per IS-516 Anvil should be of hardness HRC 66+/-2, Vedantrik Rebound Hammer Gives 80+/-2 rebound Number in good condition. Anvil is preferred with NABL testing report.
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