GonzaloMartinez
Mechanical
- Apr 9, 2015
- 24
Hello everyone,
we are trying to do the verification of a portable hardness tester acording to ASTM A956 Part B. "Verification of leeb hardness instruments by a standarized block method". The criterion given in 15.1 and 15.2 states that the instrument shall be considered verified if two individual impacts fall within +/- 6 HL units of the reference value. The thing is that the manufacturer of the instrument has provided a test block whose hardness is certified in HRC units. What we want to know is if it is possible to comply with this verification procedure by converting HRC units to HL units.
Best regards.
we are trying to do the verification of a portable hardness tester acording to ASTM A956 Part B. "Verification of leeb hardness instruments by a standarized block method". The criterion given in 15.1 and 15.2 states that the instrument shall be considered verified if two individual impacts fall within +/- 6 HL units of the reference value. The thing is that the manufacturer of the instrument has provided a test block whose hardness is certified in HRC units. What we want to know is if it is possible to comply with this verification procedure by converting HRC units to HL units.
Best regards.