BUEHLER 

HARDNESS TESTER

27.5 HRC

SERIAL NO. 112572CERTIFIED CALIBRATION RESULTS:

27.6      27.3      27.6

27.6       27.4      27.6

INDENTER VELOCITY:  1.0 MM/S

NIST TEST CYCLE TIMES:

PRELIMINARY      TOTAL       RECOVERY

      3S          ADD       5S                 4S

                      3S

TEMP: 23 DEGREE C

HUMIDITY: 48%

IN ACCORDENCE WITH ASTM E-18 

JM-1741-SDR B-H3-T 2-(1)-AS