9
Table 4
Hardness
(
HV
)
Parameter
Value
(
mm
)
300
Indentation diameter
0.54
Indentation depth
0.024
600
Indentation diameter
0.54
Indentation depth
0.017
800
Indentation diameter
0.35
Indentation depth
0.010
3.1.3
Accuracy and repeatability of displayed value see table 5.
Table 5
Hardness value of Leeb
standard test block
Error of
displayed value
Repeatability of
displayed value
760
±
30HLD
±
6 HLD
6 HLD
530
±
40HLD
±
10 HLD
10 HLD
3.1.4
Measuring range
:
170
~
960HLD
;
3.1.5
Measuring direction
:
360
°;
3.1.6
Scales
:
HL
、
HB
、
HRB
、
HRC
、
HRA
、
HV
、
HS
;