2
‐
2.
Measuring
the
test
block
1.
Measure
each
part
using
a
caliper.
NOTE
:
Measure
the
shadow
area
(upper
part)
for
X1,
X2,
Y1
Do
not
measure
at
curved
part
for
Z1.
and
Y2.
Measure
the
upper
part
above
the
center
for
Y3.
Measure
the
lower
part
below
the
center
for
Y4.
Y3
Y4
X1
X2
Y1
Y2
Y3
Y4
Z3
Z4
Z2
Z1