IPC-TM-650 EN 2022 试验方法1.pdf - 第274页
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Figure 2 Wetting Balance Curve
TIME
FORCE ( N)
0
Instrument Zero
Corrected Zero
Fmax
T
w
IPC-TM-650
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101.60mm
26.95mm (x2)
25.40mm radius (x2)
Dimensional tolerances ±0.051mm [0.002 in]
Table of Metric-to-Imperial Equivalents
in.
4.0
0.750
1.061
1.000
1.118
2.0
0.500
101.60
19.05
26.95
25.40
28.40
50.80
12.70
mm
28.40mm (x2)
50.80mm (x2)
19.05mm (x2)
19.05mm
radius (x2)
12.70mm radius (x2)
90º±0.5º
P g