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TX-1441AE
8. FAULT AND DEFECT CRITERIA
defects
Zone dimensions (mm)
Permissible major
A
127
x 178
More than 0.76
Air bubble (average diameter, mm)
Black spot, stain, hole and open
More than 0.66
air bubble (average diameter, mm)
Each zone
Maximum permissible number
Minimum allowable distance among
defects (mm)
defects
Permissible
minor
Air bubble (average diameter, mm)
0.50~0.75
0.50~0.75
0.50~0.65
0.50~ 0.65
Black spot, stain, hole and open
air bubble (average diameter, mm)
Maximum permissible number
Each zone
1
diameter
Elongated air
bubbie
(permissible
size)
Note:
1)
2)
Permissible defects
any circle of 50 mm
air bubble (average diameter, mm)
Maximum permissible number
Minimum allowable distance
among defects (mm)
This is also applied to the distance to major defects.
This should be evaluated
by its average diameter, and then relevant standards of air bubble are applied
except
maximum
permissible
number
of each zone
and minimum
allowable distance among
defects.
(Even
if the average diameter of elongated bubble exceeds that of major defects, this is treated as a
|
permissible major defects.)
2425
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