MIL-PRF-22594C(SH)
TABLE IV. Classification of defects.
Categories
Defects
Critical
1
None defined.
Major
101
Size not as specified.
102
Incomplete, component parts missing (heating elements, high limit cut-out switch).
103
Materials defective or not as specified.
104
Limited dimensions exceeded.
105
Flange holes and mounting dimensions not as specified.
106
Welding incomplete, not free of cracks, non-fusion, heavy porosity, heavy
undercut, slag inclusions.
107
Corner of flanges not smooth, square, or airtight.
108
Access cover plates, missing.
109
Cable entrance plate, missing.
110
Gaskets, missing or defective.
111
Fins not brazed to sheath at least 90 percent.
112
Fins bent back against the sheath or burrs not removed.
113
Splices in wire.
114
Electrical connections, not at terminal of components or terminal blocks.
115
Wiring not neat, tied, or clamped.
116
Cut-out switch cannot be reset without the removal of the cover plate.
117
Bolts, nuts, and screws not tight, missing.
118
Sharp edges and burrs not removed from parts subject to personnel contact.
119
Drawings not followed, or wiring diagram missing.
120
Painting (as applicable), nonconforming.
121
Marking, identification plate not complete, missing, not permanent, illegible, or
not as specified.
TABLE V. Sampling for examination.
Lot size number of
Sample size number of
heaters
heaters
1 to 6
All
7 to 15
7
16 to 25
10
26 to 40
13
41 to 65
17
66 to 110
22
111 to 180
28
181 to 300
35
301 to 500
45
11
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