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Page Title:
Table II. Classification of defects |
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|  MIL-R-24159A(SH)
4.5 Examination. Each sample, selected in accordance with table I, shall
be visually examined to determine conformance with this specification. The
classification of possible defects in table II is the minimum that is to be
considered in the examination. Any receptacle in the sample containing one or
more defects shall not be offered for delivery and if the number of defective
units in any sample exceeds the acceptance number for the sample, this shall be
cause for rejection of the lot represented by the sample.
TABLE 11.
Classification of defects.
Defects
Categories
None defined.
Critical:
Major:
101
Incomplete, component parts missing or improperly assembled.
Materials defective or not as specified.
102
Limiting dimension exceeded.
103
Welding incomplete, not. free of cracks, nonfusion, heavy
104
porosity a Welding not in accordance with MIL-STD-278.
105
Drawing not followed.
Bolts, nuts and screws not tight, missing (parts shall be
106
properly fastened and secured).
107
Painting (as applicable) nonconforming.
108
Surfaces not smooth, evidence of sharp edges or burrs.
Marking, identification and information plate not complete,
109
missing, not permanent, illegible or not as specified
4.6 Tests.
4.6.1 Operational test. Each receptacle shall be energized to conform
to the requirements specified herein. Electrical metering equipment shall be
connected in the circuitry to demonstrate that current and voltage is within
rated values and that no shock hazard exists. Evidence of improper electrical
operation or personnel hazard and inability of the unit to deliver the proper
air quantity shall be cause for rejection.
4.6.2 Shock. The receptacle shall be subjected to the grade A, class 1,
type A, lightweight H.I. shock test in accordance with MIL-S-901 as specified in
3.4. For the purposes of the shock test, the three rubber bumpers on the bottom
of the casing shall be removed and replaced with l-inch diameter by 3/4-inch
thick steel stand-offs. The receptacle shall then be bolted solidly to the
mounting shelf of the lightweight high impact shock machine with three 1/4-20 NC
hex-socket-head cap screws. The test shall be conducted subsequent to tests
specified in 4.6.3. Evidence of fragmentation or missile effect of parts,
deformation that will cause active interference between parts, or leakage shall
.
be cause for rejection.
4.6.3 Air flow. An anemometer, pressure gage, or other measuring device
shall be used for the purpose of determining the air flows The measurements
shall be made with the canisters and filter in place.
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