MIL-PRF-81F
4. VERIFICATION
4.1 Classification of inspection. The inspection requirements specified herein are classified as follows:
a. Qualification inspection (see 4.3).
b. Conformance inspection (see 4.4).
c. Periodic group C inspection (see 4.5).
4.2 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in accordance
with the "GENERAL REQUIREMENTS" of MIL-STD-202. Accuracy of all test voltage measurements shall be within
±2.0 percent of the specified voltage.
4.3 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to the
Government (see 6.3), on sample units produced with equipment and procedures normally used in production.
4.3.1 Sample. The number of sample units comprising a sample of capacitors to be subjected to qualification
inspection shall be as specified in table II or the appendix to this specification.
TABLE II. Qualification inspection.
Inspection
Requirement
Method
Number of
Number of
paragraph
paragraph
sample units
failures
to be tested
permitted 1/
Group I
Visual and mechanical inspection:
Design, construction, and physical
dimensions
2
1
Marking and workmanship 2/
inclusive
Dielectric withstanding voltage
Barometric pressure (reduced)
18
1
Insulation resistance
26
1
Capacitance
Dissipation factor
Temperature coefficient and
6
1
capacitance drift
Group II
Terminal strength
12
1
Torque
Fatigue
Life
Group III
1
12
Shock, specified pulse
Vibration, high frequency
Moisture resistance
1/ A sample unit having one or more defects will be considered as one defective.
2/ Marking will be considered as a defect only if it becomes illegible as a result of any of the tests.
6
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business