MIL-PRF-23269G
3.25.4 Full marking. Unless otherwise specified (see 3.1), capacitors shall be marked with the "JAN" or "J"
marking, PIN (see 1.2.1), date code and lot number, manufacturer's name (not trademark) or the Commercial and
Government Entity (CAGE) code, voltage, capacitance, and capacitance tolerance. There shall be no space
between the symbols which comprise the PIN. The date code and lot number shall consist of the year, week, and lot
code. For example: The third week of 1984 would be 8403.
3.26 Recycled recovered or environmentally preferable materials. Recycled, recovered, or environmentally
preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the
operational and maintenance requirements, and promotes economically advantageous life cycle costs.
3.27 Workmanship. Capacitors shall be processed in such a manner as to be uniform in quality and shall be free
from pits, corrosion, cracks, rough edges, and other defects which will affect life, serviceability, or appearance.
4. VERIFICATION
4.1 Classification of inspection. The inspection requirements specified herein are classified as follows:
a.
Qualification inspection (see 4.4).
Verification of qualification (see 4.5).
b.
c.
Conformance inspection (see 4.6).
4.2 QPL system. The manufacturer shall establish and maintain a QPL system as described in 3.3. Evidence of
such compliance is a prerequisite for qualification and retention of qualification.
4.3 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in accordance
with the test conditions specified in the "GENERAL REQUIREMENTS" of MIL-STD-202.
4.3.1 Accuracy of test voltage measurements. Accuracy of all test voltage measurements shall be ±2.0 percent of
the specified voltage.
4.3.2 Referenced measurements. When requirements are based on comparative measurements made before
and after conditioning, the reference measurements shall be considered the last measurement made at 25°C ±3°C
prior to conditioning. Unless reference measurements have been made within 30 days prior to the beginning of
conditioning, they shall be repeated.
4.3.3 Power supply. The power supply used for life testing shall have a regulation of ±2.0 percent or less of the
specified test voltage.
4.4 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. The
decision as to whether or not the product is to be included on the QPL shall be made at the conclusion of the 2,000-
hour life test.
4.4.1 Sample size. The number of capacitors to be subjected to qualification inspection shall be as specified in
Appendix A of this specification.
4.4.2 Inspection routine. The sample shall be subjected to the inspection specified in table III, in the order shown.
All sample units shall be subjected to the inspection of group I and group II. The sample units shall then be divided
as specified in table III for group III to group VI inclusive, and subjected to the inspections for their particular groups;
one group shall be subjected to the accelerated condition and the other group to the rated condition (see 4.4.4.1a).
4.4.3 Failures. Failures in excess of those allowed in table III shall be cause for refusal to grant qualification
approval.
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