MIL-PRF-52666F
of the drops, the F/S shall be tested as specified in 4.5.2.1. Breakage of the frame or damage to
the F/S or component or nonconformance to 3.4.5 or 4.5.2.1 shall constitute failure of this test.
4.5.2.6 Human factors. The F/S shall be evaluated throughout the entire first article
inspection for conformance to the human factors criteria specified in 3.10. Nonconformance
shall constitute failure of this test.
4.5.2.7 Reliability. Using the MTBF specified in 3.11.1, the F/S shall be tested as specified
in 4.5.2.1, 4.5.2.2, 4.5.2.3 and 4.5.2.4 with "accept" and "reject" criteria in accordance with
figure 5. At completion of above testing, continue testing in accordance with 4.5.2.1 until an
"accept" or "reject" decision is reached. A failure is defined as any malfunction that causes or
may cause:
a. Failure to commence operation, cessation of operation, or degradation of performance
below specified levels.
b. Damage to the F/S by continuing operation.
c. Safety hazard to personnel.
Nonconformance to 3.11 shall constitute failure of this test. Dependent failures or
malfunctions occurring as a result of improper maintenance or operator error are excluded from
consideration as chargeable failures. Replacement of the filter-coalescer element(s) shall not be
considered failures.
4.5.2.8 Maintenance ratio. The F/S shall be evaluated during the first article inspection for
conformance to the maintenance ratio requirement specified in 3.12. Nonconformance shall
constitute failure of this test.
5 PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in
the contract or purchase order (see 6.2). When actual packaging of materiel is to be performed
by DoD personnel, these personnel need to contact the responsible packaging activity to
ascertain requisite packaging requirements. Packaging requirements are maintained by the
Inventory Control Point's packaging activity within the Military Department or Defense Agency,
or within the Military Department's System Command. Packaging data retrieval is available
from the managing Military Department's or Defense Agency's automated packaging files, CD-
ROM products, or by contacting the responsible packaging activity.
6 NOTES
(This section contains information of a general or explanatory nature that may be helpful, but
is not mandatory.)
6.1 Intended use. The types and classes of F/S identified below are intended for the uses
indicated, and for other uses that may be specified, for the removal of undissolved water and
solid contaminants from aviation, diesel or motor fuels:
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