MIL-PRF-85899A(AS)
Obtain a sample of not less than 15 cc from the container used in 4.2.4.2. Drop the sample
from a height of not more than 12 inches to a clean, smooth, horizontal metal plate. After
the gelled fuel has been allowed to rest on the horizontal plate for not more than 60 seconds,
the plate shall be elevated to a vertical position for observation of gel mobility. No part of
the gel sample shall slide down the plate more than two inches within 60 seconds of the time
of elevation of the plate.
4.2.4.4 Samples for gelling and mobility tests. Samples failing to gel or stick in
conformance to the criteria of 4.2.4.2 and 4.2.4.3, respectively, shall indicate that all mixture in
that tested sublot is defective. Defective sublots may be returned to the blending machine for
more blending and retesting. The proportion of imbiber beads to wicking material shall not be
adjusted beyond the limits specified in 3.2.4.
4.2.4.5 Bead dryness test. Bead dryness (see 3.2.2) shall be verified by dropping a sample
of not less than 0.25 pound of the imbiber beads to a clean, smooth, horizontal, metal plate. The
beads shall readily separate into individual beads without cohering or sticking to the metal plate.
Visual observations made during this test shall be recorded for each lot.
4.2.4.6 Bead size determination test. Each lot of imbiber beads shall be tested for
conformance to 3.2.1 after bead dryness has been established per 4.2.4.5. Collect a sample of
imbiber beads weighing not less than 0.5 pound. The sample shall be agitated for five minutes in
a Ro-Tap machine at 750 revolutions per minute using Tyler standard screens with openings of
1.0 mm and 0.21 mm. The weight of imbiber beads retained on each screen shall be determined
and recorded to determine conformance to 3.2.1.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified
in the contract or 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 for 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 which may be helpful,
but is not mandatory.)
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