MIL-DTL-81248C
detectors helps facilitate the comparison, since, an unaffected detector pad appears identical to
the 0 ppm water standard contained in the detectors.)
4.5.5 Filterability/flow test.
4.5.5.1 Procedure. Random samples shall be selected as specified in 4.3.2 and tested for fuel
filterability according to the following procedure. This test specifies the procedure to verify that
the detector pad allows a sufficient quantity of fuel to pass through within a specified time range
under vacuum filtration. Five hundred mL of aviation fuel shall be filtered through the detector
pad and the time required to filter this volume shall be determined. The test apparatus specified
in ASTM-D5452 (or equivalent) shall be used to conduct this test. The apparatus consists of a
funnel and funnel base with a filter support such that the detector pad can be securely locked or
clamped between the sealing surfaces of the funnel and its base. The funnel and funnel base
shall be of stainless steel or glass construction.
a. Immediately after opening the sealed watervaporproof bag, the detector pad shall be
placed, coated side up in a filtration apparatus of the type shown in ASTM-D5452.
b. Turn on the vacuum and immediately pour 500 mL of (clean and dry) fuel into the funnel.
Start recording the time. A vacuum system that develops in excess of 67.5 kPa (20 in. of
mercury) vacuum shall be used. Throughout filtration, maintain a sufficient quantity of fuel in
the funnel so the membrane filter is always covered.
c. After the fuel has completely filtered, turn off the vacuum, and record the time (in
seconds). If the fuel has not completely filtered through the detector pad in 50 seconds, the pad
has failed the fuel flow requirement of 3.5. The test should be stopped and the result recorded as
">50 seconds."
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified
in the contract or order (see 6.2). When packaging of materiel is to be performed by DoD or in-
house contractor personnel, these personnel need to contact the responsible packaging activity to
ascertain packaging requirements. Packaging requirements are maintained by the Inventory
Control Point's packaging activities within the Military Service or Defense Agency, or within the
military service's system commands. 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.
8
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business