MIL-DTL-52849E
3.3.3 Undissolved water content. The test kit shall provide the components necessary to
determine the free-water content of fuel, using the Aqua-Glo method, in accordance with
ASTM D 3240 (see 4.5.1.3). Support equipment required for testing include tweezers, free water
pads, jewelers screwdriver, and a stainless steel monitor.
3.3.3.1 Spare parts. The kit shall also include one spare internal battery for the detector
(GTP-2324), a 9 volt battery for the meter, and one spare calibration standards set.
3.4 Carrying case. A carrying case, capable of containing all items needed to perform
the required tests, shall be supplied. The carrying case shall be sufficiently waterproof and water
vapor-proof to protect all kit items when sprayed continuously with water (see 4.5.3.1). A valve
or other suitable means of pressure relief shall be installed for aircraft transportability. The
valve or other pressure relief mechanism shall be placed such that carrying of the case or use of
the kit shall not be hindered. The carrying case shall be fabricated so that all items are securely
restrained and adequately cushioned to prevent damage during transit. The carrying case shall
not be greater than 16.63 in. (42.2 cm) (H) x 20.00 in. (50.8 cm) (W) x 15.00 in. (38.1 cm) (D).
The carrying case shall be provided with handles or grasp areas, and catches or latches designed
to allow transport and operation by personnel wearing arctic mittens.
3.4.1 Weight. The weight of the kit, the carrying case fully supplied with its items, shall
not exceed 42 lbs. (19.1 kg).
3.5 Kit loading diagram. A diagram or equivalent means of identifying equipment
placement in the kit shall be supplied. The loading diagrams shall be shown on a durable plate,
affixed to the inside of the unit's cover, or by other suitable means to easily identify storage
locations and be legible for the life of the unit.
3.6 Environmental requirements.
3.6.1 Climatic. The test kit shall be capable of performing in any ambient temperature
from 35 ± 2 °F to 120 ± 2 °F (2 ± 1 °C to 49 ± 1 °C) (see 4.5.3.3 and 4.5.3.5). When placed in
storage, the test kit shall not be damaged in any ambient temperature from -25 ± 2 °F to 145 ± 2
°F (-32 ± 1 °C to 63 ± 1 °C) (see 4.5.3.2 and 4.5.3.4).
3.6.2 Fungus resistance. Where possible, moisture and fungus-resistant materials shall
be used. Where this is not possible, materials shall be coated for protection.
3.6.3 Transportability. With exception of the free-water detector, the kit shall be capable
of withstanding the vibration, stress and shock encountered when transported by all standard
modes of transportation (see 4.5.4).
3.7 Human factors. The construction shall foster effective performance of operating
procedures, an effective personnel safety and health environment, and minimize factors that
contribute to increased operator error. The unit shall incorporate protection from electrical,
thermal, mechanical, and other potential hazards. The construction shall also reflect efficient
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