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|  MIL-V-85830(AS)
3.9.10 Environmental tests. Prior to and at the completion of each
environmental test, the ventilator shall be tested and shall meet the
requirements of 3.9.1, 3.9.2, 3.9.3, 3.9.4, and 3.9.5.
3.9.10.1 High temperature. When tested as specified in 4.8.4.1, the
ventilator shall operate without failure.
3.9.10.2 Low temperature. When tested as specified in 4.8.4.2, the
ventilator shall operate without failure.
3.9.10.3 Salt fog. When tested as specified in 4.8.4.3, the ventilator
shall operate without failure and show no structural degradation.
3.9.10.4 Rain. When tested as specified in 4.8.4.4, the ventilator shall
operate without failure.
3.9.10.5 Fungus. When tested as specified in 4.8.4.5, the ventilator
shall not support fungal growth and shall operate without failure.
3.9.10.6 Low pressure, high humidity. When tested as specified in
4.8.4.6, the ventilator shall operate without failure.
3.9.10.7 Dust. When tested as specified in 4.8.4.7, the ventilator shall
operate without failure.
3.9. 10.8 Normal acceleration. When tested as specified in 4.8.4.8, the
ventilator shall operate without failure.
3.9.10.9 High temperature, diurnal cycle and high humidity. When tested
as specified in 4.8.4.9, the ventilator shall operate without failure.
3.9.10.10 Shock. When tested as specified in 4.8.4.10, the ventilator
shall operate without failure and show no structural degradation.
3.9.10.11 Vibration. When tested as specified in 4.8.4.11, the ventilator
shall operate without failure and show no structural degradation.
3.10 Components. The ventilator shall consist of the components specified
in 3.10.1 through 3.10.8 and other parts as necessary which are essential to
form a complete, assembled, and operating unit.
3.10.1 Housing. The housing shall contain a separate compartment for the
battery which allows separate insertion of the battery and insures battery
contacts are made and sealed from the environment when the compartment lid is
secured. This shall also facilitate changing the battery In contaminated
environments while avoiding contamination intrusion.
3.10.2 Filter canister. A maximum of two filter canisters shall be
externally mounted to the ventilator body. The filter canisters shall be, or
be equal to, NATO Stock Number 4240991353662.
3.10.3 Delivery hose. The ventilator delivery hose shall be fabricated
from bromo-butyl rubber. The hose shall be reinforced to prevent kinking
and/or overstretching. The end of the delivery hose shall be fitted with a
The hose shall be 48 inches long
connector which shall mate with MIL-C-85829.
or 18 inches long.
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