MIL-PRF-32504
Table II. Fabric Requirements continued
Item
Standard
Flame Resistance
Char: Max 50%
ASTM 6413, ASTM E84 flame spread
After Flame: Max 2 seconds
index < 25,
After Glow: Max 2 seconds
smoke development rating < 450
Opacity
Shall not transmit more than 0.020
MIL-PRF-44103
foot-lamberts of visible light
Color
Exterior: # 33446, Tan
Federal Standard 595C
Interior # 17925 White, Untinted
Berry Amendment
Fabric must comply with Berry
Amendment
Top Coat Composition,
PVDF or Acylic High Performance
Film, 0.00001" min
Dry Film Thickness
"0" Rating
Face Coat Mildew Resistance
ASTM G21
Weathering Resistance
10,000 hour rating, no delamination,
ASTM G155
crazing or cracking of fabric
Polymeric Film, 0.004" minimum
Back Coat Composition
ASTM D751
"0" Rating
Back Coat Mildew Resistance
ASTM G21
3.1.5.2 Flammability: The shelter weather barrier fabric cover (interior and exterior) shall be flame
resistant, self-extinguishing and shall not have flaming melt pieces when exposed to flame or high heat.
The weather barrier fabric cover shall not generate toxic gases when exposed to fire and high heat.
3.1.6 Interior Shelter Environment
3.1.6.1 Ventilation: The shelter shall incorporate a ventilation system. The ventilation system shall be
easily connected to the shelter electrical system. The system shall provide a minimum of 9 cfm (0.25 m3 )
to ensure adequate personnel air and circulation to minimize humidity built up inside the closed shelter.
Ventilators shall be provided with a cleanable air filter which will prevent the entry of fine, blowing sand.
The use of ventilators shall not affect the shelter s ability to maintain blackout capability during
operation.
3.1.6.2 Passive Ventilation: Passive Ventilation at the roof peak is acceptable for heat dissipation
however it is not a substitute for powered Active Ventilation used for air exchange purposes. Passive
ventilation must comply with Black-out condition requirements.
8
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business