MIL-F- 81526 B(AS)
3.4 Detail Requirements - The Film-Tapes shall meet the following detail
3.4. 1 Film-Tape Dimensions - The Film, 105mm, dimensions before
processing and treatment shall be as shown in Figure 1.
The base thickness shall be O. 0025 + O. 0002 and maximum
thickness O. 0030.
The length of any 100 consecutive perforations shall be
18.700 + 0.015 CL to CL.
c. The dimensions and tolerances shown in Figure 1 apply to the
material immediately After cutting and perforating, and when
the film is in equalibrum with a relative humidity of 50 percent
at an ambient temperature of 22.2 + 1. 6°C (72 + 30F)
3.4. 1.1 Film-Tape Thickness - The thickness of the Film-Tape with
emulsion shall not exceed O. 0032 inch.
3.4. 1.2 Film-Tape Length - The length of the Film-Tape, including
leader and trailer ends, shall not exceed 75 feet for BIT, and 240 feet
Figure 1. Film, Photographic, 105-mm Dimensions