MIL-PRF-20696F
1/ Requirement applies if a film or coating is applied to the surface of the cloth.
2/ The cloth shall show no softness, stiffness, tackiness or brittleness when compared with an
unexposed specimen.
3/ The tip of the flame shall not pass beyond the top edge of the test specimen before 42
seconds after the start of the burner flame.
4/ No leakage in any portion of the test specimen.
5/ No evidence of seepage of oil through the cloth.
6/ The cloth shall not crack or flake.
7/ The cloth shall show no evidence of cracking, crazing, blooming, chalking or appreciable
color change.
8/ The cloth shall show no softness, tackiness or blistering.
9/ Applicable only when required by the contract or purchase order.
3.8 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible
provided that the material meets or exceeds the operational and maintenance requirements,
and promotes economically advantageous life cycle costs.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified
as follows:
a. First article inspection (see 4.2).
b. Conformance inspection (see 4.3).
4.2 First article inspection. When a first article is required (see 6.2) it shall be examined for
the defects listed in 4.3.2.1 and shall be tested for the characteristics specified in Table II.
4.3 Conformance inspection. Sampling for inspection shall be as specified in the contract or
purchase order.
4.3.1 Certificates of component. If dusting powder is used, it shall be accepted on the basis
of a contractor's certificate of compliance with the requirements.
4.3.2 End item examination.
4.3.2.1 Yard by yard examination. During the yard by yard examination, each roll in the
sample shall be examined, on one side only, for the defects listed below. However, the side
of the cloth examined shall be alternated on every other roll examined (except for Type III,
Class 5 cloth). The same yardage shall be given a through-lighting inspection for pinholes
and thin areas in accordance with MIL-STD-1487. All defects found shall be counted
regardless of their proximity to each other, except where two or more defects represent a
single local condition of the cloth, in which case only the more serious defect shall be
counted. A continuous defect shall be counted as one defect for each warpwise yard or
fraction thereof in which it occurs. The sample unit shall be one linear yard. An approximate
equal number of yards shall be examined from each roll in the sample.
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