MIL-PRF-43906D
3.8 Mildew resistance. The cloth shall be mildew resistant. If plastizers are used they should
be restricted to phosphate or pthalate esters for the purpose of providing mildew resistance
(see 4.4.15).
3.9 Face side identification. The face side of the waterproof cloth shall be identified by
applying a stamping on that side of the cloth with the word "Face" on each end of each
individual piece.
3.10 Fiber identification. Each roll shall be labeled and ticketed for fiber content in
accordance with the Rules and Regulations Under the Textile Fiber Products Identification
Act.
3.11 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. Qualification 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 4.3.1 and shall be tested for the characteristics specified in Table IV.
4.3 Quality conformance inspection. Sampling for inspection shall be as specified in the
contract or purchase order.
4.3.1 End item examination.
4.3.1.1 Yard by yard examination. During the yard by yard examination, each roll in the
sample shall be examined for the defects listed below. The yardage of each roll in the sample
shall be examined on both sides. The yardage shall be given a through-light inspection for
pinholes and thin areas. The through-light inspection shall be performed in accordance with
MIL-STD-1487. The 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 one 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.
Defect
Any cut, hole, tear, scratch, or abrasion mark
Any pinhole
Any unfinished area (if finished)
Any thin area (applies to face side only)
Any pit, blister, tunnel, or separation of finish (if finished)
Any lump or thick area
Any crease or wrinkle resulting in doubling or adhesion of surfaces that cannot be corrected
by manual pressure
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