MIL-DTL-62474F
draft or convection type oven in a stream of ambient air heated to 200 +10°F (93 +5°C) until no
further change of mass occurs when the panel is weighed with an error of less than 0.1% after
cooling to room temperature in the standard atmosphere for testing textiles as defined in ASTM
D123. Calculate the unit weight to three significant figures as follows:
1000000 M Kg/m2
Unit Weight =
LW
Where M is the dry panel weight in kilograms measured with an error of less than 0.1%, L is the
length of the panel in millimeters measured to the nearest 2 millimeters and W is the width of the
panel in millimeters measured to the nearest 2 millimeters (see table Ia.)
4.3.4.2 Peel-ply test. The peel-ply test shall consist of removing the peel-plies by hand.
4.3.4.3 Temperature resistance test. The temperature resistance test shall be performed
as specified in MIL-STD-810, except the temperature extremes and number of cycles shall be as
specified in 3.4.2.
4.3.4.4 Failure. Failure of the samples to meet the control test requirements shall be
cause for the Government to refuse acceptance of quality conformance samples until the cause of
failure(s) is identified, corrective action is taken by the contractor, and approved by the
Government.
4.3.5 Ballistic control test. The contractor shall supply two test samples 20 in. by 20 in.
(508 mm by 508 mm) by contract designated plies or areal density for each three months of test
laminate fabrication for ballistic control testing at the facility identified by the procuring activity
to show conformance to 3.4.3 (see 6.2). The test panels shall be adequately identified as to
contractor, contract number, manufacturer, and date.
4.3.5.1 Ballistic test. The ballistic resistance test shall be conducted in accordance with
MIL-STD-662. Test projectile shall be the caliber 0.30 (44 grain) fragment simulating projectile
at 0° obliquity. The V50 protection ballistic limit reported shall be the average of two
determinations made on separate laminates. Each determination shall be a six round V50 ballistic
limit with a maximum velocity spread of 125 ft/sec.
4.3.5.2 Failure. Failure of the samples to meet the control test requirements shall be
cause for the Government to stop acceptance of quality conformance samples until the cause of
failure(s) is identified, corrective action is taken by the contractor, and approved by the
Government.
4.4 Materials, design and construction. To determine conformance to 3.2 thru 3.2.2 and
3.3 thru 3.3.1.1, inspection and material certification records shall be maintained by the
contractor. Records shall be subject to review by the Government and shall be determined by
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