MIL-DTL-62474F
TABLE IV. Classification of inspections.
Conformance
Require-
Inspec-
First
Conform- In- process
Control
Title
ment
tion
article
ance exam
exams
tests
Materials and design
3.2 thru
4.4.1
X
Construction
3.3.1.1
Dimension and structure
3.3.1
4.3.3
X
X
Thickness and flatness
3.3.1.1
4.3.3
X
X
Variation
Weights
3.3.1.2
4.3.4.1
X
X
X
3.3.2
4.3.3
X
X
Lamination pressures
and
Temperatures
Finished laminate
3.3.3
4.3.3.1
X
X
Peel-ply removal
3.4.1
4.3.4.2
X
Ballistic resistance
3.4.3
4.3.5.1
X
X
Workmanship
3.5
4.3.5
X
X
X
4.3.1 Sampling.
4.3.1.1 Lot formation. An inspection lot shall consist of all the laminated assemblies of
one type and part number, from an identifiable production period, from one manufacturer,
submitted at one time for acceptance.
4.3.1.2 Sampling for examination. All laminates shall be examined.
4.3.2 Conformance examination. All laminates shall meet the visual criteria as specified
in 3.5.
4.3.3 In-process examination. To determine conformance to 3.3.1 through 3.3.3, the
contractor shall initiate, perform and document on an essentially continuous basis, an in-process
procedure consisting of process controls and examination criteria satisfactory to the Government.
4.3.4 Control tests. The contractor shall supply two test samples, 20 in. x 20 in.
(508 mm x 508 mm), for each month of laminate fabrication, for control testing. The samples
shall have the contract designated plies or areal density and shall be produced with materials and
processes used for production laminates. Testing shall be carried out by the contractor under
Government surveillance and shall consist of tests to show conformance to 3.3.1.2, 3.4.1, 3.4.2,
and 3.5.
4.3.4.1 Determination of laminate unit weight. The unit weight or areal density of a
finished laminate is determined as follows: Choose a square laminate of nominal size at least
20 in. by 20 in. (508 mm x 508 mm) and remove peel-plies (see 3.3.3). Dry the panel in a forced
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