MIL-PRF-5425E
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 Qualification inspection. Qualification inspection shall consist of all the tests specified in
table IV.
TABLE IV. Qualification inspection.
REQUIREMENT
TEST METHOD
CHARACTERISTIC
PARAGRAPH
OR PARAGRAPH
Thickness
3.2.3
4.5.1
Specific gravity
Table II
ASTM-D792
Water absorption
Table I
ASTM-D570
Rate of burning
Table I
ASTM-D635
Coefficient of thermal expansion
Table II
4.5.2
Formability
3.4
4.5.3
Internal strain
Table II
4.5.4
Flexural deformation temperature
Table II
4.5.5
Tensile strength
Table II
4.5.6.1
Elongation
Table II
4.5.6.2
Ultraviolet transmittance
Table II
4.5.7
Index of refraction
Table II
4.5.8
Luminous transmittance
Table II
4.5.9
Haze
Table II
4.5.9
Resistance to weathering
3.5
4.5.10
Warpage after accelerated weathering
Table I
4.5.11
Optical uniformity
3.6
4.5.12
Thermal stability
Table II
4.5.13
Instruction sheet
3.7
Visual
Protective covering
3.8
Visual
7
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