MIL-PRF-3420H
TABLE III. Examination of end item for defects in appearance, construction, and workmanship.
EXAMINATION
DEFECT
(Check both sides of treated carrier.)
Form of material
Not rolled or flat cut, as specified.
Appearance
Surfaces not clean; presence of any foreign matter,
dirt, sand, grit or oil spots. (NOTE: Defects do not
apply to outer convolution of roll.)
Workmanship
Delamination.
Embrittlement.
Any hole (excluding optical pinholes), tear, cut,
chafed spot or scuff mark. (Note: Defects do not
apply to outer convolution of roll.)
Edges not clean cut; ragged, crushed or uneven.
Construction
Not uniform.
Any layer or section missing.
Identification of material (marking)
Markings not made using water resistant ink.
Missing, incorrect, or illegible.
Not on backing surface where required.
Complete marking not repeated as specified in 3.5.
For roll material the lines of print not perpendicular
to the longer sides of material.
Tags or sheets, when applicable, not properly
located.
4.3.2.2 Examination of the end item for defects in general construction. The sample unit
for this examination shall be one roll or one package of sheets, as applicable.
4.3.2.3 Examination of the end item for dimensional defects. The sample unit for this
examination shall be one roll or one package of sheets, as applicable.
4.4 Test conditions and preparation.
4.4.1 Test conditions. Unless otherwise specified in the detailed test method herein, the
physical tests contained in this specification shall be made with an atmosphere having a relative
humidity of 50 ± 5 percent and a temperature ranging from 70 to 76°F (21 to 25°C). Material
shall be considered in equilibrium after exposure to the above conditions for a minimum of 24
hours.
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