MIL-DTL-13455E
4.2 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be
conducted under the following conditions:
a. Air temperature: 55 to 91°F (13 to 33°C).
b. Barometric pressure: 28.5 (+2.0, -3.0) inches of Hg (97 (+6.8, -10 kPa)).
c. Relative humidity: 50 +30%.
4.3 First article inspection. Unless otherwise specified (see 6.2), first article inspection
shall be performed on four light filters when a first article sample is required. This inspection shall
include the examinations of 4.4.1 (see table III) and the tests of table II.
TABLE II. Classification of inspections.
Conformance
First Exami-
article nation Tests
Title
Requirement
Inspection
Materials
3.2 thru 3.3.1
4.5.1
X
Selectivity
3.4.1.1.1
4.5.2.1
X
X
Transmission analysis
3.4.1.1.2
4.5.3
X
X
Reflection
3.4.2
4.5.3.4
X
Weathering
3.4.3
4.5.3.5
X
TABLE III. Classification of defects.
Method of
examination
Category
Defects
Critical
None
Major:
101
Assembly incomplete (see 3.3).
Visual
102
Dimensions affecting interchangeability, out of
SIE 1/
tolerance (see 3.3).
103
Improper marking (see 3.5).
Visual
104
Faulty workmanship affecting performance (see 3.7).
Visual
Minor:
201
Dimensions not affecting interchangeability, out of
SIE
tolerance (see 3.3).
202
Improper marking (see 3.5).
Visual
203
Faulty workmanship affecting appearance (see 3.7).
Visual
1/ SIE = Standard Inspection Equipment.
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