MIL-PRF-49318A(CR)
Humidity
3.6.7
4.6.7
X
Immersion
3.6.8
4.6.8
x
4.3.2.3.1 Group C failure. Action required upon occurrence of a Group C failure shall be
as specified in the contract or purchase order (see 6.2.g).
4.3.2.3.2 Disposition of Group C samples. Units completing Group C inspection shall be
refurbished, as necessary, subjected to the tests of Table II and shipped as part of the contract.
4.3.2.4 Group D inspection. Group D inspection shall be conducted on units selected from
lots which have successfully passed Group B tests.
TABLE VI. Group D inspection.
Inspection
Requirement paragraph
Test method
Reliability
3.5.14
4.5.14
4.4 Reliability test. Reliability testing shall be conducted on Assessor units selected from
units which have passed the tests in 4.3.2.1. Tests shall be conducted in accordance with
Table VI.
4.4.1 Sampling for reliability testing. The reliability acceptance test shall be performed on
Assessor units from each production lot submitted. The sample size shall be two units per lot for
a total of ten samples.
4.4.2 Reliability failures. Actions required relative to reliability failures shall be as
specified in the contract or purchase order (see 6.2.g).
4.4.3 Reinspection of reliability sample units. Unless otherwise specified, sample units
which have been subjected to and passed reliability tests may be accepted on contract or purchase
order provided all damage is repaired and the units are re-subjected to and pass Group A
inspection.
4.5 Methods of inspection.
4.5.1 Light levels. Each required light level of the Assessor shall be measured by
mounting a calibrated photo diode detector assembly in the Goggle adapter and measuring the
current through the detector with a digital ammeter. The measured current will be compared to a
calibration matrix.
4.5.2 Resolution. The test set shall be mounted in a holding fixture with a high intensity
light source positioned at the Assessor's test port.
4.5.3 Output collimation. The Assessor shall be positioned in a holding fixture with a
high intensity light source illuminating the Assessor's test port. A diopter scope shall be used to
measure the exact diopter focus. The reading shall be between 0.0 and -0.02 diopters.
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