MIL-DTL-87104C
4.6.4.4.3 Accept-reject criteria (see 3.5.3.6). If the equipment passes the accept-reject criteria specified in
4.6.1.2.2 and 4.6.2.1.2.5, it shall be considered to have passed the dust test.
4.6.4.5 Humidity test (see 3.5.3.7). The humidity test shall determine the resistance of the equipment to the
effects of exposure to a warm, highly humid atmosphere.
4.6.4.5.1 Test setup.
4.6.4.5.1.1 Test equipment. The apparatus as specified in MIL-STD-810, method 507.5, shall be required.
4.6.4.5.1.2 Test conditions. The test conditions shall be as specified in MIL-STD-810, method 507.5, procedure I,
and herein. Unless otherwise specified in the detail specification, the assembly shall be placed horizontally and
open-ended in the chamber.
4.6.4.5.2 Procedural steps. The humidity test shall be conducted in accordance with the following steps:
Step 1: Subject the test sample to examination of product, procedure II (see 4.6.1.2).
a.
Step 2: Subject the test sample to VSWR, procedure II (see 4.6.2.1.2).
b.
Step 3: Subject the test sample to the humidity test as specified in MIL-STD-810, method 507.5, procedure
c.
I, except exposure to the conditions of procedure I shall be for a period not less than 180 hours.
d.
Step 4: At the conclusion of the exposure to the humid atmosphere, remove the test sample from the
chamber.
e.
Step 5: Subject the test sample to examination of product, procedure II.
f.
Step 6: Subject the test sample to VSWR, procedure II.
4.6.4.5.3 Accept-reject criteria (see 3.5.3.7). If the assembly passes the accept-reject criteria specified in 4.6.1.2.2
and 4.6.2.1.2.5, the equipment shall be considered to have passed the humidity test.
4.6.4.6 Salt fog test (see 3.5.3.8). The salt fog test shall determine the resistance of the equipment to the effects
of a salt atmosphere.
4.6.4.6.1 Test setup.
4.6.4.6.1.1 Test equipment. The apparatus as specified in MIL-STD-810, method 509.5, shall be required.
4.6.4.6.1.2 Test conditions. The test conditions shall be as specified in MIL-STD-810, method 509.5, procedure I,
and herein. The test sample shall be open-minded.
4.6.4.6.2 Procedural steps. The salt fog test shall be conducted in accordance with the following steps:
Step 1: Subject the test sample to examination of product, procedure II (see 4.6.1.2).
a.
Step 2: Subject the test sample to VSWR, procedure II (see 4.6.2.1.2).
b.
Step 3: Subject the test sample to the salt fog test as specified in MIL-STD-810, method 509.5, procedure
c.
I, except exposure to the conditions of procedure shall be for a period not less than 130 hours.
d.
Step 4: At the conclusion of the exposure to the salt atmosphere, remove the test sample from the
chamber.
Step 5: Subject the test sample to the rated power (see 3.5.1.8) for 20 minutes at a frequency within 10
e.
percent of the high end of the frequency band for the assembly.
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