507.6-3 BREATHING
Air exchange between a hollow space and its surroundings caused by temperature variations. This commonly induces condensation inside the hollow space.
3.1 Pretest
The following information is required to conduct humidity tests adequately.
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a. General. Information listed in Part One, paragraphs 5.7 and 5.9, and Annex A, Task 405 of this Standard.
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b. Specific to this Method.
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(1) Any sealed areas of the test item to be opened during testing or vice versa.
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(2) If an operational test procedure is required following the Induced (Storage and Transit) test.
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(3) Periods of materiel operation or designated times for visual examinations (see paragraph 2.4.1).
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(4) Operating test procedures, if appropriate.
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c. Tailoring. Necessary variations in the basic test procedures to accommodate environments identified in the LCEP.
3.2 During Test
Collect the following information during conduct of the test:
- a. General. Information listed in Part One, paragraph 5.10, and in Annex A, Tasks 405 and 406 of this Standard.
- b. Specific to this Method.
- (1) Record of chamber temperature and humidity versus time conditions.
- (2) Test item performance data and time/duration of checks.
3.3 Post-Test
The following post test data shall be included in the test report.
- a. General. Information listed in Part One, paragraph 5.13, and in Annex A, Task 406 of this Standard.
- b. Specific to this Method.
- (1) Previous test methods to which the test item has been subjected.
- (2) Results of each operational check (before, during, and after test) and visual examination (and photographs, if applicable).
- (3) Length of time required for each operational check.
- (4) Exposure durations and/or number of test cycles.
- (5) Test item configuration and special test setup provisions.
- (6) Any deviation from published cycles / procedures.
- (7) Any deviations from the original test plan.