3.1 Pretest
The following information is required to conduct explosive atmosphere tests adequately.
- a. General. Information listed in Part One, paragraphs 5.7 and 5.9, and Annex A, Task 405 of this Standard.
- b. Specific to this Method.
- (1) Additional test altitudes (other than the maximum operating altitude and site pressure).
- (2) The fuel volume and/or weight.
- (3) Calculation for the quantity of fuel required at each test altitude.
- (4) The off/on cycling rate for the test item.
- (5) Any information relative to the location of spark-emitting devices or high temperature components.
- 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) Periods of operation versus test altitude (on/off points).
- (2) Quantity of fuel introduced for each test altitude.
- (3) Occurrence of any explosion caused by the test item and the respective altitude and temperature at which the event occurred.
3.3 Post-Test
The following post test data shall be included in the test report.
- a. General. See Part One, paragraph 5.13; and Annex A, Task 406.
- b. Specific to this Method.
- (1) Chamber test altitude and temperature for each operational check.
- (2) Occurrence of any explosion caused by the test item.
- (3) Initial analysis of any failures/problems.
- (4) Any deviation from the original test plan.
- (5) Test item temperature for each operational check.