511.7 EXPLOSIVE ATMOSPHERE CONTENTS
| Paragraph | Page | |
|---|---|---|
| 1. | SCOPE | 1 |
| 1.1 | PURPOSE | 1 |
| 1.2 | APPLICATION | 1 |
| 1.3 | LIMITATIONS. | 1 |
| 2. | TAILORING GUIDANCE. | 1 |
| 2.1 | SELECTING THE EXPLOSIVE ATMOSPHERE METHOD. | 1 |
| 2.1.1 | PROCEDURE I - EXPLOSIVE ATMOSPHERE. | 2 |
| 2.1.2 | PROCEDURE II - EXPLOSION CONTAINMENT | 2 |
| 2.1.3 | EFFECTS OF EXPLOSIVE ATMOSPHERE ENVIRONMENTS. | 2 |
| 2.1.4 | SEQUENCE AMONG OTHER METHODS. | 2 |
| 2.2 | SELECTING PROCEDURE VARIATIONS | 2 |
| 2.2.1 | FUEL | 2 |
| 2.2.2 | FUEL-VAPOR MIXTURE. | 3 |
| 2.2.3 | TEMPERATURE. | 4 |
| 2.2.4 | EFFECT OF HUMIDITY ON FLAMMABLE ATMOSPHERE | 4 |
| 2.2.5 | ALTITUDE SIMULATION | 4 |
| 2.3 | DEFINITIONS | 4 |
| 3. | INFORMATION REQUIRED. | 5 |
| 3.1 | PRETEST. | 5 |
| 3.2 | DURING TEST. | 5 |
| 3.3 | POST-TEST. | 5 |
| 4. | TEST PROCESS. | 5 |
| 4.1 | TEST FACILITY. | 5 |
| 4.2 | CONTROLS. | 6 |
| 4.3 | TEST INTERRUPTION. | 6 |
| 4.3.1 | TEST INTERRUPTION DUE TO CHAMBER MALFUNCTION. | 6 |
| 4.3.2 | TEST INTERRUPTION DUE TO TEST ITEM OPERATION FAILURE. | 6 |
| 4.4 | TEST SETUP.. | 6 |
| 4.5 | TEST EXECUTION. | 6 |
| 4.5.1 | PREPARATION FOR TEST.. | 6 |
| 4.5.2 | PROCEDURE I - OPERATION IN AN EXPLOSIVE ATMOSPHERE | 7 |
| 4.5.3 | PROCEDURE II - EXPLOSION CONTAINMENT | 9 |
| 5. | ANALYSIS OF RESULTS. | 10 |
| 6. | REFERENCE/RELATED DOCUMENTS. | 10 |
| 6.1 | REFERENCED DOCUMENTS. | 10 |
| 6.2 | RELATED DOCUMENTS. | 10 |
MIL-STD-810H METHOD
511.7 CONTENTS - Continued
| Paragraph | Page | |
|---|---|---|
| FIGURES | ||
| FIGURE 511.7-1. | SPECIFIC GRAVITY OF N-HEXANE | 4 |
| FIGURE 511.7-2. | TYPICAL REPRESENTATION OF PROCEDURE I CONDUCT. | 9 |
MIL-STD-810H
METHOD 511.7
METHOD
511.7 EXPLOSIVE ATMOSPHERE
NOTE: Tailoring is essential. Select methods, procedures, and parameter levels based on the tailoring process described in Part One, paragraph 4.2.2, and Annex C. Apply the general guidelines for laboratory test methods described in Part One, paragraph 5 of this Standard.