Downloaded from https://www.everyspec.com MIL-STD-810D. 19 July 1983 Step 9. Energize the internal oaae ignition source. o Step 10. Confirm the occurrence of an explosion within the test item using the installed thermocouple. If no explosion occurs, purge the chamber and.the test item of all air/fuel vapor and’return to step 2. Step 11. If the explosion inside the test item’s case did not propagate to the fuel-air mixture.outside the teat item, repeat steps 7 through 10 five times if the.test item1s case,’isnot in excess of one fiftieth of the test chamber volume.
If the test item volume is.greater than one Fiftieth of the chamber vOlume, Purge the chamber and test item of air/fuel vapor and return to .. step 2. ,. .T Step 12. Check the potential explosiveness of the air-fuel vapor mixture by attempting to ignite a sample of the mixture by..a spark ‘orglow plug. If chamber sample doea not ignite, purge the chamber of all air/fuel-vapor mixture;.and ,repeatthe entire test from step 2. ,.. . ....! Step .13. Document the ‘test t’eSUlta. .,. . ,,. .,. a. Testeprocedure number. ,;~~ ,. ..’, b. Chamber pressure and.temperatures at each,test point (simulated altitude); . . 0 11-4~” .:-..’ c.
For Procedure II, the locations of glow plugs or spark gaps installed inside test items. d. For.Procedure II, energy requirement forthe glow plug or spark‘gaps for operation. e.. The quantity of fuel.required at each test point. f. The offlon cycling rate for the teat equipment. J, ,. ,, .. . . . .. :...’ ,. ,.. , METHOD 511.2 19 July 1983 511.2-9