Downloaded from https://www.everyspec.com MIL-STD-810C Step 6 After completion of the fifth cycle with the test item in the chamber and the chamber at 30° t5”C (86” t9°F) and a relative humidity of not less than 95 percent, take measurements speci- fied in the equipment specification (no repair, realignment, readjustment or replacement of parts shall be made, except as specified herein). Obtain results in accordance with General Requirements, 3.2. Step 7 Condition the test item at *5° C (77° *9”F) and 50 +5 percent relative humidity for not less than 12 hours nor more than 24 hours.
Step 8 - While at f5° C (77° + 0 .9 F) and 50 percent relative humidity, take measurements as specified in the equipment specification. Step 9 - Inspect test item to detect evidence of physical degradation (such as corrosion of metal parts, distortion of plastic parts, and insufficient lubricationof moving parts) in accordance with General Requirements, 3.2. 3.5 Procedure V. Ammunition and natural environment cycles. Step 1 - Prepare the test item in accordance with General Requirements, 3.2,.except that initial measurements are taken in step 5. Step 2 - Dry the test item at 54°C (129”F) for 24 hours.
Step 3 - Condition the test item at 23° C (73”F) and f 10 percent relative humidity for 24 hours. Step 4 - Gradually raise the internal chamber temperature to 40.5° C (105”F) and 90 percent relative humidity in 2 hours. Take initial measurements in accordance with General Require- ments, 3.2. I NOTE: The test item may be readjusted or realimed as necessarY to meet I specification requirements. No ~urther readjus~ment or realignment shall be permitted throughout the test period other than i’ithaccessible controls employed for operation of the test item. No repair or replacement of parts shall be permitted. Equipment shal1b,e operated only when specified test measurements are being performed.
Step 5 - METHOD 507.1 507.1-8