Downloaded from https://www.everyspec.com MIL-STD-810D 19 July 1983 METHOD 503.2 TEMPERATURE SHOCK g%se SECTION I I-1 PURPOSE . . . . . . . . . . . . . . . . . . . .. . -.503.2-1. I-2 ENVIRONMENTAL EFFECTS . . . . . . . . . . . . . . . . . 503.2-1 I-3 GUIDELINES FOR,DETERMINING TEST PROCEDURES.AND,TEST CONDITIONS . . . . . . . . . . . 503.2-2 1-4 SPECIAL CONSIDERATIONS . . . . . . . . . . . . . . . . 503.2-9 I-5 REFERENCES . . . . . . . . . . . . . . . ..~ . ...523.2-9 ,. SECTION II II-1 APPARATUS . . :........ . . . . . . . . . . .. .503.2-10 II-2 PREPARATION FOR TEST . . . . . . . . . . . . . . . . . 503.2-11 II-3 PROCEDURE . . . . . . . . . . . . ... . . . . . . .
.503.2-12 II-4 INFORMATION TO BE RECORDED . . . . . . . . . . . . . . 503.2-12 SECTION I I-1 ~. Temperature shock tests are conducted to determine if materiel can withstand sudden changes in the temperature of the surrounding atmosphere without experiencing physical damage.or deterioration in Performance. 1-.2 ~. As a result of exposure to sudden temperature changes, operation of the test item may be affected either temporarily or permanently. Examples of problems that could occur as a result of exposure to sudden changes In temperature are: ,, of glass, vials, and optical equipment. a. Shattering b. Binding or slackening of moving parts. c. Separation of constituents. d.
Changes in electronic components. e. Electronic formation. or mechanical failures due to rapid water or frost f. Cracking of eolid pellets or graine in explosives. 6. Differential contraction or expansion of dissimilar materiala. s_ METHOD 503.2 503.2-1 19 July 1983