Altitude

Method 518.2 is the Acidic Atmosphere test from MIL-STD-810H. Section 518.1 (Purpose) states that the acidic atmosphere test is used to determine the resistance of materials and protective coatings to corrosive atmospheres, and when necessary, to determine its effect on operational capabilities.The test exposes materiel to a controlled acidic environment to evaluate the degradation of […] Read more

Salt Fog

Method 509.7 is the Salt Fog test from MIL-STD-810H. It is performed to determine the effectiveness of protective coatings and finishes on materials and may also be applied to determine the effects of salt deposits on the physical and electrical aspects of materiel.The method is used for screening purposes only to evaluate the effectiveness and […] Read more

Low Temperature

Method 502.7 is the Low Temperature test from MIL-STD-810H. Section 502.1 (Purpose) states that low temperature tests are used to obtain data to help evaluate effects of low temperature conditions on materiel safety, integrity, and performance during storage, operation, and manipulation.The test includes procedures for cold storage, cold operation, and manipulation at low temperatures to […] Read more

Temperature Life (Life Aging)

Measurement 3303.2 is a Temperature Life (Life Aging) test for fiber optic cable topology (FOCT) components. This measurement is performed when there is the requirement to subject the FOCT component or device under test (DUT) to an elevated temperature effect with a specified duration.This test is intended to be used as part of qualification testing. […] Read more

Shock Pulse

Method 213B is the Shock (Specified Pulse) test, conducted to determine the suitability of component parts and subassemblies of electrical and electronic components when subjected to shocks such as those expected from rough handling, transportation, and military operations.This test differs from other shock tests in that the design of the shock machine is not specified, […] Read more

Immersion – Condition B

Method 104 is the Immersion test to determine the effectiveness of the seal of component parts. The immersion of the part into liquid at widely different temperatures subjects it to thermal and mechanical stresses which readily detect a defective terminal assembly, or a partially closed seam or molded enclosure.Defects of these types can result from […] Read more

Resistance – Temperature Characteristic

Method 304 is the Resistance-Temperature Characteristic test to determine the percentage change in direct-current (DC) ohmic resistance from the DC ohmic resistance at the reference temperature, per unit temperature difference between the test temperature and the reference temperature.The equation used to calculate this characteristic, commonly called the ‘temperature coefficient of resistance,’ establishes how a component’s […] Read more

Resistance to Solvents

Method 215 is the Resistance to Solvents test with two purposes: (a) to verify that markings or color coding will not become illegible or discolored on parts when subjected to solvents normally used to clean solder flux, fingerprints, and other contaminants from printed-wiring and terminal-board assemblies; and (b) to verify that component protective coating, encapsulation […] Read more

Corrosion Resistance – Salt Fog – Condition B

Method 101 is the Salt Atmosphere (Corrosion) test. Specimens are subjected to a fine mist of salt solution to evaluate the effectiveness and quality of protective coatings and finishes on metals. Originally proposed as an accelerated laboratory corrosion test simulating the effects of seacoast atmospheres.Experience has shown that there is seldom a direct relationship between […] Read more

Low Temperature Operation

Method 4.7.29 is a low temperature operation test for military relays. The relay is subjected to the specified low temperature for a period of 48 hours. At the end of this period, with the relay still at the low temperature, the pickup voltage, dropout voltage, and contact voltage drop are measured.The measurements are performed as […] Read more

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