Corrosion Testing Standards

The test standard summaries are for general guidance only. Though believed to be accurate at the time of writing, this may change over time. So this information should not be used as a substitute for referring to a complete test standard, at an appropriate revision level.
Note: the terms salt spray, salt mist & salt fog are all in wide spread use within corrosion test standards. In this context they can be considered to be equivalent and interchangeable terms.

MIL-STD-750

Semi-conductor devices: Salt Atmosphere (Corrosion)

This MIL standard had been revised and re-issued several times, with each issue being designated a new sequential suffix letter, which appears after the main standard number. With each revision the method number specific to this particular test may have changed, but the method itself is generally as follows:

Can be used to test the relative resistance of devices when exposed to a salt spray climate at an elevated temperature.

Test specimens are placed in an enclosed chamber and exposed to a continuous indirect spray of salt water solution, which falls-out on to the specimens at a rate that deposits 10 to 50 grams of salt per metre square of chamber area per 24 hours, in a chamber temperature of +35C. This climate is maintained under constant steady state conditions. The test duration is 24, +2, –0 hours.

For further information on US Dept of Defence MIL standards visit; www.nssn.org

To select an Ascott chamber suitable for this test click here