Corrosion testing of metallic coatings – acetic acid salt spray test
Can be used to test the relative resistance to corrosion of metallic coatings, when exposed to an acetic acid salt spray climate at an elevated temperature.
Test specimens are placed in an enclosed chamber and exposed to a continuous indirect spray of acidified (pH 3.1to 3.3) salt water solution, which falls-out on to the specimens at a rate of 1.0 to 2.0ml/80cm²/hour, in a chamber temperature of +35C. This climate is maintained under constant steady state conditions. The test duration is variable.
Chamber volumes of less than 200 Litres are not permitted by this test standard.
This test is also referred to as an ASS test.
Horizontal and vertical test chambers
for salt spray, condensation humidity and cyclic corrosion tests.
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