Corrosion testing of metallic coatings – neutral salt spray test
Can be used to test the relative resistance to corrosion of metallic coatings, 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 neutral (pH 6.5 to 7.2) 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 NSS test.
Horizontal and vertical test chambers
for salt spray, condensation humidity and cyclic corrosion tests.
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