Salt Spray Test is normally used to verify surface quality on surface materials and simulate products application to be used in island countries or on marine vessels.where is with salty atmosphere.
According to USA military specifications.
Salt Spray Test should evaluate the quality of protective coatings.
The test cannot replace the humidity and mold effects; therefore, the results
cannot evaluate the environment.
Salt Spray Test is usually conducted after climatic testing to better identify
the flaws on the coating.
Compare IEC standard with MIL standards, only the purity of the salt in the MIL standard is a little different, the temperature and salt concentration is practically the same. From experiences, alternating humidity and salt spray cycling is better at inspecting flaws and faults and verifying the coating quality than a fixed temperature and Salt Spray Test.