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Salt Spray Chamber

Salt Spray Tester (Or salt fog test) is a pretty common corrosion test for various metal spare part.
Application range: usually used to check corrosion resistance of materials and surface coatings. And the materials range cover metallic (although stone, ceramics, and polymers may also be tested) and finished with a surface coating which is intended to provide a degree of corrosion protection to the underlying metal.

Determination: Salt spray testing is an accelerated corrosion test that produces a corrosive attack to coated samples in order to evaluate the suitability of the coating for use as a protective finish. The appearance of corrosion products is evaluated after a pre-determined period of time. Test duration depends on the corrosion resistance of the coating; generally, the more corrosion resistant the coating is, the longer the period of testing before the appearance of corrosion or rust.

Test Standard: ISO 9227, ASTM B117, ASTMG85, ISO:3769, ISO3770, ASTM B268, JIS: D0201, JIS H8502, JIS Z2371

Test Standard Explanation ISO 9227
This standard indicate the test items for neutral salt spray (NSS), acetic acid salt spray (AASS) and copper-accelerated acetic acid salt spray (CASS) tests for assessment of the corrosion resistance of metallic materials, with or without permanent or temporary corrosion protection.

Test method and operation condition for teach items: