Coating corrosion resistance inspection - thioethylene amine corrosion test

Thioethylene amine corrosion test (TAA test) is a test method used to evaluate the anti-tarnish effect of silver or copper plating and imitation gold plating.

During the test, the volatility of thioethyleneamine was used to release the corresponding gas, and the relative humidity was maintained at about 75% by the saturated sodium acid acid solution. In this atmosphere, the sample makes the coating react with thioethyleneamine vapor, so as to evaluate its anti-tarnish performance. (Related instruments: constant temperature and humidity Test Chamber)

The result of this test is generally evaluated by the degree of discoloration of the coating to indicate whether it is qualified or not. Since thioethyleneamine is harmful to the human body, it should avoid direct contact with the skin during operation. (Related instrument: Colorimeter)