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       Salt spray test

      Salt spray test

      Salt-fog is the common and most destructive form of atmospheric corrosion. Salt spray test determines the ability of polymers or metals to withstand salt-based corrosion simulated in the Salt spray chamber. These tests are generally suitable as corrosion protection tests for rapid analysis for discontinuities, pores and damage in organic and inorganic coating.  There are four types of artificial salt spray test: neutral salt spray (NSS), acetic acid salt spray (AASS), Copper-accelerated acetic acid salt spray (CASS) and salt

       

      Reference standard: GB/T 2423.17;IEC 60068-2-11; GB/T 10125; ISO 9227;

      ASTM B 117; GB.T 2423.18; IEC 60068-2-52; ASTM B 368; MIL-STD-202; EIA-364-26

      (1) Neutral salt sprayNSS

      Solution: 5% NaCl

      PH: 6.5~7.2

      Chamber temperature: 35

      Salt settlement: 12ml/80cm2/h

       

      (2) Acetic acid salt sprayAASS

      Solution: 5% NaCl with acetic acid

      PH: 3.1~3.3

      Chamber temperature: 35

      Salt settlement:12ml/80cm2/h

       

      (3)copper-accelerated acid salt sprayCASS

      Solution: 5% NaCl with acetic acid

      CuCl2·2H2O: 0.26g/l±0.02g/l

      PH: 3.1~3.3

      Chamber temperature: 50

      Salt settlement:12ml/80cm2/h

       

      (4) Salt mist, cyclic

      Salt mist:

      Solution: 5% NaCl

      PH: 6.5~7.2

      Chamber temperature: 35

      Salt settlement: 12ml/80cm2/h

       

      Temperature & Humidity:

      Temperature: 40±2

      Humidity: 93%(+2%/-3%)

       


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