Corrosion is destructive chemical or electrochemical reaction of materials with its environment, resulting surface deterioration or a breakdown in properties. Salt spray test is an accelerated corrosion test that produces a corrosive attack to the specimens of metals and coated metals in order to predict its suitability in use as a protective finish.
Corrosion Testing is used primarily to determine the corrosion resistance of painted or coated metal samples. A 5% salt water solution in a pH range of 6.5 –7.2 is atomized as a fog into the heated chamber maintained at 95℉±3℉（35℃±2℃）. Test time ranges from 24 to thousands of hours,usually in 24 hour increments.Our salt spray test chamber can provide exposurt to a salt intensive stmosphere at designated temperature and testing period matching the proper specification.
Reference standard: 
GB/T 2423.17: GB/T 10125; GB.T 2423.18;  ISO 9227; IEC 60068-2-52; IEC 60068-2-11; ASTM B 117; ASTM B 368; MIL-STD-202; EIA-364-26
(1) Neutral salt spray（NSS）
Solution: 5% NaCl
PH: 6.5~7.2
Chamber temperature: 35℃
Salt settlement: 1～2ml/80cm2/h
(2) Acetic acid salt spray（AASS）
Solution: 5% NaCl with acetic acid
PH: 3.1~3.3
Chamber temperature: 35℃
Salt settlement:1～2ml/80cm2/h
(3)copper-accelerated acid salt spray（CASS）
 Solution: 5% NaCl with acetic acid
CuCl2?H2O: 0.26g/l?.02g/l
PH: 3.1~3.3
Chamber temperature: 50℃
Salt settlement:1～2ml/80cm2/h
(4) Salt mist, cyclicSalt mist
Solution: 5% NaCl
PH: 6.5~7.2
Chamber temperature: 35℃
Salt settlement: 1～2ml/80cm2/h
Temperature & Humidity:
Temperature: 40℃
Humidity: 93%( 2%/-3%)