The CCT tests has been developed to evaluate the corrosion protection predominantly in the automotive inductry by using accelerated laboratory tests. The idea behind the CCT tests is to simulate the actual conditions in which the vehicles are normally being used. These tests are cyclic in nature, meaning that the test specimens are exposed to changing climates over time. Tests cpecimen are plased in an test chamber and exposed to essentially four type of climates:
- Salt spray in accordance with DIN EN ISO 9227 (NSS, ESS or CASS)
- Water condensation according to DIN EN ISO 6270-2 (CH, AT or AHT)
- Aeration with room air or air according to ISO 554 (for VW PV1210)
- Forced drying with warm air acording to GMW 14872
The number of cycles is repeated and therefore is the total test duration variable.