The test standard summaries are for general guidance only. Though believed to be accurate at the time of writing, this may change over time. So this information should not be used as a substitute for referring to a complete test standard, at an appropriate revision level.
Note: the terms salt spray, salt mist & salt fog are all in wide spread use within corrosion test standards. In this context they can be considered to be equivalent and interchangeable terms.
Jaguar Land Rover Laboratory Accelerated Cyclic Corrosion Test
This test procedure from JLR applies to components, assemblies and sub-assemblies used in all JLR vehicles where the corrosion resistance (cosmetic or perforation) of metals and interacting materials needs to be evaluated.
It has been developed to allow the evaluation of the corrosion resistance of metals in environments where there is a significant influence of chloride ions, mainly as sodium chloride from a marine source or by winter road de-icing salt. This test is cyclic in nature, i.e.; test specimens are exposed to changing climates over time.
Test specimens are placed in an enclosed chamber and exposed to a changing climate. The 24 hour test cycle consists of a 6 hour wet phase at 25 °C ±2 °C with intermittent salt spray, a two-step transition phase with drying under climate control (2.5 hours) and a 15.5 hour phase at constant temperature and humidity (50 °C ±1 °C, 70% ±3% RH).
The 24 hour profile is then repeated for the specified number of cycles.
This test is also referred to as a Cyclic Corrosion Test, often abbreviated to CCT.
Ref: JLR Corrosion Test, Jaguar Corrosion Test, TPJLR52265, JLR52265, TPJLR-52-265