Jaguar Land Rover Laboratory Accelerated Cyclic Corrosion Test

TPJLR.52.265 is a Cyclic Corrosion Test Standard from JLR that 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.

TPJLR.52.265 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 to be evaluated 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.

Ref: JLR Corrosion Test, Jaguar Corrosion Test, TPJLR52265, JLR52265, TPJLR-52-265

This test is also referred to as a Cyclic Corrosion Test, often abbreviated to CCT.

This information was correct at time of writing and may have since varied.

Ascott Analytical provides a wide range of different sized equipment to fulfil this standard that will also fulfil many other standards using the same equipment. Further accessories can be added to widen this scope of test standards the equipment can be used to achieve as well of a range of jogs and fixtures for holding your materials during testing. Data Logging software applications and other useful testing tools are also an option.

For further Information:

Please contact Ascott Analytical via our contact page


Test method for resistance to salt fog (Jaguar)


This Jaguar automotive test standard is based upon test standard ASTM B117. Please see elsewhere in this document for details of ASTM B117.