ENVIRONMENTAL TESTS33 Thermal Cycling Test (LER Motive Applications)33.1 This test determines the electrical energy storage system’s ability to withstand temperature fluctuations that may be anticipated during the end-use application. This test is only applicable to LER motive applications.33.2 A fully charged electric energy storage system (MOSOC per 6.1) is to be placed in a test chamber and subjected to the following cycles in (a) – (e). At the conclusion of the cycling, the samples are to remain at room temperature, 25 ±5°C (77 ±9°F) for 24 h.a) Raising the chamber-temperature to 75 ±2°C (167 ±3.6°F) within 30 min and maintaining this temperature for 6 h.b) Reducing the chamber temperature to 20 ±2°C (68 ±3.6°F) within 30 min and maintainingthis temperature for 2 h.c) Reducing the chamber temperature to minus 40 ±2°C (minus 40 ±3.6°F) within 30 min and maintaining this temperature for 6 h.d) Raising the chamber temperature to 20 ±2°C (68 ±3.6°F) within 30 min.e) Repeating the sequence for a further 9 cycles