Division 3.6.3 F1
The vehicle shall then be kept in the soak area such that the time from the end of the preconditioning test to the beginning of the ATCT test is equal to tsoak_ATCT with a tolerance of an additional 15 minutes. At the request of the manufacturer, and upon approval of the approval authority, tsoak_ATCT can be extended by up to 120 minutes. In this case, the extended time shall be used for the cool down specified in paragraph 3.9. of this Sub-Annex 6a.