A.4.1

The maximum device is tested for compliance with the requirements of 5.4.

A.4.2

Immediately after the test at the maximum test temperature, all of the thermometers under examination are placed, blub outwards, in a centrifuge (A.1.2.2.4) and their mercury columns are made to recede.

In accordance with 5.4, the speed of the centrifuge is regulated so that the mercury at the bottom of the bulbs is subjected to an acceleration of . Once this acceleration is reached, the centrifuge is switched off.

All thermometers in which the mercury column has not dropped below the lowest numbered line must be rejected.

During this test, the ambient temperature must be lower than the minimum scale value of the thermometers.