There is occasion for samples to be tested at alternate temperatures, typically lowered temperatures, so that an analysis of embrittlement can be performed. In these cases the ASTM standard states that the sample has be at the test temperature for a minimum of five minutes prior to testing. Additionally the locating tongs, used to put the sample in place on the support anvils, must be kept at the test temperature. When the system is ready, the sample must be removed from the cooling medium, placed on the anvils and the test performed within 5 seconds of removing the sample from the cooling medium.

An alternative to this is a heating and/or cooling system that can bring the sample to test temperature on the support anvils – in fact the anvils are parts of the heating and cooling system, however, this can be an expensive option. This option allows accurate placement of the test specimen, rapid cooling or heating of the sample and, since there is no time constraint imposed on completion of the test, a subsequent faster throughput of accurately tested samples can be achieved.