ABSTRACT
Temperature indicators serve for approximate determination of bodies’ temperatures and are used to control a variety of temperature treatment processes. e temperatures are determined based on knowledge of characteristic rated temperatures, which are mean critical temperatures of the indicator. However, it should be stressed that the accuracy of these measurements is satisfactory only if the measurement conditions are similar to the standard conditions for which the temperature indicators were calibrated. Otherwise, the critical temperatures of the indicators can be dierent from their rated temperatures listed in the standards, and the measurements can have considerable errors.
