ASTM E2877, Guide for Digital Contact Thermometers, provides variety of recommendations for the manufacture and selection of digital thermometers. Standard includes set of accuracy classes which pertain to temperature interval from -200 through 500°C, an interval important for many thermometry applications. In addition, ASTM E2877 describes 3 types of sensors used in digital thermometers: platinum resistance sensors, thermistors, and thermocouples.
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