OIML Recommendation R 84:2003

Platinum, copper, and nickel resistance thermometers (for industrial and commercial use)

Scope: This Recommendation specifies the metrological characteristics required for resistance thermometers having one or more sensing elements made of platinum, copper or nickel, designed for use in measuring temperatures in the range from – 200 °C to + 850 °C, or in a part of this range.