ASTM International Standard Specification for Mercury-in-Glass, Maximum Self-Registering Clinical Thermometers ASTM E667-98(2003)

This specification covers mercury-in-glass, reusable maximum self-registering clinical thermometers of the types commonly used for measuring body temperatures of humans and of animals. Clinical thermometers shall be classified as follows: basal metabolism or ovulation; multi-use with stubby bulb; oral; rectal; veterinary; and veterinary (heavy duty). The following tests shall be performed to conform to the specified requirements: retention of colorant; accuracy test; ease of resetting; temperature retention; fire cracks; and precision and bias.