• ASTM E1137/E1137M-08(2020)

ASTM E1137/E1137M-08(2020)

Standard Specification for Industrial Platinum Resistance Thermometers

ASTM International , 05/01/2020

Publisher: ASTM

File Format: PDF

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1.1This specification covers the requirements for metal-sheathed industrial platinum resistance thermometers (PRT's) suitable for direct immersion temperature measurement. It applies to PRT's with an average temperature coefficient of resistance between 0 and 100°C of 0.385 %/°C and nominal resistance at 0°C of 100 Ω or other specified value. This specification covers PRT's suitable for all or part of the temperature range −200 to 650°C. The resistance-temperature relationship and tolerances are specified as well as physical, performance, and testing requirements.

1.2The values of temperature in this specification are based on the International Temperature Scale of 1990 (ITS-90).2

1.3The values stated in inch-pound units or SI (metric) units may be regarded separately as standard. The values stated in each system are not exact equivalents, and each system shall be independent of the other.

1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM E1137/E1137M-08(2020) History

ASTM E1137/E1137M-08(2020)
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