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ASTM E1137-97

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Standard Specification for Industrial Platinum Resistance Thermometers

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1.1 This 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 [omega] 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.

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


SDO ASTM: ASTM International
Document Number E1137
Publication Date Nov. 10, 1997
Language en - English
Page Count 6
Revision Level 97
Supercedes
Committee E20.03
Publish Date Document Id Type View
Nov. 10, 1997 E1137-97 Revision