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.</p> <p>1.2 The values of temperature in this specification are based on the International Temperature Scale of 1990 (ITS-90)<b> </b>. </p>
| 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 |