The Determination of the Thermodynamic Temperatures of Thermometry Fixed Points in the Range 660 °C to 1064 °C
- 1 January 1988
- journal article
- Published by IOP Publishing in Metrologia
- Vol. 25 (1) , 41-47
- https://doi.org/10.1088/0026-1394/25/1/007
Abstract
The thermodynamic temperatures of the silver, gold and copper-silver eutectic fixed points were measured with a photoelectric pyrometer relative to an aluminium point of 660.302 °C. The values obtained were (961.744 ± 0.055) °C, (1064.145 ± 0.060) °C and (779.583 ± 0.060) °C respectively. Although the final uncertainty of the copper-silver eutectic was similar to that of the other two, the effort necessary to obtain it was much greater and it is not recommended as a major reference point for use in photoelectric pyrometry.Keywords
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