Cobalt-carbon eutectic fixed point for calibration of thermocouples (1324 ??C)

Thermocouple calibration devices from NPL

Melting-point-cell Teddington, UK — The UK’s National Physical Laboratory (NPL) now offers for sale the novel cobalt-carbon eutectic fixed point for thermocouple calibration with ultra-low uncertainties at 1324 ??C.

The melting point cell consists of a high purity graphite crucible containing an ingot of cobalt-carbon alloy constructed from cobalt and carbon each having a purity of at least 99.999%.

The cells are supplied with an NPL certificate showing the melting temperature (uncertainty ?? 0.55 ??C, k = 2) of the cell determined, traceable to ITS-90, by radiation thermometry.


For more information visit the NPL webpage at:

National Physical Laboratory
Hampton Road
Teddington, Middlesex, TW11 0LW

Tel: 020 8977 3222

Notes: Cell image courtesy NPL

Related NPL Resources: Thermocouple calibration – calibration and supply of platinum-rhodium thermocouples (0 ??C to 1600 ??C)