Since 1995 Isotech have been producing various designs of special Au/Pt, Pt/Pd, Pd/Au thermocouples for researchers. From our experience we can now offer the most popular of these, the Au/Pt thermocouple in a standard form/
All wires are 99.999+% pure ad are fully annealed according to the recommendations of McLaren. Assembly also follows his prescriptions which have never been bettered.
After final assembly and annealing the Au/Pt thermocouples will conform to IEC 62460, Edition 1 2008-07.
For the smallest uncertainties we calibrate the thermocouple at the Zinc, Aluminium and Silver Fixed Points.