This standard BS EN 62460:2008 Temperature. Electromotive force (EMF) tables for pure-element thermocouple combinations is classified in these ICS categories:
17.200.20 Temperature-measuring instruments
25.040.40 Industrial process measurement and control
IEC 62460:2008 specifies the equations and reference tables relating temperature to EMF (electro-motive force) for Gold versus Platinum and Platinum versus Palladium thermocouples. For information and convenience of use it also provides the approximate equations for temperature as functions of EMF.