BS EN 60584-1: Thermocouples – Part 1: E.M.F. specifications and tolerances
BS EN 60584-1 is an International Standard that relates to electromotive force (hereafter abbreviated as EMF) generated by the designated thermocouple types to temperature, based upon the International Temperature Scale of 1990 (ITS-90).
The reference polynomials for Types R, S, B, J, T, E, K and N are those used in the previous edition of this standard, IEC 60584-1:19951.
They were originally produced by the National Institute of Standards and Technology of the USA and published in NIST Monograph 175,1993. The major revision of this version is standardization of two kinds of tungsten-rhenium thermocouple, designated Type C and Type A. Both of them have been used in industry for a long time. Temperature versus EMF relationships for Type C and Type A are those published in the ASTM E230/E230-M12 and GOST R 8.585-2001 standards, respectively.
This edition merges two parts of the former IEC 60584 series, IEC 60584-1:1995 (Reference tables) and IEC 60584-2:1982 (Tolerances) and supersedes both standards. IEC 60584-3:2007 remains valid.