IEC 60584-1:2013

IEC 60584-1 ®
Edition 3.0 2013-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Thermocouples –
Part 1: EMF specifications and tolerances

Couples thermoélectriques –
Partie 1: Spécifications et tolérances en matière de FEM

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IEC 60584-1 ®
Edition 3.0 2013-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Thermocouples –
Part 1: EMF specifications and tolerances

Couples thermoélectriques –
Partie 1: Spécifications et tolérances en matière de FEM

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 17.200.20 ISBN 978-2-8322-1047-5

– 2 – 60584-1 © IEC:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Terms and definitions . 7
3 Thermocouple designations . 8
4 EMF – Temperature reference functions . 9
5 Thermocouple tolerances . 14
6 Thermoelectric values at the fixed points of the ITS-90 . 15
Annex A (informative) Tables for EMF as a function of temperature . 17
Annex B (informative) Inverse polynomial functions . 57
Annex C (informative) Guidance on the selection of thermocouples . 64
Bibliography . 68

Table 1 – Thermocouple types . 9
Table 2 – Type R reference function . 10
Table 3 – Type S reference function . 11
Table 4 – Type B reference function . 11
Table 5 – Type J reference function . 11
Table 6 – Type T reference function . 12
Table 7 – Type E reference function . 12
Table 8 – Type K reference function . 13
Table 9 – Type N reference function . 13
Table 10 – Type C reference function . 14
Table 11 – Type A reference function . 14
Table 12 – Thermocouple tolerances . 15
Table 13 – EMF and Seebeck coefficients of the thermocouples at the fixed points of
the ITS-90 (EMF: upper row, Seebeck coefficient: lower row) . 16
Table A.1 – Type R: Platinum - 13 % rhodium / platinum (1 of 5) . 17
Table A.2 – Type S: Platinum-10 % rhodium / platinum (1 of 5) . 21
Table A.3 – Type B: Platinum-30 % rhodium / platinum-6 % rhodium (1 of 4) . 26
Table A.4 – Type J: Iron / copper-nickel (1 of 4) . 30
Table A.5 – Type T: Copper / copper-nickel (1 of 2) . 34
Table A.6 – Type E: Nickel-chromium / copper-nickel (1 of 3) . 36
Table A.7 – Type K: Nickel-chromium / nickel-aluminium (1 of 4) . 39
Table A.8 – Type N: Nickel-chromium-silicon / nickel-silicon (1 of 4) . 43
Table A.9 – Type C: Tungsten-5 % rhenium / tungsten-26 % rhenium (1 of 5) . 47
Table A.10 – Type A: Tungsten-5 % rhenium / tungsten-20 % rhenium (1 of 5) . 52
Table B.1 – Type R Inverse function coefficients . 58
Table B.2 – Type S Inverse function coefficients . 59
Table B.3 – Type B Inverse function coefficients . 59
Table B.4 – Type J Inverse function coefficients . 60
Table B.5 – Type T Inverse function coefficients . 60

60584-1 © IEC:2013 – 3 –
Table B.6 – Type E Inverse function coefficients . 61
Table B.7 – Type K Inverse function coefficients . 61
Table B.8 – Type N Inverse function coefficients . 62
Table B.9 – Type C Inverse function coefficients . 62
Table B.10 – Type A Inverse function coefficients . 63
Table C.1 – Recommended maximum temperature of use, t / °C . 64
max
Table C.2 – Environmental recommendations and limitations of the conductors . 66
Table C.3 – Neutron irradiation effects . 67

– 4 – 60584-1 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
THERMOCOUPLES –
Part 1: EMF specifications and tolerances

FOREWORD
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