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Reference HD 446.1 S1:1984
Title Thermocouples - Part 1: Reference tables
Project Number 4315
Abstract/Scope This standard provides thermocouple reference tables for use in converting thermocouple voltages into their equivalent measured temperatures and vice versa - The polynominal equations from which the tables are derived have been included in the Appendix hence no tolerances are given - Any error obtained by using these equations directly will be less than one in the last place - This standard is based upon the International Practical Temperature Scale of 1968 (IPTS-68) - Temperatures are expressed in degrees Celsius (Symbol t68) - The tables which it contains are derived from experimental work carried out by the National Research Council (Canada), the National Physical Laboratory (U.K.) and the National Bureau of Standards (U.S.A.) and are not dependent upon any particular values of the secondary reference points included with IPTS-68 - However, if it is desired to calibrate a thermocouple using some of these secondary reference points, then the temperatures assigned to them in the edition of IPTS-68 current at the time the calibration is being carried out should be used


Current Stage code 6060
Current Stage code date 1984-03-09
Current Stage code deadline 1985-09-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/SC 65B
Reference Document IEC 60584-1:1977 (EQV)
Keywords Sensor; Thermocouple; Reference table
Note Superseded by EN 60584-1:1995
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1984-03-09 1985-09-01  

Implementation Dates

date of Ratification (DOR) (1) 1984-03-01
date of Availability (DAV) (2) 1984-03-09
date of Announcement (DOA) (3) 1984-09-01
date of Publication (DOP) (4) 1985-09-01
date of Withdrawal (DOW) (5) 1985-09-01


Superseded by EN 60584-1:1995
Normative reference (6)  

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.