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ASTM E220-86(1996)e1

Historical Revision

Standard Test Method for Calibration of Thermocouples By Comparison Techniques

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1.1 This test method covers the techniques of thermocouple calibration based upon comparisons of thermocouple indications with those of a reference thermometer, different from methods involving the use of fixed points. The precise evaluation of the electromotive force (emf)-temperature relation of a thermocouple is accomplished by determining its emf output at each of a series of measured temperatures. Calibrations are covered over temperature ranges appropriate to the individual types of thermocouples within an over-all range from about -180 to 1700°C (-290 to 2660°F).

1.2 In general, the test method is applicable to bare wire thermocouples or sheathed thermocouples. The latter may require special care to control thermal conduction losses.


SDO ASTM: ASTM International
Document Number E220
Publication Date Nov. 10, 1996
Language en - English
Page Count 12
Revision Level 86(1996)e1
Supercedes
Committee E20.04
Publish Date Document Id Type View
Sept. 1, 2019 E0220-19 Revision
Nov. 1, 2013 E0220-13 Revision
Nov. 1, 2007 E0220-07A Revision
May 1, 2007 E0220-07E01 Revision
May 1, 2007 E0220-07 Revision
May 10, 2002 E0220-02 Revision
Nov. 10, 1996 E0220-86R96E01 Revision