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Scope

1.1 This guide covers the nature of two commercial water triple-point cells (types A and B, see Fig. 1) and provides a method for preparing the cell to realize the water triple-point and calibrate thermometers. Tests for assuring the integrity of a qualified cell and of cells yet to be qualified are given. Precautions for handling the cell to avoid breakage are also described.

1.2 The effect of hydrostatic pressure on the temperature of a water triple-point cell is discussed.

1.3 Procedures for adjusting the observed SPRT resistance readings for the effects of self-heating and hydrostatic pressure are described in Appendixes X1 and X2.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

Water Triple Point Cells; ICS Number Code 17.200.20 (Temperature-measuring instruments)

To find similar documents by ASTM Volume:

14.03 (Temperature Measurement)

To find similar documents by classification:

17.200.20 (Temperature-measuring instruments Including thermostats Medical thermometers, see 11.040.55)

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