ASTM-E1502:2003 Edition

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E1502-98(2003)e1 Standard Guide for Use of Freezing-Point Cells for Reference Temperatures

Published By	Publication Date	Number of Pages
ASTM	2003	10

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Categories: 17.200.20 - Temperature-measuring instruments, ASTM

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Description

ASTM E1502-98-e1-Reapproved2003

Historical Standard: Standard Guide for Use of Freezing-Point Cells for Reference Temperatures

ASTM E1502

Scope

1.1 This guide describes the essential features of freezing-point cells and auxiliary apparatus, and the techniques required to realize freezing points in the temperature range from 29 to 1085 °C.

1.2 Detailed design and construction are not addressed in this guide.

1.3 This guide is intended to describe good practice and establish uniform procedures for the realization of freezing points.

1.4 This guide emphasizes principles. The emphasis on principles is intended to aid the user in evaluating cells, in improving technique for using cells, and in establishing procedures for specific applications.

1.5 For the purposes of this guide, the use of freezing-point cells for the accurate calibration of thermometers is restricted to immersion-type thermometers that, when inserted into the reentrant well of the cell, (1) indicate the temperature only of the isothermal region of the well, and (2) do not significantly alter the temperature of the isothermal region of the well by heat transfer.

Keywords

calibration; cryoscopic; constant; fixed point; freeze; freezing curve; reezing plateau; freezing point; freezing-point cell; freexing range; ITS-90: precision; qualification; recalescence; reference material; reference temperature; resistance thermometer; thermocouple; thermometer; uncertainty; undercool

ICS Code

ICS Number Code 17.200.20 (Temperature-measuring instruments)

DOI: 10.1520/E1502-98R03E01

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Guide Significance and Use FIG. 1 FIG. 2
3	Principles TABLE 1 TABLE 2
4	FIG. 3 FIG. 4
7	Test Procedure
8	Documentation
9	Precision and Bias
10	Keywords

Additional information

Standard Title	E1502-98(2003)e1 Standard Guide for Use of Freezing-Point Cells for Reference Temperatures
Published Code	ASTM
Publication Date	2003
Pages Count	10
ICS Codes	17.200.20 - Temperature-measuring instruments