ASTM E644-02

Standard Test Methods for Testing Industrial Resistance Thermometers

SCOPE
1.1 These test methods describe the principles, apparatus, and procedures for calibration and testing of industrial resistance thermometers.
1.2 These test methods cover the tests for insulation resistance, calibration, immersion error, pressure effects, thermal response time, vibration effect, mechanical shock, self-heating effect, stability, thermoelectric effect, humidity, and thermal hysteresis.
1.3 These test methods are not necessarily intended for, recommended to be performed on, or appropriate for every type of thermometer. The expected repeatability and reproducibility of the results are tabulated in Appendix X4.
1.4 These test methods, when specified in a procurement document, shall govern the method of testing the resistance thermometer.
1.5 Thermometer performance specifications, acceptance limits, and sampling methods are not covered in these test methods; they should be specified separately in the procurement document.
1.6 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. Specific precautionary statements are given in 6.3.2, 6.3.5, 8.1 and

General Information

• Status: Historical
• Publication Date: 09-Oct-2002
• ICS: 17.200.20 - Temperature-measuring instruments
• Technical Committee: E20 - Temperature Measurement
• Drafting Committee: E20.03 - Resistance Thermometers

Relations

• Replaces: ASTM E644-98 - Standard Test Methods for Testing Industrial Resistance Thermometers
• Effective Date: 10-Oct-2002
• Replaced By: ASTM E644-04 - Standard Test Methods for Testing Industrial Resistance Thermometers
• Effective Date: 01-May-2004
• Referred By: ASTM D6084/D6084M-21 - Standard Test Method for Elastic Recovery of Asphalt Materials by Ductilometer
• Effective Date: 10-Oct-2002
• Referred By: ASTM D5853-17a - Standard Test Method for Pour Point of Crude Oils
• Effective Date: 10-Oct-2002
• Referred By: ASTM D7110-21 - Standard Test Method for Determining the Viscosity-Temperature Relationship of Used and Soot-Containing Engine Oils at Low Temperatures
• Effective Date: 10-Oct-2002
• Referred By: ASTM D2162-21 - Standard Practice for Basic Calibration of Master Viscometers and Viscosity Oil Standards
• Effective Date: 10-Oct-2002
• Referred By: ASTM D70/D70M-21 - Standard Test Method for Specific Gravity and Density of Semi-Solid Asphalt Binder (Pycnometer Method)
• Effective Date: 10-Oct-2002
• Referred By: ASTM E220-19 - Standard Test Method for Calibration of Thermocouples By Comparison Techniques
• Effective Date: 10-Oct-2002
• Referred By: ASTM D113-17 - Standard Test Method for Ductility of Asphalt Materials
• Effective Date: 10-Oct-2002
• Referred By: ASTM D1754/D1754M-20 - Standard Test Method for Effects of Heat and Air on Asphaltic Materials (Thin-Film Oven Test)
• Effective Date: 10-Oct-2002
• Referred By: ASTM D7981-20 - Standard Practice for Compaction of Prismatic Asphalt Specimens by Means of the Shear Box Compactor
• Effective Date: 10-Oct-2002
• Referred By: ASTM D4957-18 - Standard Test Method for Apparent Viscosity of Asphalt Emulsion Residues and Non-Newtonian Asphalts by Vacuum Capillary Viscometer
• Effective Date: 10-Oct-2002
• Referred By: ASTM D4402/D4402M-23 - Standard Test Method for Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer
• Effective Date: 10-Oct-2002
• Referred By: ASTM D8164-21 - Standard Guide for Digital Contact Thermometers for Petroleum Products, Liquid Fuels, and Lubricant Testing
• Effective Date: 10-Oct-2002
• Referred By: ASTM E3186-19 - Standard Guide for Use and Testing of Dry-Block Temperature Calibrators
• Effective Date: 10-Oct-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 644 – 02
Standard Test Methods for
1
Testing Industrial Resistance Thermometers
This standard is issued under the fixed designation E 644; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 563 Practice for Preparation and Use of Freezing Point
3
Reference Baths
1.1 These test methods describe the principles, apparatus,
E 1137 Specification Industrial Platinum Resistance Ther-
and procedures for calibration and testing of industrial resis-
2
mometers
tance thermometers.
E 1502 Guide for Use of Freezing–Point Cells for Refer-
1.2 These test methods cover the tests for insulation resis-
2
ence Temperatures
tance, calibration, immersion error, pressure effects, thermal
2
E 1750 Guide for Use of Water Triple Point Cells
response time, vibration effect, mechanical shock, self-heating
E 1751 Guide to Temperature Electromotive Force (EMF)
effect, stability, thermoelectric effect, humidity, thermal hys-
Tables for Non-Letter Designated Thermocouple Combi-
teresis and thermal shock.
2
nations
1.3 These test methods are not necessarily intended for,
2.2 Military Standard:
recommended to be performed on, or appropriate for every
MIL-STD-202 Test Methods for Electronic and Electrical
type of thermometer. The expected repeatability and reproduc-
4
Component Parts
ibility of the results are tabulated in Appendix X4.
1.4 These test methods, when specified in a procurement
3. Terminology
document, shall govern the method of testing the resistance
3.1 Definitions:
thermometer.
3.1.1 The definitions given in Terminology E 344 shall
1.5 Thermometer performance specifications, acceptance
apply to these test methods.
limits, and sampling methods are not covered in these test
methods; they should be specified separately in the procure-
4. Significance and Use
ment document.
4.1 These test methods provide uniform methods for testing
1.6 This standard does not purport to address all of the
industrial resistance thermometers so that a given tester may
safety concerns, if any, associated with its use. It is the
expect to obtain the same value of a test result from making
responsibility of the user of this standard to establish appro-
successive measurements on the same test article within the
priate safety and health practices and determine the applica-
limits of repeatability given in Appendix X4. Independent
bility of regulatory limitations prior to use. Specific precau-
testers may also expect to obtain the same result from the
tionary statements are given in 6.3.2, 6.3.5, and 8.1.
testing of the same article within the limits of reproducibility
2. Referenced Documents given in Appendix X4.
4.2 These tests may be used to qualify platinum resistance
2.1 ASTM Standards:
thermometers for use in specific applications to meet a particu-
E 77 Test Method for the Inspection and Verification of
2 lar specification such as Specification E 1137, or to evaluate
Thermometers
relative merits of equivalent test articles supplied by one or
E 230 Temperature-Electromotive Force (EMF) Tables for
2 more manufacturers, or to determine the limits of the applica-
Standardized Thermocouples
tion of a particular design of thermometer.
E 344 Terminology Relating to Thermometry and Hydrom-
2 4.3 The expected repeatability and reproducibility of se-
etry
lected test methods are included in Appendix X4.
4.4 Some non-destructive tests described in these test meth-
1
ods may be applied to thermometers that can be subsequently
These test methods are under the jurisdiction of ASTM Committee E20 on
Temperature Measurement and are the direct responsibility of Subcommittee E20.03
on Resistance Thermometers.
3
Current edition approved October 10, 2002. Published April 2003. Originally Discontinued; see 1996 Annual Book of ASTM Standards, Vol 14.03.
4
published as E 644-78. Last previous edition E 644-98.
Available from Superintendent of Documents, U.S. Government Printing
2
Annual Book of ASTM Standards, Vol 14.03. Office, Washington, DC 20234.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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E644–02
sold or used; other destructive tests may preclude the sale or mometer is subjected to the conditions of any concurrent test
use of the test article because of damage that the test may (calibration, pressure, vibration), (2) during the test, and (3)
produce. immediately after the thermometer has returned to ambient
conditions. All measured values of insulation resistance for
PROCEDURES
each test condition shall exceed the
...