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Significance and Use
4.1 These test methods provide uniform methods for testing industrial resistance thermometers so that a given tester may expect to obtain the same value of a test result from making successive measurements on the same test article within the limits of repeatability given in . Independent testers may also expect to obtain the same result from the testing of the same article within the limits of reproducibility given in .
4.2 These tests may be used to qualify platinum resistance thermometers for use in specific applications to meet a particular specification such as Specification , or to evaluate relative merits of equivalent test articles supplied by one or more manufacturers, or to determine the limits of the application of a particular design of thermometer.
4.3 The expected repeatability and reproducibility of selected test methods are included in .
4.4 Some non-destructive tests described in these test methods may be applied to thermometers that can be subsequently sold or used; other destructive tests may preclude the sale or use of the test article because of damage that the test may produce.
1.1 These test methods cover 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, thermal hysteresis, thermal shock, and end seal integrity.
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 .
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in , , , , and
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E1 Specification for ASTM Liquid-in-Glass Thermometers
E77 Test Method for Inspection and Verification of Thermometers
E230/E230M Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples
E344 Terminology Relating to Thermometry and Hydrometry
E563 Practice for Preparation and Use of an Ice-Point Bath as a Reference Temperature
E1137/E1137M Specification for Industrial Platinum Resistance Thermometers
E1502 Guide for Use of Fixed-Point Cells for Reference Temperatures
E1750 Guide for Use of Water Triple Point Cells
E1751/E1751M Guide for Temperature Electromotive Force (emf) Tables for Non-Letter Designated Thermocouple Combinations
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
Military StandardMIL-STD-202 Test Methods for Electronic and Electrical Component Parts
ICS Number Code 17.200.20 (Temperature-measuring instruments)
UNSPSC Code 41112211(Resistance thermometers)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM E644-11(2019), Standard Test Methods for Testing Industrial Resistance Thermometers, ASTM International, West Conshohocken, PA, 2019, www.astm.orgBack to Top