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This specification covers the classification, testing, and corresponding requirements for negative-temperature-coefficient thermistor-type sensors intended to be used for clinical laboratory temperature measurements or control, or both, within a specified range. This specification also covers the detailed requirements for ASTM designated sensors.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers the general requirements for Negative Temperature Coefficient (NTC) thermistor-type sensors intended to be used for laboratory temperature measurements or control, or both, within the range from −10 °C to 105 °C.
1.2 This specification also covers the detailed requirements for ASTM designated sensors.
1.3 This specification also covers the requirements for general purpose, Negative Temperature Coefficient (NTC) thermistor-type sensors intended for use with Digital Contact Thermometers (also known as Digital Thermometers) within the range from –50 °C to +150 °C.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 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.
1.6 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.
NIST DocumentsNIST Monograph 126 Platinum Resistance Thermometry NIST Special Publication 250-22 Platinum Resistance Thermometer Calibration NIST Technical Note 1265
Other DocumentsANSI/NCSL Z540.3-2006 (R2013) Requirements for the Calibration of Measuring and Test Equipment JCGM 100:2008
E344 Terminology Relating to Thermometry and Hydrometry
E563 Practice for Preparation and Use of an Ice-Point Bath as a Reference Temperature
E1502 Guide for Use of Fixed-Point Cells for Reference Temperatures
E1750 Guide for Use of Water Triple Point Cells
E2488 Guide for the Preparation and Evaluation of Liquid Baths Used for Temperature Calibration by Comparison
F29 Specification for Dumet Wire for Glass-to-Metal Seal Applications
ICS Number Code 17.200.20 (Temperature-measuring instruments)
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ASTM E879-20, Standard Specification for Thermistor Sensors for General Purpose and Laboratory Temperature Measurements, ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top