ASTM E77 - 14

    Standard Test Method for Inspection and Verification of Thermometers

    Active Standard ASTM E77 | Developed by Subcommittee: E20.05

    Book of Standards Volume: 14.03


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    Significance and Use

    4.1 The test method described in this standard will ensure that the thermometers listed in Specifications E1 and E2251 will indicate temperatures within the maximum scale errors listed, be compatible with the apparatus, and serve the purpose for which they were designed.

    4.2 Thermometers that do not pass the visual and dimensional inspection tests may give erroneously high or low temperature readings, or may not fit into existing equipment used in ASTM methods. For accurate temperature measurements the scale readings of the thermometer should be verified as described in this test method.

    1. Scope

    1.1 This test method covers visual and dimensional inspection and test for scale accuracy to be used in the verification of liquid-in-glass thermometers as specified in Specifications E1 and E2251. However, these procedures may be applied to other liquid-in-glass thermometers.2

    Note 1: The use of NIST SP250-232 is recommended.

    1.2 Warning—Mercury has been designated by EPA and many state agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s website- http://www.epa.gov/mercury/faq.htm - for additional information. Users should be aware that selling mercury and/or mercury containing products into your state may be prohibited by state law.-

    1.3 This standard does not purport to address all of the safety problems, 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.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E1 Specification for ASTM Liquid-in-Glass Thermometers

    E344 Terminology Relating to Thermometry and Hydrometry


    ICS Code

    ICS Number Code 17.200.20 (Temperature-measuring instruments)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard

    DOI: 10.1520/E0077-14

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM E77-14, Standard Test Method for Inspection and Verification of Thermometers, ASTM International, West Conshohocken, PA, 2014, www.astm.org

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