ASTM E77-14
(Test Method)Standard Test Method for Inspection and Verification of Thermometers
Standard Test Method for Inspection and Verification of Thermometers
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.
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.
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Designation:E77 −14
Standard Test Method for
1
Inspection and Verification of Thermometers
ThisstandardisissuedunderthefixeddesignationE77;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope E2251Specification for Liquid-in-Glass ASTM Thermom-
eters with Low-Hazard Precision Liquids
1.1 This test method covers visual and dimensional inspec-
tion and test for scale accuracy to be used in the verification of
3. Terminology
liquid-in-glass thermometers as specified in Specifications E1
3.1 Definitions:
andE2251.However,theseproceduresmaybeappliedtoother
3.1.1 The definitions given in Terminology E344 apply.
2
liquid-in-glass thermometers.
Some that are considered essential to this standard are given
2
NOTE 1—The use of NIST SP250-23 is recommended.
below.
3.1.2 calibration, n—of a thermometer or thermometric
1.2 Warning—Mercury has been designated by EPA and
system, the set of operations that establish, under specified
many state agencies as a hazardous material that can cause
conditions, the relationship between the values of a thermo-
central nervous system, kidney and liver damage. Mercury, or
metric quantity indicated by a thermometer or thermometric
its vapor, may be hazardous to health and corrosive to
system and the corresponding values of temperature realized
materials.Cautionshouldbetakenwhenhandlingmercuryand
by standards.
mercury containing products. See the applicable product Ma-
3.1.2.1 Discussion—(1) The result of a calibration permits
terialSafetyDataSheet(MSDS)fordetailsandEPA’swebsite-
either the assignment of values of temperature to indicated
http://www.epa.gov/mercury/faq.htm - for additional informa-
values of thermometric quantity or determination of correc-
tion. Users should be aware that selling mercury and/or
tions with respect to indications. (2) A calibration may also
mercury containing products into your state may be prohibited
determine other metrological properties such as the effect of
by state law.-
influence quantities. (3) The result of a calibration may be
1.3 This standard does not purport to address all of the
communicatedinadocumentsuchasacalibrationcertificateor
safety problems, if any, associated with its use. It is the
acalibrationreport.(4)Thetermcalibrationhasalsobeenused
responsibility of the user of this standard to establish appro-
to refer to the result of the operations, to representations of the
priate safety and health practices and determine the applica-
result, and to the actual relationship between values of the
bility of regulatory limitations prior to use.
thermometric quantity and temperature.
3.1.3 complete-immersion thermometer, n— a liquid-in-
2. Referenced Documents
glass thermometer, not specified in ASTM documents, de-
3
2.1 ASTM Standards:
signed to indicate temperature correctly when the entire
E1Specification for ASTM Liquid-in-Glass Thermometers
thermometer is exposed to the temperature being measured.
E344Terminology Relating to Thermometry and Hydrom-
3.1.4 partial-immersion thermometer, n— a liquid-in-glass
etry
thermometer designed to indicate temperature correctly when
the bulb and a specified part of the stem are exposed to the
temperature being measured.
1
This test method is under the jurisdiction of ASTM Committee E20 on
Temperature Measurement and is the direct responsibility of Subcommittee E20.05
3.1.5 total-immersion thermometer, n—a liquid-in-glass
on Liquid-in-Glass Thermometers and Hydrometers.
thermometer designed to indicate temperature correctly when
Current edition approved May 1, 2014. Published September 2014. Originally
just that portion of the thermometer containing the liquid is
approved in 1949. Last previous edition approved in 2007 as E77–07. DOI:
10.1520/E0077-14. exposed to the temperature being measured.
2
“Liquid-in-GlassThermometer Calibration Service,” NISTSpecial Publication
3.2 Definitions of Terms Specific to This Standard:
250-23, 1988, Superintendent of Documents, U.S. Government Printing Office,
Washington, DC 20402-9325. 3.2.1 referencepoint,n—atemperatureatwhichathermom-
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
eter is checked for changes in the bulb volume.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3.2.2 verification, n—the process of testing a thermometer
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. for compliance with specifications.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959.
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E77 − 07 E77 − 14
Standard Test Method for
1
Inspection and Verification of Thermometers
This standard is issued under the fixed designation E77; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This test method covers visual and dimensional inspection, test for permanency of pigment, test for bulb stability, inspection
and test for scale accuracy to be used in the verification of liquid-in-glass thermometers as specified in SpecificationSpecifications
2
E1 and E2251. However, these procedures may be applied to other liquid-in-glass thermometers.
2
NOTE 1—The use of NIST SP250-23 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
3
2.1 ASTM Standards:
E1 Specification for ASTM Liquid-in-Glass Thermometers
E344 Terminology Relating to Thermometry and Hydrometry
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
3. Terminology
3.1 Definitions:
3.1.1 The definitions given in Terminology E344 apply. Some that are considered essential to this standard are given below.
3.1.2 calibration, n—of a thermometer or thermometric system, the set of operations that establish, under specified conditions,
the relationship between the values of a thermometric quantity indicated by a thermometer or thermometric system and the
corresponding values of temperature realized by standards.
1
This test method is under the jurisdiction of ASTM Committee E20 on Temperature Measurement and is the direct responsibility of Subcommittee E20.05 on
Liquid-in-Glass Thermometers and Hydrometers.
Current edition approved Dec. 1, 2007May 1, 2014. Published January 2008September 2014. Originally approved in 1949. Last previous edition approved in 20032007
as E77 – 98E77 – 07.(2003). DOI: 10.1520/E0077-07.10.1520/E0077-14.
2
“Liquid-in-Glass Thermometer Calibration Service,” NIST Special Publication 250-23, 1988, Superintendent of Documents, U.S. Government Printing Office,
Washington, DC 20402-9325.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3.1.2.1 Discussion—
(1) The result of a calibration permits either the assignment of values of temperature to indicated values of thermometric quantity
or determination of corrections with respect to indications. (2) A calibration may also determine other metrological properties such
as the effect of influence quantities. (3) The result of a calibration may be communicated in a document such as a calibration
certificate or a calibration report. (4) The term calibration has also been used to refer to the result of the operations, to
representations of the result, and to the actual relationship between values of the thermometric quantity and temperature.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E77 − 14
3.1.3 complete-immersion thermometer, n— a liquid-in-glass thermometer, not specified in ASTM documents, designed to
indicate temperature correctly when the entire thermometer is exposed to the temperature being measured.
3.1.4 partial-immersion thermometer, n— a liquid-in-glass thermometer designed to
...
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