ASTM E1-01

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Method 9501—Federal Test
Designation:E1–01
Method Standard No. 791b
Standard Specification for
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ASTM Thermometers
This standard is issued under the fixed designation E 1; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E 77 Test Method for Inspection and Verification of Ther-
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mometers
1.1 This specification covers liquid-in-glass thermometers
E 344 Terminology Relating to Thermometry and Hydrom-
graduated in Celsius (centigrade) or Fahrenheit degrees which
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etry
are frequently specified in methods of ASTM. The various
thermometers covered are listed in Table 1. The designation of
3. Terminology
an IP number in Table 1 indicates, where appearing, that the
3.1 Definitions—The definitions given in Terminology
thermometer specification has been jointly agreed upon by the
E 344 apply.
British Institute of Petroleum (IP) and ASTM.
3.2 Definitions of Terms Specific to This Standard:
1.2 This specification also covers adjustable-range
3.2.1 adjusting device, n—a section of the instrument used
enclosed-scale thermometers, graduated in Celsius (centigrade)
to adjust the amount of mercury in the bulb and main capillary
degrees, which are specified in methods of ASTM.
to that needed for the intended temperature interval.
1.3 The enclosed-scale thermometers are commonly called
3.2.2 bulb length, n—the distance from the bottom of the
Beckmann thermometers. They are suitable for measuring
bulb to the junction of the bulb and the stem tubing.
small temperature differences not exceeding 6 °C within a
3.2.3 contraction chamber, n—an enlargement of the cap-
larger range of temperature. The thermometers are unsuitable
illary, that will appear below the main scale or between the
for measuring Celsius- or kelvin-scale temperatures unless they
main scale and the auxiliary scale, which serves to reduce its
have been compared with standard instruments immediately
length or to prevent contraction of the liquid column into the
before use.
bulb.
1.4 An alphabetic list of the ASTM Thermometers included
3.2.4 diameter, n—the largest outside dimension of the
in this standard is given in Table 2.
glass as measured with a ring gage.
1.5 A list of ASTM Thermometers is given in Table 3 to
3.2.5 expansion chamber, n—an enlargement at the top of
facilitate selection according to temperature range, immersion,
the capillary to provide protection against breakage caused by
and scale-error requirements.
excessive gas pressure.
NOTE 1—For a listing of thermometers recommended for general
3.2.6 interval error, n—the deviation of the nominal value
laboratory use, the Scientific Apparatus Makers Assn. Specifications for
of a temperature interval from its true value; either for the total
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General Purpose Glass Laboratory Thermometers may be consulted.
range (total interval) or for a part of the range (partial interval).
NOTE 2—It has been found by experience that these ASTM Thermom-
3.2.7 saddle, n—the bottom support of the enclosed scale.
eters, although developed in general for specific tests, may also be found
3.2.8 setting temperature, n—the temperature that yields a
suitable for other applications, thus precluding the need for new thermom-
eter specifications differing in only minor features.
reading of zero on the main scale for a given adjustment of the
amount of mercury in the bulb and main capillary.
2. Referenced Documents
3.2.9 top of the thermometer, n—the top of the finished
2.1 ASTM Standards:
instrument.
3.2.10 total length, n—the distance from the bottom of the
bulb to the top of the finished thermometer, including any
special finish at the top.
3.2.11 Other descriptions of terms shall be in accordance
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This specification is under the jurisdiction of ASTM Committee E20 on
with the Terminology section of Test Method E 77.
Temperature Measurement and is the direct responsibility of Subcommittee E20.05
on Liquid-in-Glass Thermometers and Hydrometers.
Current edition approved Oct. 10, 2001. Published December 2001. Originally
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published as E 1–39T. Last previous edition E 1–98 .
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Available from SAMA Group of Assocs., 225 Reinekers, Ste. 625, Alexandria,
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VA 23314. Annual Book of ASTM Standards, Vol 14.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
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