ASTM D1120-11e1

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D1120 − 11
StandardTest Method for
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Boiling Point of Engine Coolants
This standard is issued under the fixed designation D1120; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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.
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ε NOTE—Editorial corrections were made in July 2011.
1. Scope* 100-mL flask. The temperature of the liquid corrected for
barometric pressure is the boiling point.
1.1 This test method covers the determination of the equi-
librium boiling point of engine coolants. The equilibrium
4. Apparatus (see Fig. 1)
boilingpointindicatesthetemperatureatwhichthesamplewill
4.1 Flask—A 100-mL round-bottom, short-neck, heat-
starttoboilinacoolingsystemunderequilibriumconditionsat
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resistant glass flask having a neck with a ⁄38 standard-taper,
atmospheric pressure.
female ground-glass joint and a 10-mm (0.4-in) outside diam-
NOTE 1—Engine coolants may also be marketed in a ready-to-use form
eter side-entering tube, so located as to permit the end of the
(prediluted). This test procedure is applicable to diluted solutions as well
thermometer device to be directly centered in the flask 6.5 mm
as to concentrates.
(0.26 in.) from the bottom. The flask is shown in Fig. 2.
NOTE 2—The procedure for obtaining a representative test sample of a
coolantsolutionthatcontainsanantileakadditiveisfoundinTestMethod
4.2 Condenser—Thecondensershallbeofthewater-cooled,
D1176.
reflux, glass-tube type, having a condenser jacket 200 mm (7.9
1.2 The values stated in SI units are to be regarded as
in.) in length. The bottom end of the condenser shall have a
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standard. The values given in parentheses are for information
⁄38 standard-taper, drip-tip, male ground-glass joint.
only.
4.3 Boiling Stones— Three or four silicon carbide grains,
1.3 This standard does not purport to address all of the
grit No. 8 or other suitable inert chips, shall be used for each
safety concerns, if any, associated with its use. It is the
determination. For samples exhibiting heavy foam, more
responsibility of the user of this standard to establish appro-
boiling chips may be added.
priate safety and health practices and determine the applica-
4.4 Temperature Measuring Instrument (Environmentally
bility of regulatory limitations prior to use.
Safe Thermometer or Thermocouple)—An ASTM Partial Im-
2. Referenced Documents mersionThermometer,havingarangefrom−5to300°C(20to
2 580°F) and conforming to the requirements for Thermometer
2.1 ASTM Standards:
2C or 2F, as prescribed in Specification E1, or some other
D1176Practice for Sampling and Preparing Aqueous Solu-
suitable non-mercury containing temperature measuring
tionsofEngineCoolantsorAntirustsforTestingPurposes
device, such as a thermocouple, capable of operating in the
E1Specification for ASTM Liquid-in-Glass Thermometers
same temperature range and having equal or better accuracy as
E230Specification and Temperature-Electromotive Force
summarized in Specification E230. See Section 10, Precision
(EMF) Tables for Standardized Thermocouples
and Bias.The data presented in this paragraph is derived using
3. Summary of Test Method
mercury-in-glass thermometers only.
3.1 Sixty millilitres (two ounces) of the sample are boiled
4.5 HeatSource—Asuitableelectricheatingmantleshallbe
under equilibrium conditions at atmospheric pressure in a
used, such that sufficient heat can be obtained to comply with
the heating and refluxing rates specified in Section 7.
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This test method is under the jurisdiction ofASTM Committee D15 on Engine
5. Sample
Coolants and Related Fluids and is the direct responsibility of Subcommittee
D15.03 on Physical Properties.
5.1 To obtain a sample of unused concentrated coolant for
Current edition approved March 1, 2011. Published March 2011. Originally
boiling point determination, the following procedure is sug-
approved in 1950 as D1120–50T. Last previous edition approved in 2008 as
D1120–08. DOI: 10.1520/D1120-11E01.
gested:
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1.1 Allow material as received in the original container to
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
come to room temperature 20°C (68°F) but not below 20°C
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. minimum).
*A Summary of Changes section appears at the end of this standard
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