ASTM D1120-16
(Test Method)Standard Test Method for Boiling Point of Engine Coolants
Standard Test Method for Boiling Point of Engine Coolants
ABSTRACT
This test method establishes the standard procedures for the determination of the equilibrium boiling point of engine coolants. The equilibrium boiling point indicates the temperature at which the sample will start to boil in a cooling system under equilibrium conditions at atmospheric pressure. This method requires the use of the following apparatuses: round-bottom, short-neck, heat-resistant glass flask; water-cooled, reflux, glass-tube type condenser; grit No. 8 boiling stones of silicon carbide grains; partial immersion thermometer; and electric heating mantle as heat source. Specified amounts of the sample shall be boiled under equilibrium conditions at atmospheric pressure in the flask. The temperature of the liquid corrected for barometric pressure shall be the boiling point.
SCOPE
1.1 This test method covers the determination of the equilibrium boiling point of engine coolants. The equilibrium boiling point indicates the temperature at which the sample will start to boil in a cooling system under equilibrium conditions at atmospheric pressure.
Note 1: Engine coolants may also be marketed in a ready-to-use form (prediluted). This test procedure is applicable to diluted solutions as well as to concentrates.
Note 2: The procedure for obtaining a representative test sample of a coolant solution that contains an antileak additive is found in Practice D1176.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D1120 − 16
Standard Test Method for
1
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.
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
19
atmospheric pressure. resistant glass flask having a neck with a ⁄38 standard-taper,
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.
NOTE 2—The procedure for obtaining a representative test sample of a
(0.26 in.) from the bottom. The flask is shown in Fig. 2.
coolant solution that contains an antileak additive is found in Practice
4.2 Condenser—Thecondensershallbeofthewater-cooled,
D1176.
reflux, glass-tube type, having a condenser jacket 200 mm
1.2 The values stated in SI units are to be regarded as
(7.9in.) in length. The bottom end of the condenser shall have
standard. The values given in parentheses are for information
19
a ⁄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
E230/E230MSpecification and Temperature-Electromotive
summarized in Specification E230/E230M. See Section 10,
Force (emf) Tables for Standardized Thermocouples
Precision and Bias.
3. Summary of Test Method
4.5 HeatSource—Asuitableelectricheatingmantleshallbe
used, such that sufficient heat can be obtained to comply with
3.1 Sixty millilitres (two ounces) of the sample are boiled
the heating and refluxing rates specified in Section 7.
under equilibrium conditions at atmospheric pressure in a
5. Sample
1
This test method is under the jurisdiction ofASTM Committee D15 on Engine
5.1 To obtain a sample of unused concentrated coolant for
Coolants and Related Fluids and is the direct responsibility of Subcommittee
boiling point determination, the following procedure is sug-
D15.03 on Physical Properties.
gested:
Current edition approved April 1, 2016. Published April 2016. Originally
5.1.1 Allow material as received in the original container to
approved in 1950 as D1120–50T. Last previous edition approved in 2011 as
ɛ1
D1120–11 . DOI: 10.1520/D1120-16.
come to room temperature 20°C (68°F) but not below 20°C
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
minimum).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1.2 Shakethecontainertomixanymaterialthatmayhave
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. separated.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D1120 − 16
contents of the flask to the proper volume while maintainin
...
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.
´1
Designation: D1120 − 11 D1120 − 16
Standard Test Method for
1
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. 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
ε NOTE—Editorial corrections were made in July 2011.
1. Scope*
1.1 This test method covers the determination of the equilibrium boiling point of engine coolants. The equilibrium boiling point
indicates the temperature at which the sample will start to boil in a cooling system under equilibrium conditions at atmospheric
pressure.
NOTE 1—Engine coolants may also be marketed in a ready-to-use form (prediluted). This test procedure is applicable to diluted solutions as well as
to concentrates.
NOTE 2—The procedure for obtaining a representative test sample of a coolant solution that contains an antileak additive is found in Test Method
Practice D1176.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.3 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing Purposes
E1 Specification for ASTM Liquid-in-Glass Thermometers
E230E230/E230M Specification and Temperature-Electromotive Force (EMF)(emf) Tables for Standardized Thermocouples
3. Summary of Test Method
3.1 Sixty millilitres (two ounces) of the sample are boiled under equilibrium conditions at atmospheric pressure in a 100-mL
flask. The temperature of the liquid corrected for barometric pressure is the boiling point.
4. Apparatus (see Fig. 1)
19
4.1 Flask—A 100-mL round-bottom, short-neck, heat-resistant glass flask having a neck with a ⁄38 standard-taper, female
ground-glass joint and a 10-mm (0.4-in) outside diameter side-entering tube, so located as to permit the end of the thermometer
device to be directly centered in the flask 6.5 mm (0.26 in.) from the bottom. The flask is shown in Fig. 2.
4.2 Condenser—The condenser shall be of the water-cooled, reflux, glass-tube type, having a condenser jacket 200 mm (7.9 in.)
19
(7.9 in.) in length. The bottom end of the condenser shall have a ⁄38 standard-taper, drip-tip, male ground-glass joint.
4.3 Boiling Stones—Three or four silicon carbide grains, grit No. 8 or other suitable inert chips, shall be used for each
determination. For samples exhibiting heavy foam, more boiling chips may be added.
4.4 Temperature Measuring Instrument (Environmentally Safe Thermometer or Thermocouple)—An ASTM Partial Immersion
Thermometer, having a range from − 5 to 300°C (20 to 580°F) and conforming to the requirements for Thermometer 2C or 2F,
as prescribed in Specification E1, or some other suitable non-mercury containing temperature measuring device, such as a
1
This test method is under the jurisdiction of ASTM Committee D15 on Engine Coolants and Related Fluids and is the direct responsibility of Subcommittee D15.03 on
Physical Properties.
Current edition approved March 1, 2011April 1, 2016. Published March 2011April 2016. Originally approved in 1950 as D1120 – 50 T. Last previous edition approved
ɛ1
in 20082011 as D1120 – 08.D1120 – 11 . DOI: 10.1520/D1120-11E01.10.1520/D1120-16.
2
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D1120 − 16
FIG. 1 Boiling Point Test Apparatus
FIG. 2 Short-Neck Flask, 100 mL
thermocouple, capable of operating in the same temperature range and having equal or better accuracy as summarized in
Specification E230E230/E230M. See Section 10, Precision and Bias. Th
...
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