ASTM D1120-11
(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 Test Method 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:D1120–11
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 Department of Defense.
1. Scope* 4. Apparatus (see Fig. 1)
1.1 This test method covers the determination of the equi- 4.1 Flask—A 100-mL round-bottom, short-neck, heat-
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librium boiling point of engine coolants. The equilibrium resistant glass flask having a neck with a ⁄38 standard-taper,
boilingpointindicatesthetemperatureatwhichthesamplewill female ground-glass joint and a 10-mm (0.4-in) outside diam-
starttoboilinacoolingsystemunderequilibriumconditionsat eter side-entering tube, so located as to permit the end of the
atmospheric pressure. thermometer bulb to be directly centered in the flask 6.5 mm
3
(0.26 in.) from the bottom. The flask is shown in Fig. 2.
NOTE 1—Engine coolants may also be marketed in a ready-to-use form
4.2 Condenser—The condenser shall be of the water-
(prediluted). This test procedure is applicable to diluted solutions as well
cooled, reflux, glass-tube type, having a condenser jacket 200
as to concentrates.
mm (7.9 in.) in length. The bottom end of the condenser shall
NOTE 2—The procedure for obtaining a representative test sample of a
19
coolantsolutionthatcontainsanantileakadditiveisfoundinTestMethod
have a ⁄38 standard-taper, drip-tip, male ground-glass joint.
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D1176.
4.3 Boiling Stones— Three or four silicon carbide grains,
grit No. 8 or other suitable inert chips, shall be used for each
1.2 The values stated in SI units are to be regarded as
determination. For samples exhibiting heavy foam, more
standard. The values given in parentheses are for information
boiling chips may be added.
only.
4.4 Temperature Measuring Instrument (Environmentally
1.3 This standard does not purport to address all of the
Safe Thermometer or Thermocouple)—An ASTM Partial Im-
safety concerns, if any, associated with its use. It is the
mersionThermometer,havingarangefrom−5to300°C(20to
responsibility of the user of this standard to establish appro-
580°F) and conforming to the requirements for Thermometer
priate safety and health practices and determine the applica-
2C or 2F, as prescribed in Specification E1, or some other
bility of regulatory limitations prior to use.
suitable non-mercury containing temperature measuring de-
2. Referenced Documents
vice, such as a thermocouple, capable of operating in the same
2
temperature range and having equal or better accuracy as
2.1 ASTM Standards:
D1176 Practice for Sampling and PreparingAqueous Solu- summarized in Specification E230. See Section 10, Precision
and Bias.The data presented in this paragraph is derived using
tions of Engine Coolants orAntirusts forTesting Purposes
E1 Specification for ASTM Liquid-in-Glass Thermometers mercury-in-glass thermometers only.
4.5 Heat Source— A suitable electric heating mantle shall
E230 Specification and Temperature-Electromotive Force
(EMF) Tables for Standardized Thermocouples be used, such that sufficient heat can be obtained to comply
with the heating and refluxing rates specified in Section 7.
3. Summary of Test Method
5. Sample
3.1 Sixty millilitres (two ounces) of the sample are boiled
5.1 To obtain a sample of unused concentrated coolant for
under equilibrium conditions at atmospheric pressure in a
100-mL flask. The temperature of the liquid corrected for boiling point determination, the following procedure is sug-
gested:
barometric pressure is the boiling point.
5.1.1 Allow material as received in the original container to
come to room temperature 20°C (68°F) but not below 20°C
1
This test method is under the jurisdiction ofASTM Committee D15 on Engine
minimum).
Coolants and is the direct responsibility of Subcommittee D15.03 on Physical
Properties.
Current edition approved March 1, 2011. Published March 2011. Originally
approved in 1950 as D1120–50T. Last previous edition approved in 2008 as
3
D1120–08. DOI: 10.1520/D1120-11. The short-neckflask shown in Fig. 2 can be purchased from S.G. & P. Inc., PO
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Box 2518, Freeport, TX 77541, Tel: (409)233-7491, or Ace Glass Inc., 1430
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Northwest Blvd., Vineland, NJ 08360, Tel: (800) 223-4524.
4
Standards volume information, refer to the standard’s Document Summary page on Silicon carbide grains, grit No. 8, may be obtained from Electro Minerals Co.
the ASTM website. (US) Inc. P.O. B
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D1120–08 Designation:D1120–11
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 Department of Defense.
1. Scope*
1.1 Thistestmethodcoversthedeterminationoftheequilibriumboilingpointofenginecoolants.Theequilibriumboilingpoint
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
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 Specification for ASTM Liquid-in-Glass Thermometers
E230 Specification and Temperature-Electromotive Force (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 (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
3
bulb 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—Thecondensershallbeofthewater-cooled,reflux,glass-tubetype,havingacondenserjacket200mm(7.9in.)
19
in length. The bottom end of the condenser shall have a ⁄38 standard-taper, drip-tip, male ground-glass joint.
4
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 ThermometerTemperature 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 thermocouple, capable of operating in the same temperature range and having equal or better accuracy as
summarized in Specification E230. See Section 10, Precision and Bias. The data presented in this paragraph is derived using
mercury-in-glass thermometers only.
1
This test method is under the jurisdiction ofASTM Committee D15 on Engine Coolants and is the direct responsibility of Subcommittee D15.03 on Physical Properties.
Current edition approved Oct.March 1, 2008.2011. Published November 2008.March 2011. Originally approved in 1950 as D1120–50T. Last previous edition approved
in 20042008 as D1120–94(2004).D1120–08. DOI: 10.1520/D1120-08.10.1520/D1120-11.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The short-neckflask shown in Fig. 2 can be purchased from S.G. & P. Inc., PO Box 2518, Freeport, TX 77541, Tel: (409)233-7491, orAce Glass Inc., 1430 Northwest
Blvd., Vineland, NJ 08360, Tel: (800) 223-4524.
4
Silicon carbide grains, grit No. 8, may be obtained from Electro Minerals Co. (US) Inc. P.O. Box 423 Niagara Falls, NY 14302. Produc
...
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