ASTM D1120-08
(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 D 1176.
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:D1120–08
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 ( Fig. 1)
1.1 This test method covers the determination of the equi- 4.1 Flask—A 100-mL round-bottom, short-neck, heat-
19
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.
4
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 Thermometer—AnASTMPartialImmersionThermom-
1.3 This standard does not purport to address all of the
eter, having a range from−5 to 300°C (20 to 580°F) and
safety concerns, if any, associated with its use. It is the
conforming to the requirements for Thermometer 2C or 2F, as
responsibility of the user of this standard to establish appro-
prescribed in Specification E1, or some other suitable non-
priate safety and health practices and determine the applica-
mercury containing temperature measuring device, such as a
bility of regulatory limitations prior to use.
thermocouple, capable of operating in the same temperature
2. Referenced Documents
range and having equal or better accuracy. See Section 10,
2
Precision and Bias. The data presented in this paragraph is
2.1 ASTM Standards:
D1176 Practice for Sampling and PreparingAqueous Solu- derived using mercury-in-glass thermometers only.
4.5 Heat Source— A suitable electric heating mantle shall
tions of Engine Coolants orAntirusts forTesting Purposes
E1 Specification for ASTM Liquid-in-Glass Thermometers 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 Oct. 1, 2008. Published November 2008. Originally
approved in 1950 as D1120–50T. Last previous edition approved in 2004 as
3
D1120–94(2004). DOI: 10.1520/D1120-08. 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. Box 423 Niagara Falls, NY 14302. Product No: 1242-0008-3-8RA.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700
...
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:D1120–94 (Reapproved 2004) Designation: D 1120 – 08
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:
D1176Test Method Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing
Purposes
E1 Specification for ASTM Liquid-in-Glass Thermometers
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 ( 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 Thermometer—AnASTMPartialImmersionThermometer,havingarangefrom−5to+300°C(20to580°F)andconforming
to the requirements for Thermometer 2C or 2F, as prescribed in Specification E1. —AnASTM 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. See Section 10, Precision and Bias. The data
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.
´1
Current edition approved May 1, 2004. Published June 2004. Originally approved in 1950 as D1120–50T. Last previous edition approved in 1998 as D1120–94(1998) .
Current edition approved Oct. 1, 2008. Published November 2008. Originally approved in 1950 as D1120–50T. Last previous edition approved in 2004 as
D1120–94(2004).
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. Product No: 1242-0008-3-8RA.
*ASummary of Changes section appears at the end of t
...
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