ASTM D2570-09
(Test Method)Standard Test Method for Simulated Service Corrosion Testing of Engine Coolants
Standard Test Method for Simulated Service Corrosion Testing of Engine Coolants
SIGNIFICANCE AND USE
This test method, by a closer approach to engine cooling system conditions, provides better evaluation and selective screening of engine coolants than is possible from glassware testing (Test Method D1384). The improvement is achieved by controlled circulation of the coolant, by the use of automotive cooling system components, and by a greater ratio of metal surface area to coolant volume.
Although this test method provides improved discrimination, it cannot conclusively predict satisfactory corrosion inhibition and service life. If greater assurance of satisfactory performance is desired, it should be obtained from full-scale engine tests (Test Method D2758) and from field testing in actual service (Practice D2847).
Significance and interpretation of the test and its limitations are discussed further in Appendix X1.
If this test method is used as a qualification test for Specification D3306 and Specification D4985, the recommended components listed in Section 5 shall be used. If it is not being used for such qualification purposes, then suitable substitution components may be used, if agreed upon between the contracting parties.
SCOPE
1.1 This test method evaluates the effect of a circulating engine coolant on metal test specimens and automotive cooling system components under controlled, essentially isothermal laboratory conditions.
1.2 This test method specifies test material, cooling system components, type of coolant, and coolant flow conditions that are considered typical of current automotive use.
1.3 The values stated in foot-pound-second units are to be regarded as the standard. The values given in parentheses (SI units) are approximate equivalents for information only.
1.4 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. Specific precautionary statements are given in Section 6.
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Designation:D2570–09
Standard Test Method for
1
Simulated Service Corrosion Testing of Engine Coolants
This standard is issued under the fixed designation D2570; 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.
1. Scope D4985 Specification for Low Silicate Ethylene Glycol Base
Engine Coolant for Heavy Duty Engines Requiring a
1.1 This test method evaluates the effect of a circulating
Pre-Charge of Supplemental Coolant Additive (SCA)
enginecoolantonmetaltestspecimensandautomotivecooling
3
2.2 SAE Standard:
system components under controlled, essentially isothermal
SAE J20e Standard for Coolant System Hoses
laboratory conditions.
2.3 ASTM Adjuncts:
1.2 This test method specifies test material, cooling system
Coolant reservoir (1 drawing)
components, type of coolant, and coolant flow conditions that
Framework for test equipment (3 drawings and B/M)
are considered typical of current automotive use.
1.3 The values stated in foot-pound-second units are to be
3. Summary of Test Method
regarded as the standard. The values given in parentheses (SI
3.1 An engine coolant is circulated for 1064 h at 190°F
units) are approximate equivalents for information only.
(88°C) in a flow loop consisting of a metal reservoir, an
1.4 This standard does not purport to address all of the
automotivecoolantpump,anautomotiveradiator,andconnect-
safety concerns, if any, associated with its use. It is the
ing rubber hoses. Test specimens representative of engine
responsibility of the user of this standard to establish appro-
cooling system metals are mounted inside the reservoir, which
priate safety and health practices and determine the applica-
simulates an engine cylinder block. At the end of the test
bility of regulatory limitations prior to use. Specific precau-
period, the corrosion-inhibiting properties of the coolant are
tionary statements are given in Section 6.
determined by measuring the mass losses of the test specimens
2. Referenced Documents and by visual examination of the interior surfaces of the
2
components.
2.1 ASTM Standards:
D1121 Test Method for ReserveAlkalinity of Engine Cool-
4. Significance and Use
ants and Antirusts
4.1 This test method, by a closer approach to engine cooling
D1176 Practice for Sampling and Preparing Aqueous Solu-
system conditions, provides better evaluation and selective
tions of Engine Coolants orAntirusts for Testing Purposes
screening of engine coolants than is possible from glassware
D1193 Specification for Reagent Water
testing (Test Method D1384).The improvement is achieved by
D1287 Test Method for pH of Engine Coolants and Anti-
controlled circulation of the coolant, by the use of automotive
rusts
cooling system components, and by a greater ratio of metal
D1384 Test Method for Corrosion Test for Engine Coolants
surface area to coolant volume.
in Glassware
4.2 Although this test method provides improved discrimi-
D2758 Test Method for Engine Coolants by Engine Dyna-
nation, it cannot conclusively predict satisfactory corrosion
mometer
inhibition and service life. If greater assurance of satisfactory
D2847 Practice for Testing Engine Coolants in Car and
performance is desired, it should be obtained from full-scale
Light Truck Service
engine tests (Test Method D2758) and from field testing in
D3306 Specification for Glycol Base Engine Coolant for
actual service (Practice D2847).
Automobile and Light-Duty Service
4.3 Significance and interpretation of the test and its limi-
tations are discussed further in Appendix X1.
1
This test method is under the jurisdiction ofASTM Committee D15 on Engine
4.4 If this test method is used as a qualification test for
Coolants and is the direct responsibility of Subcommittee D15.09 on Simulated
Specification D3306 and Specification D4985, the recom-
Service Tests.
mendedcomponentslistedinSection5shallbeused.Ifitisnot
Current edition approved Nov. 1, 2009. Published December 2009. Originally
being used for such qualification purposes, then suitable
approved in 1966. Last previous edition approved in 2008 as D2570 - 08. DOI:
10.1520/D2570-09.
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
3
Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers, 400 Commonwealth Dr.,
the ASTM website. Warrendale, PA 15096.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D2570–09
subs
...
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:D2570–08 Designation:D2570–09
Standard Test Method for
1
Simulated Service Corrosion Testing of Engine Coolants
This standard is issued under the fixed designation D2570; 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.
1. Scope
1.1 This test method evaluates the effect of a circulating engine coolant on metal test specimens and automotive cooling system
components under controlled, essentially isothermal laboratory conditions.
1.2 This test method specifies test material, cooling system components, type of coolant, and coolant flow conditions that are
considered typical of current automotive use.
1.3 The values stated in foot-pound-second units are to be regarded as the standard. The values given in parentheses (SI units)
are approximate equivalents for information only.
1.4 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. Specific precautionary statements are given in Section 6.
2. Referenced Documents
2
2.1 ASTM Standards:
D1121 Test Method for Reserve Alkalinity of Engine Coolants and Antirusts
D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing Purposes D1177
D1177 Test Method for Freezing Point of Aqueous Engine Coolants
D1193 Specification for Reagent Water
D1287 Test Method for pH of Engine Coolants and Antirusts
D1384 Test Method for Corrosion Test for Engine Coolants in Glassware
D2758 Test Method for Engine Coolants by Engine Dynamometer
D2847 Practice for Testing Engine Coolants in Car and Light Truck Service
D3306 Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service D3321
D3321 Test Method for Use of the Refractometer for Field Test Determination of the Freezing Point of Aqueous Engine
Coolants
D4985 Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge
of Supplemental Coolant Additive (SCA)
D6210 Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines D6660
D6660 Test Method for Freezing Point of Aqueous Ethylene Glycol Base Engine Coolants by Automatic Phase Transition
Method
3
2.2 SAE Standard:
SAE J20e Standard for Coolant System Hoses
2.3 ASTM Adjuncts:
Coolant reservoir (1 drawing)
Framework for test equipment (3 drawings and B/M)
3. Summary of Test Method
3.1 An engine coolant is circulated for 1064 h at 190°F (88°C) in a flow loop consisting of a metal reservoir, an automotive
1
This test method is under the jurisdiction of ASTM Committee D15 on Engine Coolants and is the direct responsibility of Subcommittee D15.09 on Simulated Service
Tests.
´1
Current edition approved Oct. 1, 2008. Published December 2008. Originally approved in 1966. Last previous edition approved in 2002 as D2570-96(2002) . DOI:
10.1520/D2570-08.
Current edition approved Nov. 1, 2009. Published December 2009. Originally approved in 1966. Last previous edition approved in 2008 as D2570 - 08. DOI:
10.1520/D2570-09.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Society of Automotive Engineers, 400 Commonwealth Dr., Warrendale, PA 15096.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D2570–09
coolantpump,anautomotiveradiator,andconnectingrubberhoses.Testspecimensrepresentativeofenginecoolingsystemmetals
are mounted inside the reservoir, which simulates an engine cylinder block.At the end of the test period, the corrosion-inhibiting
properties of the coolant are determined by measuring the mass losses of the test specimens and by visual examination of the
interior surfaces of the components.
4. Significance and Use
4.1 This test method, by a closer approach to engine cooling system conditions, provides better evaluation and selective
screening of engine coolants than is possible from glassware testing (Test Me
...
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