ASTM D2809-21

Standard Test Method for Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With Engine Coolants

SIGNIFICANCE AND USE
4.1 This test method can be used to distinguish between coolants that contribute to cavitation corrosion and erosion-corrosion of aluminum automotive water pumps and those that do not. It is not intended that a particular rating number, as determined from this test, will be equivalent to a certain number of miles in a vehicle test; however, limited correlation between bench and field service tests has been observed with single-phase coolants. Field tests under severe operating conditions should be conducted as the final test if the actual effect of the coolant on cavitation corrosion and erosion-corrosion is to be appraised. It is also possible, with proper control of the test variables, to determine the effect of pump design, materials of construction, and pump operating conditions on cavitation corrosion and erosion-corrosion damage.
SCOPE
1.1 This test method covers the evaluation of the cavitation corrosion and erosion-corrosion characteristics of aluminum automotive water pumps with coolants.  
Note 1: During the development of this test method, it was found that results obtained when testing two-phase coolants did not correlate with results from field tests. Therefore, the test method cannot be recommended as being a significant test for determining cavitation effects of two-phase coolants.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are given in 5.2.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Oct-2021
• ICS: 23.080 - Pumps
• Technical Committee: D15 - Engine Coolants and Related Fluids
• Drafting Committee: D15.09 - Simulated Service Tests

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D2809 − 21
Standard Test Method for
Cavitation Corrosion and Erosion-Corrosion Characteristics
1
of Aluminum Pumps With Engine Coolants
This standard is issued under the fixed designation D2809; 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 Determine the Precision of a Test Method
3
2.2 ASTM Adjunct:
1.1 This test method covers the evaluation of the cavitation
Pump test stand (7 drawings and Bill of Materials)
corrosion and erosion-corrosion characteristics of aluminum
automotive water pumps with coolants.
3. Summary of Test Method
NOTE 1—During the development of this test method, it was found that
3.1 This test method consists of pumping an aqueous
results obtained when testing two-phase coolants did not correlate with
coolant solution at 113 °C (235 °F) through a pressurized
resultsfromfieldtests.Therefore,thetestmethodcannotberecommended
as being a significant test for determining cavitation effects of two-phase 103 kPa (15 psig) simulated automotive coolant system (Note
coolants.
2).An aluminum automotive water pump, driven at 4600 r/min
by an electric motor, is used to pump the solution and to serve
1.2 The values stated in SI units are to be regarded as
as the object specimen in evaluating the cavitation erosion-
standard. The values given in parentheses after SI units are
corrosion effect of the coolant under test. The pump is
provided for information only and are not considered standard.
examined to determine the extent of cavitation erosion-
1.3 This standard does not purport to address all of the
corrosion damage and is rated according to the system given in
safety concerns, if any, associated with its use. It is the
Table 1. Photographs of typical eroded pumps after testing
responsibility of the user of this standard to establish appro-
appear in the Appendix.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. NOTE 2—Tests run at other than 113 °C (235 °F) might show more or
less cavitation depending upon the coolant formulation.
Specific warning statements are given in 5.2.
1.4 This international standard was developed in accor-
4. Significance and Use
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the 4.1 This test method can be used to distinguish between
coolants that contribute to cavitation corrosion and erosion-
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical corrosion of aluminum automotive water pumps and those that
do not. It is not intended that a particular rating number, as
Barriers to Trade (TBT) Committee.
determined from this test, will be equivalent to a certain
2. Referenced Documents number of miles in a vehicle test; however, limited correlation
2
between bench and field service tests has been observed with
2.1 ASTM Standards:
single-phase coolants. Field tests under severe operating con-
D1176 Practice for Sampling and Preparing Aqueous Solu-
ditions should be conducted as the final test if the actual effect
tions of Engine Coolants orAntirusts forTesting Purposes
of the coolant on cavitation corrosion and erosion-corrosion is
E177 Practice for Use of the Terms Precision and Bias in
to be appraised. It is also possible, with proper control of the
ASTM Test Methods
testvariables,todeterminetheeffectofpumpdesign,materials
E691 Practice for Conducting an Interlaboratory Study to
of construction, and pump operating conditions on cavitation
corrosion and erosion-corrosion damage.
1
This test method is under the jurisdiction ofASTM Committee D15 on Engine
5. Apparatus
Coolants and Related Fluids and is the direct responsibility of Subcommittee
3
D15.09 on Simulated Service Tests.
5.1 PumpTestStand—Detaileddrawingsareavailable. The
Current edition approved Nov. 1, 2021. Published December 2021. Originally
copper, brass, and bronze flow circuit is illustrated in Fig. 1.
approved in 1969 as D2809–69T. Last previous edition approved in 2017 as
D2809-09 (2017). DOI: 10.1520/D2809-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Detailed drawings of this apparatus and accompanying table of parts are
Standards volume information, refer to the standard’s Document Summary page on available from AS
...

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.
Designation: D2809 − 09 (Reapproved 2017) D2809 − 21
Standard Test Method for
Cavitation Corrosion and Erosion-Corrosion Characteristics
1
of Aluminum Pumps With Engine Coolants
This standard is issued under the fixed designation D2809; 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 covers the evaluation of the cavitation corrosion and erosion-corrosion characteristics of aluminum
automotive water pumps with coolants.
NOTE 1—During the development of this test method, it was found that results obtained when testing two-phase coolants did not correlate with results
from field tests. Therefore, the test method cannot be recommended as being a significant test for determining cavitation effects of two-phase coolants.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.after
SI units are provided for information only and are not considered standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific warning statements are given in 5.2.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing Purposes
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3
2.2 ASTM Adjunct:
Pump test stand (7 drawings and Bill of Materials)
3. Summary of Test Method
3.1 This test method consists of pumping an aqueous coolant solution at 113°C (235°F)113 °C (235 °F) through a pressurized
103-kPa (15-psig)103 kPa (15 psig) simulated automotive coolant system (Note 2). An aluminum automotive water pump, driven
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 D15.09 on
Simulated Service Tests.
Current edition approved April 1, 2017Nov. 1, 2021. Published April 2017December 2021. Originally approved in 1969 as D2809–69T. Last previous edition approved
in 20092017 as D2809-09. -09 (2017). DOI: 10.1520/D2809-09R17.10.1520/D2809-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
DetailDetailed drawings of this apparatus and accompanying table of parts are available from ASTM International Headquarters. Order Adjunct No. ADJD2809. Original
adjunct produced in 1985.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2809 − 21
at 4600 r/min by an electric motor, is used to pump the solution and to serve as the object specimen in evaluating the cavitation
erosion-corrosion effect of the coolant under test. The pump is examined to determine the extent of cavitation erosion-corrosion
damage and is rated according to the system given in Table 1. Photographs of typical eroded pumps after testing appear in the
Appendix.
NOTE 2—Tests run at other than 113 °C (235 °F) might show more or less cavitation depending upon the coolant formulation.
4. Significance and Use
4.1 This test method can be used to distinguish between coolants that contribute to cavitation corrosion and erosion-corrosion of
aluminum automotive water pumps and those that do not. It is not intended that a particular rating number, as determined from
this test, will be equivalent to a certain number of miles in a vehicle test; however, limited correlation between bench and field
servi
...