ASTM D6557-18

Standard Test Method for Evaluation of Rust Preventive Characteristics of Automotive Engine Oils

SIGNIFICANCE AND USE
5.1 This bench test method was designed as a replacement for Test Method D5844. Test Method D5844 was designed to measure the ability of an engine oil to protect valve train components against rusting or corrosion under low temperature, short-trip service, and was correlated with vehicles in that type of service prior to 1978.5  
5.1.1 Correlation between these two test methods has been demonstrated for most, but not all, of the test oils evaluated.
SCOPE
1.1 This test method covers a Ball Rust Test (BRT) procedure for evaluating the anti-rust ability of fluid lubricants. The procedure is particularly suitable for the evaluation of automotive engine oils under low-temperature, acidic service conditions.  
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.  
1.2.1 Exceptions—Where there is no direct equivalent, such as the units for screw threads, national pipe threads/diameters, and tubing size.  
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. See 7.1.1 – 7.1.3 and 8.2.1.1.  
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: Historical
• Publication Date: 30-Sep-2018
• ICS: 75.100 - Lubricants, industrial oils and related products
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.B0.01 - Passenger Car Engine Oils

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6557 − 18
Standard Test Method for
Evaluation of Rust Preventive Characteristics of Automotive
1
Engine Oils
This standard is issued under the fixed designation D6557; 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.
INTRODUCTION
Portions of this test method are written for use by laboratories that make use of ASTM Test
2
Monitoring Center (TMC) services (see Annex A4 to Annex A7).
TheTMCprovidesreferenceoils,andengineeringandstatisticalservicestolaboratoriesthatdesire
to produce test results that are statistically similar to those produced by laboratories previously
calibrated by the TMC.
In general, the test purchaser decides if a calibrated test stand is to be used. Organizations such as
theAmericanChemistryCouncilrequirethatalaboratoryutilizetheTMCservicesaspartoftheirtest
registration process. In addition, the American Petroleum Institute and the Gear Lubricant Review
Committee of the Lubricant Review Institute (SAE International) require that a laboratory use the
TMC services in seeking qualification of oils against their specifications.
The advantage of using the TMC services to calibrate test stands is that the test laboratory (and
hence the test purchaser) has an assurance that the test stand was operating at the proper level of test
severity. It should also be borne in mind that results obtained in a non-calibrated test stand may not
be the same as those obtained in a test stand participating in the ASTM TMC services process.
ASTM International policy is to encourage the development of test procedures based on generic
equipment. It is recognized that there are occasions where critical/sole-source equipment has been
approved by the technical committee (surveillance panel/task force) and is required by the test
procedure. The technical committee that oversees the test procedure is encouraged to clearly identify
if the part is considered critical in the test procedure. If a part is deemed to be critical, ASTM
encouragesalternativesupplierstobegiventheopportunityforconsiderationofsupplyingthecritical
part/component providing they meet the approval process set forth by the technical committee
An alternative supplier can start the process by initiating contact with the technical committee
(current chairs shown onASTM TMC website). The supplier should advise on the details of the part
that is intended to be supplied. The technical committee will review the request and determine
feasibility of an alternative supplier for the requested replacement critical part. In the event that a
replacement critical part has been identified and proven equivalent the sole-source supplier footnote
shall be removed from the test procedure.
1. Scope*
1 1.1 This test method covers a Ball Rust Test (BRT) proce-
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of dure for evaluating the anti-rust ability of fluid lubricants. The
Subcommittee D02.B0.01 on Passenger Car Engine Oils.
procedure is particularly suitable for the evaluation of automo-
Current edition approved Oct. 1, 2018. Published October 2018. Originally
tive engine oils under low-temperature, acidic service condi-
approved in 2000. Last previous edition approved in 2013 as D6557–13. DOI:
10.1520/D6557-18. tions.
2
Until the next revision of this test method, the ASTM Test Monitoring Center
will update changes in the test method by means of information letters. Information 1.2 The values stated in SI units are to be regarded as
lettersmaybeobtainedfromtheASTMTestMonitoringCenter,6555PennAvenue,
standard. The values given in parentheses after SI units are
Pittsburgh, PA 15206-4489. This test method is supplemented by Information
providedforinformationonlyandarenotconsideredstandard.
Letters and Memoranda issued by the ASTM TMC. This edition incorporates
revisions in all Information Letters through No. 18-1.
*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

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D6557 − 18
1.2.1 Exceptions—Where there is no direct equivalent, such 3.2.1 average gray value (AGV),n—measurement of
as the units for screw threads, national pipe threads/diameters, brightnessunitsontestspecimens,indicatingthedegreeofrust
and tubing size. protection.
1.3 This standard does not purport to address all of the
3.2.2 specimen, n—acarbonsteelball,5.6mm(AISI1040).
safety concerns, if any, associated
...

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: D6557 − 13 D6557 − 18
Standard Test Method for
Evaluation of Rust Preventive Characteristics of Automotive
1
Engine Oils
This standard is issued under the fixed designation D6557; 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.
INTRODUCTION
Portions of this test method are written for use by laboratories that make use of ASTM Test
2
Monitoring Center (TMC) services (see Annex A4 to Annex A7).
The TMC provides reference oils, and engineering and statistical services to laboratories that desire
to produce test results that are statistically similar to those produced by laboratories previously
calibrated by the TMC.
In general, the test purchaser decides if a calibrated test stand is to be used. Organizations such as
the American Chemistry Council require that a laboratory utilize the TMC services as part of their test
registration process. In addition, the American Petroleum Institute and the Gear Lubricant Review
Committee of the Lubricant Review Institute (SAE International) require that a laboratory use the
TMC services in seeking qualification of oils against their specifications.
The advantage of using the TMC services to calibrate test stands is that the test laboratory (and
hence the test purchaser) has an assurance that the test stand was operating at the proper level of test
severity. It should also be borne in mind that results obtained in a non-calibrated test stand may not
be the same as those obtained in a test stand participating in the ASTM TMC services process.
ASTM International policy is to encourage the development of test procedures based on generic
equipment. It is recognized that there are occasions where critical/sole-source equipment has been
approved by the technical committee (surveillance panel/task force) and is required by the test
procedure. The technical committee that oversees the test procedure is encouraged to clearly identify
if the part is considered critical in the test procedure. If a part is deemed to be critical, ASTM
encourages alternative suppliers to be given the opportunity for consideration of supplying the critical
part/component providing they meet the approval process set forth by the technical committee
An alternative supplier can start the process by initiating contact with the technical committee
(current chairs shown on ASTM TMC website). The supplier should advise on the details of the part
that is intended to be supplied. The technical committee will review the request and determine
feasibility of an alternative supplier for the requested replacement critical part. In the event that a
replacement critical part has been identified and proven equivalent the sole-source supplier footnote
shall be removed from the test procedure.
1. Scope*
1.1 This test method covers a Ball Rust Test (BRT) procedure for evaluating the anti-rust ability of fluid lubricants. The
procedure is particularly suitable for the evaluation of automotive engine oils under low-temperature, acidic service conditions.
2
1.2 Information Letters are published occasionally by the ASTM Test Monitoring Center (TMC) to update this test method.
Copies of these letters can be obtained by writing the center.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.B0.01 on Passenger Car Engine Oils.
Current edition approved May 1, 2013Oct. 1, 2018. Published May 2013October 2018. Originally approved in 2000. Last previous edition approved in 20102013 as
D6557 – 10a.D6557 – 13. DOI: 10.1520/D6557-13.10.1520/D6557-18.
2
Until the next revision of this test method, the ASTM Test Monitoring Center will update changes in the test method by means of information letters. Information letters
may be obtained from the ASTM Test Monitoring Center, 6555 Penn Avenue, Pittsburgh, PA 15206-4489. This test method is supplemented by Information Letters and
Memoranda issued by the ASTM TMC. This edition incorporates revisions in all Information Letters through No. 07–01.18-1.
*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

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