ASTM D5662-16
(Test Method)Standard Test Method for Determining Automotive Gear Oil Compatibility with Typical Oil Seal Elastomers
Standard Test Method for Determining Automotive Gear Oil Compatibility with Typical Oil Seal Elastomers
SIGNIFICANCE AND USE
5.1 There are several major causes of automotive lubricant-related seal failures. This test method addresses only those failures caused by excessive elastomer hardening, elongation loss, and volume swell and attempts to determine the likelihood that an oil might cause premature sealing system failures in field use. This test method may be used as a requirement of a performance specification, such as Specification D5760 and J2360.
5.2 Another major cause of seal failure is the formation of carbon, varnish, and sludge-like deposits on the seal lip. The deposit-forming characteristics of automotive gear oils are evaluated in Test Method D5704. That procedure is intended in part to evaluate the potential for oils to cause premature seal failure in field service.
SCOPE
1.1 This test method2 covers the determination of the compatibility of automotive gear oils with specific nitrile, polyacrylate, and fluoroelastomer oil seal materials.
1.2 Users of this test method should obtain Test Methods D412, D471, and D2240 and become familiar with their use before proceeding with this test method.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
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Designation: D5662 − 16
Standard Test Method for
Determining Automotive Gear Oil Compatibility with Typical
1
Oil Seal Elastomers
This standard is issued under the fixed designation D5662; 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.
1. Scope* E29Practice for Using Significant Digits in Test Data to
2 Determine Conformance with Specifications
1.1 This test method covers the determination of the
4
2.2 SAE Standard:
compatibility of automotive gear oils with specific nitrile,
J2360Lubricating Oil, Gear Multipurpose (Metric) Military
polyacrylate, and fluoroelastomer oil seal materials.
Use
1.2 Users of this test method should obtain Test Methods
D412, D471, and D2240 and become familiar with their use
3. Terminology
before proceeding with this test method.
3.1 Definitions of Terms Specific to This Standard:
1.3 The values stated in SI units are to be regarded as
3.1.1 dumbbell, n—the specific cut shape (Die C) of an
standard. No other units of measurement are included in this
elastomerasexplainedinthesectionondumbbellspecimensin
standard.
Test Methods D412.
1.4 This standard does not purport to address all of the
3.1.2 formulation, n—the specific chemical composition
safety concerns, if any, associated with its use. It is the
used in manufacturing a seal elastomer or a reference oil.
responsibility of the user of this standard to establish appro-
3.1.3 percent ultimate elongation, n—the stretch length at
priate safety and health practices and determine the applica-
rupture of an elastomer dumbbell oil-aged by running this
bility of regulatory limitations prior to use.
procedure minus the rupture stretch length of an untested
2. Referenced Documents dumbbell, all divided by rupture stretch length of the untested
3 dumbbell and then multiplied by 100.
2.1 ASTM Standards:
3.1.4 percent volume change, n—the change in volume of a
D412TestMethodsforVulcanizedRubberandThermoplas-
test specimen as explained in the procedure for change in
tic Elastomers—Tension
volume in Test Method D471.
D471Test Method for Rubber Property—Effect of Liquids
D2240Test Method for Rubber Property—Durometer Hard-
4. Summary of Test Method
ness
D5704Test Method for Evaluation of the Thermal and
4.1 Non-referenceoilsaretestedusingamodifiedversionof
Oxidative Stability of Lubricating Oils Used for Manual
Test Method D471 on specific elastomer compounds. Mea-
Transmissions and Final Drive Axles
sured quantities are percent ultimate elongation changes (fur-
D5760Specification for Performance of Manual Transmis-
ther referred to as just percent elongation changes), durometer
sion Gear Lubricants
Type A hardness changes, and percent volume changes. Ref-
erenceoilsarerunconcurrentlyinthesameoilbathtomeasure
consistency from one test to another.
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
4.2 The duration of these tests is 240 h. The reference oils
Subcommittee D02.B0.03 on Automotive Gear Lubricants & Fluids.
5
are available from theASTMTest Monitoring Center (TMC).
Current edition approved April 1, 2016. Published April 2016. Originally
The seal materials are available through a Central Parts
approved in 1995. Last previous edition approved in 2014 as D5662–14. DOI:
6
10.1520/D5662-16.
Distributor (CPD).
2
Until the next revision of this test method, the ASTM Test Monitoring Center
will update changes in this test method by means of Information Letters; these can
beobtainedfromtheASTMTestMonitoringCenter,6555PennAve.,Pittsburgh,Pa
4
15206-4489. Attention: Administrator. This edition incorporates revisions in all Available from Society of Automotive Engineers (SAE), 400 Commonwealth
Information Letters through No. 15–1. Dr., Warrendale, PA 15096-0001, http://www.sae.org.
3 5
For referenced ASTM standards, visit the ASTM website, www.astm.org, or ReferenceoilsareavailablefromtheASTMTestMonitoringCenter,6555Penn
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Ave., Pittsburgh, PA 15206-4489.
6
Standards volume information, refer to the standard’s Document Summary page on TheCentralPartsDistributorforthisprocedureisTestEngineeringInc.,12758
the ASTM website. Cimarron Path, Suite 102, San Antonio, TX 78249.
*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
---------------------- Page: 1 ----------------------
D5662 − 16
5. Significance and Use individual laboratories shall commit t
...
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: D5662 − 14 D5662 − 16
Standard Test Method for
Determining Automotive Gear Oil Compatibility with Typical
1
Oil Seal Elastomers
This standard is issued under the fixed designation D5662; 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*
2
1.1 This test method covers the determination of the compatibility of automotive gear oils with specific nitrile, polyacrylate,
and fluoroelastomer oil seal materials.
1.2 Users of this test method should obtain Test Methods D412, D471, and D2240 and become familiar with their use before
proceeding with this test method.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
2. Referenced Documents
3
2.1 ASTM Standards:
D412 Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
D471 Test Method for Rubber Property—Effect of Liquids
D2240 Test Method for Rubber Property—Durometer Hardness
D5704 Test Method for Evaluation of the Thermal and Oxidative Stability of Lubricating Oils Used for Manual Transmissions
and Final Drive Axles
D5760 Specification for Performance of Manual Transmission Gear Lubricants
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
4
2.2 SAE Standard:
J2360 Lubricating Oil, Gear Multipurpose (Metric) Military Use
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 dumbbell, n—the specific cut shape (Die C) of an elastomer as explained in the section on dumbbell specimens in Test
Methods D412.
3.1.2 formulation, n—the specific chemical composition used in manufacturing a seal elastomer or a reference oil.
3.1.3 percent ultimate elongation, n—the stretch length at rupture of an elastomer dumbbell oil-aged by running this procedure
minus the rupture stretch length of an untested dumbbell, all divided by rupture stretch length of the untested dumbbell and then
multiplied by 100.
3.1.4 percent volume change, n—the change in volume of a test specimen as explained in the procedure for change in volume
in Test Method D471.
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.B0.03 on Automotive Gear Lubricants & Fluids.
Current edition approved Oct. 1, 2014April 1, 2016. Published October 2014April 2016. Originally approved in 1995. Last previous edition approved in 20132014 as
D5662 – 13.D5662 – 14. DOI: 10.1520/D5662-14.10.1520/D5662-16.
2
Until the next revision of this test method, the ASTM Test Monitoring Center will update changes in this test method by means of Information Letters; these can be
obtained from the ASTM Test Monitoring Center, 6555 Penn Ave., Pittsburgh, Pa 15206–4489.15206-4489. Attention: Administrator. This edition incorporates revisions in
all Information Letters through No. 14–1.15–1.
3
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
*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
---------------------- Page: 1 ----------------------
D5662 − 16
4. Summary of Test Method
4.1 Non-reference oils are tested using a modified version of Test Method D471 on specific elastomer compounds. Measured
quantities are percent ultimate elongation changes (further referred to as just percent elongation changes), durometer Type A
hardness changes, and percent volume changes. Reference oils are run concurrently in the same oil bath to measure consistency
from one test to another.
5
4.2 The duration of these tests is 240 h. The reference oils are available
...
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