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ASTM D5968-04

(Test Method)

Standard Test Method for Evaluation of Corrosiveness of Diesel Engine Oil at 121°C

Standard Test Method for Evaluation of Corrosiveness of Diesel Engine Oil at 121°C

SCOPE
1.1 This test method is used to test diesel engine lubricants to determine their tendency to corrode various metals, specifically alloys of lead and copper commonly used in cam followers and bearings. Correlation with field experience has been established.
1.2 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in 5.3.1, 6.6, 6.7, 6.8, 6.9, 6.10, 6.11, 7.1.1, 7.1.2, 7.1.5, and 7.4.1.

General Information

Status
Historical
Publication Date
30-Apr-2004
ICS
75.100 - Lubricants, industrial oils and related products
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.B0.02 - Heavy Duty Engine Oils
Current Stage
Ref Project

Relations

Replaces
ASTM D5968-01 - Standard Test Method for Evaluation of Corrosiveness of Diesel Engine Oil at 121°C
Effective Date
01-May-2004
Replaced By
ASTM D5968-06 - Standard Test Method for Evaluation of Corrosiveness of Diesel Engine Oil at 121°C
Effective Date
01-Nov-2006

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ASTM D5968-04 - Standard Test Method for Evaluation of Corrosiveness of Diesel Engine Oil at 121°CASTM D5968-04 - Standard Test Method for Evaluation of Corrosiveness of Diesel Engine Oil at 121°C
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ASTM D5968-04 - Standard Test Method for Evaluation of Corrosiveness of Diesel Engine Oil at 121°C
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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.
An American National Standard
Designation: D 5968 – 04
Standard Test Method for
1
Evaluation of Corrosiveness of Diesel Engine Oil at 121°C
This standard is issued under the fixed designation D 5968; 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 (e) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
The method described in this test method is based on the gas turbine lubricant corrosion and
oxidation test described in FederalTest Method Standard 791, Method 5308. Because this test method
relates to corrosion in diesel engines rather than in gas turbines, temperatures, metal coupons, and
certain parts of the test procedure were modified to be more appropriate for heavy duty diesel engines.
The method described in this test method can be used by any properly equipped laboratory, without
2
outside assistance. However, the ASTM Test Monitoring Center (TMC) provides reference oils and
an assessment of the test results obtained on those oils by the laboratory (see Annex A1). By these
means, the laboratory will know whether their use of the test method gives results statistically similar
to those obtained by other laboratories. Furthermore, various agencies require that a laboratory utilize
the TMC services in seeking qualification of oils against specifications. For example, the U.S. Army
imposes such a requirement in connection with several Army engine lubricating oil specifications.
Accordingly, this test method is written for use by laboratories that utilize the TMC services.
Laboratories that choose not to use those services may simply ignore those portions of the test method
that refer to the TMC.
This test method may be modified by means of Information Letters issued by theTMC. In addition,
the TMC may issue supplementary memoranda related to the method (see Annex A1). For other
3
information, refer to the research report on the Cummins Bench Corrosion Test.
1. Scope responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
1.1 This test method is used to test diesel engine lubricants
bility of regulatory limitations prior to use. Specific hazard
to determine their tendency to corrode various metals, specifi-
statements are given in 5.3.1, 6.6, 6.7, 6.8, 6.9, 6.10, 6.11,
cally alloys of lead and copper commonly used in cam
7.1.1, 7.1.2, 7.1.5, and 7.4.1.
followers and bearings. Correlation with field experience has
4
been established.
2. Referenced Documents
1.2 The values stated in SI units are to be regarded as the
5
2.1 ASTM Standards:
standard.
D 130 Test Method for Detection of Copper Corrosion from
1.3 This standard does not purport to address all of the
Petroleum Products by the Copper Strip Tarnish Test
safety concerns, if any, associated with its use. It is the
D 5185 Determination of Additive Elements, Wear Metals,
and Contaminants in Used Lubricating Oils and Determi-
nation of Selected Elements in Base Oils by Inductively
1
This test method is under the jurisdiction of ASTM Committee D02 on
Coupled Plasma Atomic Emission Spectrometry (ICP-
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.B0 on Automotive Lubricants.
AES)
Current edition approved May 1, 2004. Published June 2004. Originally
E 691 Practice for Conducting an Interlaboratory Study to
approved in 1998. Last previous edition approved in 2001 as D 5968–01.
2 Determine the Precision of a Test Method
ASTM Test Monitoring Center, 6555 Penn Ave., Pittsburgh, PA 15206-4489.
(http://www.astmtmc.cmu.edu/)
3
Supporting data have been filed at ASTM International Headquarters and may
be obtained by requesting Research Report RR: D02-1322. The research report and
5
this test method are supplemented by Information Letters and Memoranda issued by For referenced ASTM standards, visit the ASTM website, www.astm.org, or
theASTM Test Monitoring Center. This edition incorporates revisions contained in contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
all information letters through No. 03–1. Users of this test method shall contact the
Standards volume information, refer to the standard’s Document Summary page on
ASTM Test Monitoring Center to obtain the most recent of these.
the ASTM website.
4
Wang, J. C., and Cusano, C. M., “Development ofABench Test to Detect Oils
Corrosive to Engine Components,” SAE Technical Paper No. 940790, 1994.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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5.1 The bromine number is useful as a measure of aliphatic unsaturation in petroleum samples. When used in conjunction with the calculation procedure described in Annex A2, it can be used to estimate the percentage of olefins in petroleum distillates boiling up to approximately 315 °C (600 °F).  
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1.1.2 Commercial olefins that are essentially mixtures of aliphatic mono-olefins and that fall within the range of 95 to 165 bromine number (see Note 1). This test method has been found suitable for such materials as commercial propylene trimer and tetramer, butene dimer, and mixed nonenes, octenes, and heptenes. This test method is not satisfactory for normal alpha-olefins.  
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5.1 The low-temperature, low-shear-rate viscosity of automatic transmission fluids, gear oils, torque and tractor fluids, and industrial and automotive hydraulic oils (see Appendix X4) are of considerable importance to the proper operation of many mechanical devices. Measurement of the viscometric properties of these oils and fluids at low temperatures is often used to specify their acceptance for service. This test method is used in a number of specifications.  
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1.3 Spectra and distribution profiles presented herein are for illustrative purposes only and are not to be construed as representing or establishing lubricant or machinery guidelines.  
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1.1 This test method covers quantitative procedures for the evaluation of the compatibility of automotive engine oils with several reference elastomers typical of those used in the sealing materials in contact with these oils. Compatibility is evaluated by determining the changes in volume, Durometer A hardness, and tensile properties when the elastomer specimens are immersed in the oil for a specified time and temperature.  
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1.4 The several reference elastomer formulations specified in this test method were chosen to be representative of those used in both heavy-duty diesel engines (detailed in Annex A1) and passenger-car spark-ignition engines (the latter are covered in Annex A2). The procedures described in this test method can, however, also be used to evaluate the compatibility of automotive engine oils with different elastomer types/formulations or different test durations and temperatures to those employed in this test method.
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1.3.1 Exception—The exception to this will be where units of references were developed by the developers of the test equipment and necessary to report the results of the test.  
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ASTM
ASTM D7922-23(Test Method)
Standard Test Method for Determination of Glycol for In-Service Engine Oils by Gas Chromatography

SIGNIFICANCE AND USE
5.1 Some glycol/antifreeze dilution of in-service engine oil is normal under typical operating conditions. However, excessive glycol dilution can lead to decreased performance, premature wear, or sudden engine failure. This test method provides a means of quantifying the level of glycol based antifreeze dilution, allowing the user to take necessary action.
SCOPE
1.1 This test method covers the determination of glycol based antifreeze for in-service engine oil by derivative headspace/gas chromatography.  
1.2 Sample is derivatized in-situ directly in a headspace sampling vial prior to vapor phase extraction and injection into a gas chromatograph.  
1.3 The chemistry of the derivatization is unique to the detection of the molecules of ethylene glycol and 1,2-propylene glycol. 1,3-propylene glycol could also be detected but is not used in any known anti-freeze at this time. Other coolant analyses are beyond the scope of this test method.  
1.4 The derivatization process does not affect glycol breakdown products such as glycolate and formate and hence the presence of these compounds in the oil will not be quantified.  
1.5 The test method concentration range is from 50 µg/g to 1000 µg/g. Lower levels are possible by method modifications. Higher levels are possible through sample dilution.  
1.6 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7 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.  
1.8 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.

  • Standard
    8 pages
    English language
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  • Standard
    8 pages
    English language
    sale 15% off