ASTM D7216-18
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers

Standard No.
ASTM D7216-18
Release Date
2018
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM D7216-19
Latest
ASTM D7216-23
Scope
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. 1.2 Effective sealing action requires that the physical properties of elastomers used for any seal have a high level of resistance to the liquid or oil in which they are immersed. When such a high level of resistance exists, the elastomer is said to be compatible with the liquid or oil. NOTE 1—The user of this test method should be proficient in the use of Test Methods D412 (tensile properties), D471 (effect of rubber immersion in liquids), D2240 (Durometer hardness), and D5662 (gear oil compatibility with typical oil seal elastomers), all of which are involved in the execution of the operations of this test method. 1.3 This test method provides a preliminary or first order evaluation of oil/elastomer compatibility only. Because seals might be subjected to static or dynamic loads, or both, and they can operate over a range of conditions, a complete evaluation of the potential sealing performance of any elastomer-oil combination in any service condition usually requires tests additional to those described in this test method. 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/ 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.B0.07 on Development and Surveillance of Bench Tests Methods. Current edition approved April 1, 2018. Published April 2018. Originally approved in 2005. Last previous edition approved in 2017 as D7216 – 17. DOI: 10.1520/D7216-18. 2 Until the next revision of this test method, the ASTM Test Monitoring Center updates changes in the test method by means of information letters. Information letters can be obtained from the ASTM Test Monitoring Center, 6555 Penn Avenue, Pittsburgh, PA 15206. (www.astmtmc.cmu.edu) Attention: Administrator. This edition incorporates revisions in all information letters through No. 17-4. *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 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. 1 formulations or different test durations and temperatures to those employed in this test method. NOTE 2—In such cases, the precision and bias statement in Section 12 does not apply. In addition to agreeing acceptable limits of precision, where relevant, the user and supplier should also agree: (1) test temperatures and immersion times to be used; (2) the formulations and typical properties of the elastomers; and (3) the sourcing and quality control of the elastomer sheets. NOTE 3—The TMC may also issue Information Letters on this matter. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This test method is arranged as follows: Section Scope 1 Referenced Documents 2 Terminology 3 Summary of Test Method 4 Significance and Use 5 Apparatus 6 Reference Materials 7 Procedure 8 Calculations 9 TMC 1006-1 Reference Oil 10 Report 11 Precision and Bias 12 Keywords 13 Formulations and Physical Properties for Reference Elastomers Typically Used in Heavy-Duty Diesel Engines Annex A1 Test Procedure for Reference Elastomers Typically Used in SparkIgnition Engines Annex A2 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.

ASTM D7216-18 Referenced Document

  • ASTM D1193 Standard Specification for Reagent Water
  • ASTM D1566 Standard Terminology Relating to Rubber*2021-11-01 Update
  • ASTM D2240 Standard Test Method for Properties of Rubber &8212; Durometer Hardness*2024-04-21 Update
  • ASTM D297 Standard Test Methods for Rubber Products-Chemical Analysis
  • ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers8212;Tension
  • ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*2023-07-01 Update
  • ASTM D4485 Standard Specification for Performance of Active API Service Category Engine Oils*2022-09-01 Update
  • ASTM D471 Standard Test Method for Rubber Property-Effect of Liquids
  • ASTM D5662 Standard Test Method for Determining Automotive Gear Oil Compatability with Typical Oil Seal Elastomers
  • ASTM E178 Standard Practice for Dealing With Outlying Observations
  • ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
  • SAE J2643 Standard Reference Elastomers (SREs) for Characterizing the Effect of Liquids on Vulcanized Rubbers*2023-05-10 Update

ASTM D7216-18 history

  • 2023 ASTM D7216-23 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2022 ASTM D7216-22 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2020 ASTM D7216-20a Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2020 ASTM D7216-20 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2019 ASTM D7216-19 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2018 ASTM D7216-18 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2017 ASTM D7216-17 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2015 ASTM D7216-15 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2013 ASTM D7216-13 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2010 ASTM D7216-10 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2009 ASTM D7216-09 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2008 ASTM D7216-08a Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2008 ASTM D7216-08 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
  • 2005 ASTM D7216-05 Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers



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