ASTM International - ASTM D7216-05

Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers

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Organization: ASTM International
Publication Date: 1 November 2005
Status: historical
Page Count: 9
ICS Code (Lubricants, industrial oils and related products): 75.100
scope:

1.1 This test method covers quantitative procedures for the evaluation of the compatibility of automotive engine oils with four 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 D 412 (tensile properties), D 471 (effect of rubber immersion in liquids), D 2240 (Durometer hardness), and D 5662 (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 may be subjected to static or dynamic loads, or both, and they may 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 four reference elastomer formulations specified in this test method were chosen to be representative of those used in heavy-duty diesel engines. 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.

Note 2

In such cases, the precision and bias statement in Section 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 the standard. The values given in parentheses are for information only.

1.6 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.

1.7 This test method is arranged as follows:

Scope

Section

Referenced Documents
Terminology
Summary of Test Method
Significance and Use
Apparatus
Reference Materials
Procedure
Calculations
TMC 1006 Reference Oil Testing
Report
Precision and Bias
Keywords
Formulations and Physical Properties for the Reference Elastomers

Document History

September 1, 2020
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
July 1, 2020
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
July 1, 2019
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
April 1, 2018
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
October 1, 2017
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
April 1, 2015
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
June 15, 2013
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
May 1, 2010
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
April 15, 2009
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
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...
December 1, 2008
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
1.1 This test method covers quantitative procedures for the evaluation of the compatibility of automotive engine oils with five reference elastomers typical of those used in the sealing materials in...
May 1, 2008
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
1.1 This test method covers quantitative procedures for the evaluation of the compatibility of automotive engine oils with five reference elastomers typical of those used in the sealing materials in...
ASTM D7216-05
November 1, 2005
Standard Test Method for Determining Automotive Engine Oil Compatibility with Typical Seal Elastomers
1.1 This test method covers quantitative procedures for the evaluation of the compatibility of automotive engine oils with four reference elastomers typical of those used in the sealing materials in...
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