ASTM-F2837 Standard Test Method for Hot Compression Properties of Gasket Materials

ASTM-F2837 - 2011 R18 EDITION - CURRENT
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Standard Test Method for Hot Compression Properties of Gasket Materials
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Scope

1.1 This test method covers a means of measuring the hot compression properties of a gasket material by measuring its creep under a constant load at both room temperature and while increasing the temperature. Short term creep properties including both cold and hot creep, total creep and compression set of a gasket material can be determined.

1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

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.

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.

Significance and Use

5.1 The hot compression properties of a gasket material, including creep resistance and compression set, are a major factor with regard to the selection of a given material for use in a particular sealing application. The significance of the test method is based, in part; on the assumption that if a material exhibits too much creep at elevated temperature that it will no longer function as effectively as a seal. This assumption can only be used as a guide; however, since exact yield or failure points are difficult to define for gasket materials (which are usually viscoelastic in nature). Two or more materials can be compared to determine differences in their hot compression properties. A sample of material can be compared to an established standard or previously determined characteristics on original lots of the same material, for quality assurance purposes.

5.2 Samples are to be tested with a raised profile insert or calibration ring described in 6.3 and Fig. 1 so that the area (2042 mm2 (3.17 in.2)) remains constant during the test.

FIG. 1 Test Assembly for Determining Hot Compression

Test Assembly for Determining Hot CompressionTest Assembly for Determining Hot Compression

Keywords

cold creep; compression; compression set; creep; gasket; gasket compression; hot compression; hot creep; strain; stress; thickness change;; ICS Number Code 21.140 (Seals, glands)

To find similar documents by ASTM Volume:

09.02 (Rubber Products, Industrial - Specifications and Related Test Methods; Gaskets; Tires)

To find similar documents by classification:

21.140 (Seals, glands Seals for pipe and hose assemblies, see 23.040.80)

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Document Number

ASTM-F2837-11(2018)

Revision Level

2011 R18 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Sept. 27, 2018

Document Type

Test Method

Page Count

5 pages

Committee Number

F03.40