ASTM-D813:2019 Edition

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D813-07(2019) Standard Test Method for Rubber Deterioration—Crack Growth

Published By	Publication Date	Number of Pages
ASTM	2019	6

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Category: ASTM

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Description

ASTM D813-07-Reapproved2019

Active Standard: Standard Test Method for Rubber Deterioration—Crack Growth

ASTM D813

Scope

1.1 This test method covers the determination of crack growth of vulcanized rubber when subjected to repeated bending strain or flexing. It is particularly applicable to tests of synthetic rubber compounds which resist the initiation of cracking due to flexing when tested by Method B of Test Methods D430. Cracking initiated in these materials by small cuts or tears in service, may rapidly increase in size and progress to complete failure even though the material is extremely resistant to the original flexing-fatigue cracking. Because of this characteristic of synthetic compounds, particularly those of the SBR type, this test method in which the specimens are first artificially punctured in the flex area should be used in evaluating the fatigue-cracking properties of this class of material.

1.2 The values stated in SI units are to be regarded as the 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.

Keywords

crack growth; DeMattia (De Mattia) flexing machine; dynamic fatigue; flex fatigue; flexing; flexing fatigue; rubber products ;

ICS Code

ICS Number Code 83.060 (Rubber)

DOI: 10.1520/D0813-07R19

Additional information