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ASTM D5944

1996 Edition, June 10, 1996

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Standard Guide for Describing the General Principles for Determining the Temperature of Deflection of Plastics under Load

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Product Details:

  • Revision: 1996 Edition, June 10, 1996
  • Published Date: June 10, 1996
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: ASTM International (ASTM)
  • Page Count: 4
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

1. Scope

1.1 This guide covers procedures for determination of the temperature of deflection under load (bending stress under three-point loading) of different types of material.

1.2 This guide is identical to ISO 75-1. This guide is comparable to Test Method D 648, but neither standard should be substituted for the other. The two standards may differ with respect to test specimen dimensions, test specimen conditioning, test equipment, testing conditions, etc. The two procedures may not give the same results.

1.3 The procedures specified are suitable for assessing the behavior of different types of material at elevated temperature under load at a specified rate of temperature increase. The results obtained do not necessarily represent maximum use temperatures because, in practice, essential factors such as time, loading conditions, and nominal surface stress may differ from the test conditions.

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

1.5 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.