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ASTM D648-00a

Historical Revision

Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position

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1.1 This test method covers the determination of the temperature at which an arbitrary deformation occurs when specimens are subjected to an arbitrary set of testing conditions.

1.2 This test method applies to molded and sheet materials available in thicknesses of 3 mm ( 1/8 in.) or greater and which are rigid at normal temperature.

Note 1—Sheet stock less than 3 mm (0.125 in.) but more than 1 mm (0.040 in.) in thickness may be tested by use of a composite sample having a minimum thickness of 3 mm. The laminae must be of uniform stress distribution. One type of composite specimen has been prepared by cementing the ends of the laminae together and then smoothing the edges with sandpaper. The direction of loading shall be perpendicular to the edges of the individual laminae.

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

1.4 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.

Note 2—The test method described as a Method B of this test method, and test methods Ae and Be of ISO 75-1 and ISO 75-2, 1993 are technically equivalent.


SDO ASTM: ASTM International
Document Number D648
Publication Date Aug. 10, 2001
Language en - English
Page Count 12
Revision Level 00a
Supercedes
Committee D20.30
Publish Date Document Id Type View
April 1, 2018 D0648-18 Revision
April 1, 2016 D0648-16 Revision
March 1, 2007 D0648-07 Revision
March 15, 2006 D0648-06 Revision
July 1, 2004 D0648-04 Revision
Aug. 10, 2001 D0648-01 Revision
Aug. 10, 2001 D0648-00A Revision