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ASTM D3642-13(2021)

Historical Reaffirmation

Standard Test Method for Softening Point of Certain Alkali-Soluble Resins

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1.1 This test method covers the determination of the softening point of certain alkali-soluble resins having uniform plastic flow characteristics as the melting point is approached.

1.2 The resin manufacturer should specify whether or not this test method may be used for his product(s).

1.3 This test method is not suitable for styrene-maleic anhydride resins.

Note 1: For testing rosin and other resins, see Test Method E28. For testing asphalts, tars, and pitches, see Test Method D2398.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 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.


4.1 In general, with materials of this type, softening does not take place at a definite temperature. As the temperature rises, these materials gradually and imperceptibly change from brittle solids to soft, viscous liquids. For this reason, the determination of the softening point must be made by a fixed, arbitrary, and closely defined methods if the results are to be comparable.

SDO ASTM: ASTM International
Document Number D3642
Publication Date March 1, 2021
Language en - English
Page Count 3
Revision Level 13(2021)
Supercedes
Committee D21.02
Publish Date Document Id Type View
Oct. 1, 2013 D3642-13 Revision
Sept. 10, 1998 D3642-98 Revision
March 1, 2021 D3642-13R21 Reaffirmation
May 1, 2010 D3642-98R10 Reaffirmation
Sept. 1, 2004 D3642-98R04 Reaffirmation