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ASTM D6493-05

Historical Revision

Standard Test Methods for Softening Point of Hydrocarbon Resins and Rosin Based Resins by Automated Ring-and-Ball Apparatus

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1.1 These test methods are intended for determining the softening point of hydrocarbon resins and similar materials by means of an automated ring-and-ball apparatus. Portions are similar in technical content to the automated-apparatus versions of Test Methods D 36, E 28, and ISO 4625.

1.1.1 The ring-and-ball softening point of a hydrocarbon resin may also be determined with lower precision using the manual ring-and-ball softening point procedure in Test Methods E 28.

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 method 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.


For hydrocarbon resins, softening does not take place at a definite temperature. As the temperature rises, these materials gradually change from brittle solids or very viscous liquids to less viscous liquids. For this reason, determination of the softening point must be made by a fixed, arbitrary, and closely defined method if the results obtained are to be comparable.

SDO ASTM: ASTM International
Document Number D6493
Publication Date July 1, 2005
Language en - English
Page Count 6
Revision Level 05
Supercedes
Committee D01.34
Publish Date Document Id Type View
June 1, 2011 D6493-11 Revision
July 1, 2005 D6493-05 Revision
Dec. 10, 1999 D6493-99 Revision
Dec. 1, 2022 D6493-11R22 Reaffirmation
Dec. 1, 2015 D6493-11R15 Reaffirmation
July 15, 2010 D6493-05R10 Reaffirmation