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ASTM D2319-98(2003)

Historical Reaffirmation

Standard Test Method for Softening Point of Pitch (Cube-in-Air Method)

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1.1 This test method covers the determination of the softening point above 176°F (80°C) of pitch. Test Method D 3104 gives comparable results.

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

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


Pitch does not go through a solid-liquid phase change when heated and therefore does not have a true melting point. As the temperature is raised, pitch softens and becomes less viscous. The softening point is arbitrarily defined and must be determined by a closely controlled method that must be carefully followed if test results are to be reproducible.

This test method is useful in determining the consistency of pitch as one element in establishing the uniformity of shipments and sources of supply.

SDO ASTM: ASTM International
Document Number D2319
Publication Date Nov. 1, 2003
Language en - English
Page Count 3
Revision Level 98(2003)
Supercedes
Committee D02.05
Publish Date Document Id Type View
Nov. 10, 1998 D2319-98 Revision
Nov. 1, 2003 D2319-98R03 Reaffirmation