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ASTM D87-09

Current Revision

Standard Test Method for Melting Point of Petroleum Wax (Cooling Curve)

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1.1 This test method covers the determination of the melting point (cooling curve) of petroleum wax. It is unsuitable for waxes of the petrolatum group, microcrystalline waxes, or blends of such waxes with paraffin wax or scale wax.

Note 1—For additional methods used for testing petroleum waxes, see Test Method D127 and Test Method D938. Results may differ, depending on the method used. For pharmaceutical petrolatum, Test Method D127 usually is used.

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 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.

Melting point (cooling curve) is a test that is widely used by wax suppliers and consumers. it is particularly applied to petroleum waxes that are rather highly paraffinic or crystalline in nature. A plateau occurs with specimens containing appreciable amounts of hydrocarbons that crystallize at the same temperature, giving up heat of fusion, thus temporarily retarding the cooling rate. In general, petroleum waxes with large amounts of non-normal hydrocarbons or with amorphous solid forms will not exhibit a plateau.

SDO ASTM: ASTM International
Document Number D87
Publication Date Dec. 1, 2009
Language en - English
Page Count 5
Revision Level 09
Supercedes
Committee D02.10.0A
Publish Date Document Id Type View
Dec. 1, 2009 D0087-09 Revision
Nov. 1, 2007 D0087-07A Revision
Feb. 1, 2007 D0087-07 Revision
Nov. 1, 2004 D0087-04 Revision
Oct. 1, 2018 D0087-09R18 Reaffirmation
May 1, 2014 D0087-09R14 Reaffirmation
April 10, 1999 D0087-87R99 Reaffirmation