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ASTM D1386-15

Current Revision

Standard Test Method for Acid Number (Empirical) of Synthetic and Natural Waxes

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1.1 This test method covers the determination of the acid number of synthetic waxes and natural waxes. The number is obtained by direct titration of the material and indicates the amount of free acid present.

1.2 This test method, using an ethanol-xylene mixture, is applicable to all natural waxes, including carnauba. The test method is also applicable to oxidized microcrystalline waxes, oxidized Fischer-Tropsch, oxidized polyethylene, and montan esters.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.


4.1 This test method is used to determine the property of acid functionality. Acid functionality determines the utility of the wax as well as being a significant Quality Control test.

SDO ASTM: ASTM International
Document Number D1386
Publication Date Oct. 1, 2015
Language en - English
Page Count 2
Revision Level 15
Supercedes
Committee D21.02
Publish Date Document Id Type View
Oct. 1, 2015 D1386-15 Revision
May 1, 2010 D1386-10 Revision
Sept. 10, 1998 D1386-98 Revision
Not Available D1386-83R93E01 Revision
Dec. 1, 2022 D1386-15R22 Reaffirmation
Sept. 1, 2004 D1386-98R04 Reaffirmation