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ASTM D5768-02

Current Revision

Standard Test Method for Determination of Iodine Value of Tall Oil Fatty Acids

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1.1 This test method covers the Wijs procedure for determination of unsaturation (iodine value) of tall oil fatty acids.

1.2 Iodine value is a measure of the unsaturation of oils and fatty acids and is expressed in terms of the number of centigrams of iodine per gram of sample (weight percent of absorbed iodine).

1.3 When this test method is used to determine the iodine value of fatty acids having conjugated systems, the result is not a measure of total unsaturated, but rather is an empirical value that affords a comparison of unsaturation. Total unsaturation of conjugated systems may be measured in accordance with Test Method D 1541.

1.4 The test method described here is not reliable for tall oil fatty acids containing an appreciable quantity of rosin.

1.5 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.


SDO ASTM: ASTM International
Document Number D5768
Publication Date Dec. 10, 2002
Language en - English
Page Count 3
Revision Level 02
Supercedes
Committee D01.34
Publish Date Document Id Type View
Dec. 10, 2002 D5768-02 Revision
Jan. 1, 1995 D5768-95 Revision
Dec. 1, 2022 D5768-02R22 Reaffirmation
June 1, 2018 D5768-02R18 Reaffirmation
Dec. 1, 2014 D5768-02R14 Reaffirmation
June 1, 2010 D5768-02R10 Reaffirmation
Nov. 1, 2006 D5768-02R06 Reaffirmation