Standard Test Methods for Fatty and Rosin Acids in Tall Oil Fractionation Products by Capillary Gas Chromatography

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-01-2020

Publisher

American Society for Testing and Materials

1.1These test methods cover the determination of the amounts of the individual fatty acids and rosin acids in fractionated tall oil products, using capillary gas chromatographic separation of the volatile methyl esters of these acids.

1.2Four methods for forming the methyl esters, and two methods for determining the amounts of the individual fatty acids and rosin acids are described.

1.2.1The classic method for the formation of methyl esters is through the use of diazomethane, but diazomethane is a hazardous and toxic material, and so is no longer the preferred reagent. The use of diazomethane is detailed in the Appendix. Methyl esters may be formed through the use of tetramethylammonium hydroxide (TMAH), trimethylphenylammonium hydroxide (TMPAH), or N,N-dimethylformamide dimethyl acetal (DMF-DMA).

1.2.2The two methods for determining the amount of the individual fatty acids and rosin acids are the “internal standard” method, which yields absolute values, and the “area percent” method, which yields relative values.

1.3This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Committee	D 01
DocumentType	Test Method
Pages	6
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 5974 : 2015

ASTM D 804 : 2012 : R2017	Standard Terminology Relating to Pine Chemicals, Including Tall Oil and Related Products
ASTM E 691 : 2020	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2019 : EDT 1	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2023	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2022	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM E 691 : 2009	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ASTM D 804 : 2012 : R2022	Standard Terminology Relating to Pine Chemicals, Including Tall Oil and Related Products
ASTM E 691 : 2021	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method