ASTM-D6584 Historical Revision Information
Standard Test Method for Determination of Total Monoglyceride, Total Diglyceride, Total Triglyceride, and Free and Total Glycerin in B-100 Biodiesel Methyl Esters by Gas Chromatography

ASTM-D6584 - 2010A(E1) EDITION - SUPERSEDED
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Standard Test Method for Determination of Total Monoglycerides, Total Diglycerides, Total Triglycerides, and Free and Total Glycerin in B-100 Biodiesel Methyl Esters by Gas Chromatography
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Scope

1.1 This test method covers the quantitative determination of total monoglyceride, total diglyceride, total triglyceride, and free and total glycerin in B-100 methyl esters by gas chromatography. The range of quantitation for monoglyceride is 0.100 to 1.000 mass %, for diglyceride is 0.050 to 0.500 mass %, and for triglyceride is 0.050 to 0.500 mass %. The range of quantitation for free glycerin is 0.005 to 0.05 mass % and for total glycerin from 0.05 to 0.5 mass %. This procedure is not applicable to vegetable oil methyl esters obtained from lauric oils, such as coconut oil and palm kernel oil.

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

Significance and Use

Free and bonded glycerin content reflects the quality of biodiesel. A high content of free glycerin may cause problems during storage, or in the fuel system, due to separation of the glycerin. A high total glycerin content can lead to injector fouling and may also contribute to the formation of deposits at injection nozzles, pistons, and valves.

Keywords

biodiesel; free glycerin; gas chromatography; methyl esters; total glycerin; Biodiesel methyl esters; Diesel engine fuel oils; Gas chromatography (GC)--petroleum products; Glycerin content; Methyl esters; ICS Number Code 75.160.20 (Liquid fuels)

To find similar documents by ASTM Volume:

05.03 (Petroleum Products and Lubricants (III): D6138 - D6971)

To find similar documents by classification:

75.160.20 (Liquid fuels Including gasoline, diesel, kerosene, etc.)

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Document Number

ASTM-D6584-10ae1

Revision Level

2010A(E1) EDITION

Status

Superseded

Modification Type

Editorially changed

Publication Date

March 1, 2011

Document Type

Test Method

Page Count

9 pages

Committee Number

D02.04.0L