ASTM-D6387 › Historical Revision Information
Standard Test Methods for Composition of Turpentine and Related Terpene Products by Capillary Gas Chromatography
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Scope
1.1 These test methods describe the determination of the amounts of alpha-pinene, α-pinene, dipentene, terpene alcohols, and other terpene compounds in turpentine and related terpene products using capillary gas chromatography. The two methods for determining the amount of the individual terpene compounds are the "internal standard" method, which yields absolute values, and the "area percent" method, which yields relative values.
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 the standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1—Overall this test method gives excellent repeatability but only moderate reproducibility. This greater than normal differential is a consequence of the variety of gas chromatography (GC) columns and other variables used by participants. These variables, coupled with the complex composition of the test products, enabled some workers to separate peaks that others reported as one peak; thus, this test method gives excellent precision within a given laboratory on a given GC. When laboratory to laboratory comparison have to be made, however, it is essential that the GC operating conditions be defined closely. Subcommittee D01.34 will be working on this problem prior to the next version of this test method.
Significance and Use
Earlier methods for characterizing turpentine and related terpene products were based on physical properties, such as those in Specification D 13
Keywords
capillary column; dipentene; gas chromatography; pine oil; turpentine
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Document Number
ASTM-D6387-99(2005)
Revision Level
1999 R05 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Dec. 1, 2005
Document Type
Test Method
Page Count
5 pages
Committee Number
D01.34