1. Scope

1.1 These test methods describe the determination of the amounts of a-pinene, B-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 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.

Note1- 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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D13 Specification for Spirits of Turpentine

D801 Test Methods for Sampling and Testing Dipentene

D802 Test Methods for Sampling and Testing Pine Oils

D804 Terminology Relating to Naval Stores, Including Tall Oil and Related Products

D3009 Test Method for Compostition of Turpentine by Gas Chromatography

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

Keywords

capillary column; dipentene; gas chromatography; pine oil; turpentine; Pine oil; Terpene products; Turpentine; Capillary gas chromatography; Composition analysis--paints/related coatings/materials; Dipentene; Gas chromatography (GC)--paints/related coatings/materials

ICS Code

ICS Number Code 87.060.30 (Solvents)

DOI: 10.1520/D6387-99

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