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ASTM D5917-99

Historical Revision

Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and External Calibration

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1.1 This test method covers the determination of the total nonaromatic hydrocarbons and trace monocyclic aromatic hydrocarbons in toluene and mixed xylenes by gas chromatography. The purity of toluene or mixed xylenes can also be calculated. Calibration of the gas chromatographic system is done by the external standard calibration technique. A similar test method, using the internal standard calibration technique, is Test Method D2360.

1.2 Total aliphatic hydrocarbons containing 1 through 10 carbon atoms (methane through decanes) can be detected by this test method at concentrations ranging from 0.001 to 2.500 weight %.

1.2.1 A small amount of benzene in mixed xylenes may not be distinguished from the nonaromatics and the concentrations are determined as a composite (see 6.1).

1.3 Monocyclic aromatic hydrocarbon impurities containing 6 through 9 carbon atoms (benzene through C 9 aromatics) can be detected by this test method at individual concentrations ranging from 0.001 to 1.000 weight %.

1.4 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.

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. For specific hazard statement, see Section 9.


SDO ASTM: ASTM International
Document Number D5917
Publication Date Jan. 10, 1999
Language en - English
Page Count 6
Revision Level 99
Supercedes
Committee D16.01
Publish Date Document Id Type View
Oct. 1, 2024 D5917-24 Revision
Feb. 1, 2015 D5917-15E01 Revision
Feb. 1, 2015 D5917-15 Revision
Sept. 15, 2012 D5917-12 Revision
Jan. 1, 2009 D5917-09 Revision
Oct. 10, 2002 D5917-02 Revision
Jan. 10, 1999 D5917-99 Revision
June 1, 2019 D5917-15R19 Reaffirmation