ASTM D6526-03

Standard Test Method for Analysis of Toluene by Capillary Column Gas Chromatography

SCOPE
1.1 This test method covers the determination of hydrocarbon impurities typically found in, and the purity of, samples containing 98 wt % and greater toluene. This test method is applicable to impurity concentrations in the range of 0.0005 to 1.6 wt %.
1.2 Monocyclic aromatic hydrocarbons containing 6 through 8 carbon atoms, cumene, 1,4-dioxane, and nonaromatic aliphatic hydrocarbons containing up to 12 carbon atoms can be detected by this test method. The nonaromatic compounds are determined as a composite.
1.3 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 E 29.
1.4 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 statements, see Section 9.

General Information

• Status: Historical
• Publication Date: 09-Jan-2003
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.01 - Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives

Relations

• Replaces: ASTM D6526-00 - Standard Test Method for Analysis of Toluene by Capillary Column Gas Chromatography
• Effective Date: 10-Jan-2003
• Replaced By: ASTM D6526-03e1 - Standard Test Method for Analysis of Toluene by Capillary Column Gas Chromatography
• Effective Date: 10-Jan-2003
• Referred By: ASTM D5917-15(2019) - Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and External Calibration
• Effective Date: 10-Jan-2003
• Referred By: ASTM D6460-19 - Standard Test Method for Determination of Rolled Erosion Control Product (RECP) Performance in Protecting Earthen Channels from Stormwater-Induced Erosion
• Effective Date: 10-Jan-2003

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 6526 – 03
Standard Test Method for
Analysis of Toluene by Capillary Column Gas
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Chromatography
This standard is issued under the fixed designation D 6526; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope * E 691 Practice for Conducting an Interlaboratory Study to
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Determine the Precision of a Test Method
1.1 This test method covers the determination of hydrocar-
E 1510 Practice for Installing Fused Silica Open Tubular
bon impurities typically found in, and the purity of, samples
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Capillary Columns in Gas Chromatographs
containing 98 wt % and greater toluene. This test method is
2.2 Other Document:
applicable to impurity concentrations in the range of 0.0005 to
OSHA Regulations, 29 CFR, paragraphs 1910.1000 and
1.6 wt %.
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1910.1200
1.2 Monocyclic aromatic hydrocarbons containing 6
through 8 carbon atoms, cumene, 1,4–dioxane, and nonaro-
3. Terminology
matic aliphatic hydrocarbons containing up to 12 carbon atoms
3.1 See Terminology D 4790 for definitions of terms used in
can be detected by this test method. The nonaromatic com-
this test method.
pounds are determined as a composite.
1.3 The following applies to all specified limits in this test
4. Summary of Test Method
method: for purposes of determining conformance with this
4.1 A portion of the sample is injected into a gas chromato-
test method, an observed value or a calculated value shall be
graph using a microlitre syringe at the specified conditions of
rounded off “to the nearest unit” in the last right-hand digit
the test method. The toluene and other components are
used in expressing the specification limit, in accordance with
separated as they are transported through the column by an
the rounding-off method of Practice E 29.
inert carrier gas. The components in the effluent are measured
1.4 This standard does not purport to address all of the
by a flame ionization detector (FID). The area of the impurity
safety concerns, if any, associated with its use. It is the
peaks and toluene are electronically integrated. The peak areas
responsibility of the user of this standard to establish appro-
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are corrected with effective carbon number (ECN) response
priate safety and health practices and determine the applica-
factors and normalized to 100.0000 %.
bility of regulatory limitations prior to use. For specific hazard
statements, see Section 9.
5. Significance and Use
5.1 This test method is suitable for determining the concen-
2. Referenced Documents
trations of known impurities in refined toluene and for use as
2.1 ASTM Standards:
an integral quality control tool where toluene is produced or
D 3437 Practice for Sampling and Handling Liquid Cyclic
2 used in manufacturing.
Products
5.2 Toluene purity is reported, but a chromatographic analy-
D 4790 Terminology of Aromatic Hydrocarbons and Re-
2 sis cannot determine absolute purity if unknown or undetected
lated Chemicals
components are present in the sample.
E 29 Practice for Using Significant Digits in Test Data to
3
Determine Conformance with Specifications
6. Interferences
E 355 Practice for Gas Chromatography Terms and Rela-
6.1 If present, nonaromatic hydrocarbons of 13 carbons or
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tionships
greater, alcohols, ethers, and other similar organic compounds
can interfere with this test method by co-eluting with the
aromatic hydrocarbons.
1
This test method is under the jurisdiction of ASTM Committee D16 on
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane, and Their
Derivatives.
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Current edition approved Jan. 10, 2003. Published March 2003. Originally Available from U.S. Government Printing Office Superintendent of Documents,
approved in 2000. Last previous edition approved in 2000 as D 6526 - 00. 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.
2 6
Annual Book of ASTM Standards, Vol 06.04. Scanlon, J. T., and Willis, D. E., “Calculation of Ionization Detector Relative
3
Annual Book of ASTM Standards, Vol 14.02. Response Factors Using the Effective Carbon Number Concept”, Journal of
4
Annual Book of ASTM Standards, Vol 03.06. Chromatographic Science, Vol 35, August, 1985, pp. 333-339.
*A Summary of Changes section appears at the end of this standard.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for th
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