ASTM D6526-03e1

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

SIGNIFICANCE AND USE
This test method is suitable for determining the concentrations of known impurities in refined toluene and for use as an integral quality control tool where toluene is produced or used in manufacturing.
Toluene purity is reported, but a chromatographic analysis cannot determine absolute purity if unknown or undetected components are present in the sample.
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
• ICS: 71.040.50 - Physicochemical methods of analysis
• ICS: 71.080.15 - Aromatic hydrocarbons
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.01 - Benzene, Toluene, Xylenes, Cyclohexane and Their Derivatives

Relations

• Replaces: ASTM D6526-03 - Standard Test Method for Analysis of Toluene by Capillary Column Gas Chromatography
• Effective Date: 10-Jan-2003
• Replaced By: ASTM D6526-10 - Standard Test Method for Analysis of Toluene by Capillary Column Gas Chromatography
• Effective Date: 01-Jun-2010
• 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 superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
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Designation:D6526–03
Standard Test Method for
Analysis of Toluene by Capillary Column Gas
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Chromatography
This standard is issued under the fixed designation D6526; 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 (´) indicates an editorial change since the last revision or reapproval.
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´ NOTE—Editorial change was made in 14.1.2 in June 2003.
1. Scope* D4790 TerminologyofAromaticHydrocarbonsandRelated
Chemicals
1.1 This test method covers the determination of hydrocar-
E29 Practice for Using Significant Digits in Test Data to
bon impurities typically found in, and the purity of, samples
Determine Conformance with Specifications
containing 98 wt % and greater toluene. This test method is
E355 Practice for Gas Chromatography Terms and Rela-
applicable to impurity concentrations in the range of 0.0005 to
tionships
1.6 wt %.
E691 Practice for Conducting an Interlaboratory Study to
1.2 Monocyclic aromatic hydrocarbons containing 6
Determine the Precision of a Test Method
through 8 carbon atoms, cumene, 1,4–dioxane, and nonaro-
E1510 Practice for Installing Fused Silica Open Tubular
matic aliphatic hydrocarbons containing up to 12 carbon atoms
Capillary Columns in Gas Chromatographs
can be detected by this test method. The nonaromatic com-
2.2 Other Document:
pounds are determined as a composite.
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
1.3 The following applies to all specified limits in this test
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1910.1200
method: for purposes of determining conformance with this
test method, an observed value or a calculated value shall be
3. Terminology
rounded off “to the nearest unit” in the last right-hand digit
3.1 See Terminology D4790 for definitions of terms used in
used in expressing the specification limit, in accordance with
this test method.
the rounding-off method of Practice E29.
1.4 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
4.1 Aportion of the sample is injected into a gas chromato-
responsibility of the user of this standard to establish appro-
graph using a microlitre syringe at the specified conditions of
priate safety and health practices and determine the applica-
the test method. The toluene and other components are
bility of regulatory limitations prior to use. For specific hazard
separated as they are transported through the column by an
statements, see Section 9.
inert carrier gas. The components in the effluent are measured
by a flame ionization detector (FID). The area of the impurity
2. Referenced Documents
2 peaks and toluene are electronically integrated. The peak areas
2.1 ASTM Standards:
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are corrected with effective carbon number (ECN) response
D3437 Practice for Sampling and Handling Liquid Cyclic
factors and normalized to 100.0000 %.
Products
5. Significance and Use
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This test method is under the jurisdiction of ASTM Committee D16 on
5.1 This test method is suitable for determining the concen-
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
trations of known impurities in refined toluene and for use as
Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their
Derivatives.
Current edition approved Jan. 10, 2003. Published March 2003. Originally
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approved in 2000. Last previous edition approved in 2000 as D6526 - 00. DOI: AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
10.1520/D6526-03E01. 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.access.gpo.gov.
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contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Scanlon, J. T., and Willis, D. E., “Calculation of Ionization Detector Relative
Standards volume information, refer to the standard’s Document Summary page on Response Factors Using the Effective Carbon Number Concept,” Journal of
the ASTM website. Chromatographic Science, Vol 35, August, 1985, pp. 333-339.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D6526–03
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an integral quality control tool where toluene is produced or theAmerican Chemical Society, where such specifications are
used in manufacturing. available, unless otherwise indicated. Other grades may be
used, provided it is first ascertained that the reagent is of
5.2 Toluenepurityisreported,butachromatographicanaly-
sufficiently high purity to permit its use without lessening the
sis cannot determine absolute pu
...