ASTM D6563-05e1

Standard Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography

SIGNIFICANCE AND USE
This test method was primarily developed to determine benzene, toluene, and xylenes in chemical intermediate and solvent streams such as reformate, BTX extracts, pyrolysis gasoline, hydrogenated pyrolysis gasoline, crude benzene, crude ethylbenzene, commercial toluene, and light blending aromatic feedstocks. This test method may not detect all components and there may be unknown components that would be assigned inappropriate response factors and thus, the results may not be absolute.
The relative distribution of C8 aromatics is useful for determining conformance to p-xylene feedstock specifications.
SCOPE
1.1 This test method covers the determination of the total nonaromatic hydrocarbons, benzene, toluene, ethylbenzene, xylenes, and total C9  + aromatic hydrocarbons in BTX concentrates by capillary column gas chromatography. This test method is applicable to materials with a final boiling point below 215°C.
1.2 This test method may also be used to determine the relative distribution of the individual C8 aromatic hydrocarbon isomers in mixed xylenes.
1.3 Individual components can be determined from 0.01 to 90 %.
1.4 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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 a specific precautionary statement, see Section 9.

General Information

• Status: Historical
• Publication Date: 30-Jun-2005
• 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 D6563-05 - Standard Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography
• Effective Date: 01-Jul-2005
• Replaced By: ASTM D6563-05(2010)e1 - Standard Test Method for Benzene, Toluene, Xylene (BTX) Concentrates Analysis by Gas Chromatography
• Effective Date: 15-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: 01-Jul-2005

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:D6563–05
Standard Test Method for
Benzene, Toluene, Xylene (BTX) Concentrates Analysis by
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Gas Chromatography
This standard is issued under the fixed designation D6563; 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 corrections were made in Table 1 and 13.3 in February 2010.
1. Scope* Procedures for Aromatic Hydrocarbons and Related Ma-
terials
1.1 This test method covers the determination of the total
E29 Practice for Using Significant Digits in Test Data to
nonaromatic hydrocarbons, benzene, toluene, ethylbenzene,
Determine Conformance with Specifications
xylenes, and total C + aromatic hydrocarbons in BTX con-
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E355 Practice for Gas Chromatography Terms and Rela-
centrates by capillary column gas chromatography. This test
tionships
method is applicable to materials with a final boiling point
E691 Practice for Conducting an Interlaboratory Study to
below 215°C.
Determine the Precision of a Test Method
1.2 This test method may also be used to determine the
E1510 Practice for Installing Fused Silica Open Tubular
relative distribution of the individual C aromatic hydrocarbon
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Capillary Columns in Gas Chromatographs
isomers in mixed xylenes.
2.2 Other Documents:
1.3 Individual components can be determined from 0.01 to
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
90 %.
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1910.1200
1.4 In determining the conformance of the test results using
this method to applicable specifications, results shall be
3. Terminology
rounded off in accordance with the rounding-off method of
3.1 Definitions of Terms Specific to This Standard:
Practice E29.
3.1.1 extracted reformate, n—An aromatic concentrate ob-
1.5 The values stated in SI units are to be regarded as
tained by solvent extraction of reformate.
standard. No other units of measurement are included in this
3.1.2 reformate, n—The product of a catalytic process that
standard.
increases the concentration of aromatic hydrocarbons.
1.6 This standard does not purport to address all of the
3.1.3 pyrolysis gasoline, n—Depentanized by-product re-
safety concerns, if any, associated with its use. It is the
covered from ethylene manufacture.
responsibility of the user of this standard to establish appro-
3.1.4 synthetic blend, n—Blend of reagent hydrocarbons
priate safety and health practices and determine the applica-
that simulate a process product.
bility of regulatory limitations prior to use. For a specific
3.1.5 hydrogenated pyrolysis gasoline, n—Pyrolysis gaso-
precautionary statement, see Section 9.
line that has been treated with hydrogen to reduce the olefins
2. Referenced Documents content.
2 3.1.6 crude ethylbenzene, n—Product produced from the
2.1 ASTM Standards:
reaction of impure fluid cat cracking, (FCC) ethylene and
D3437 Practice for Sampling and Handling Liquid Cyclic
benzene.
Products
3.1.6.1 Discussion—It typically contains greater than 40 %
D6809 Guide for Quality Control and Quality Assurance
of ethylbenzene and benzene.
3.1.7 light blending aromatics feedstock, n—Light aromat-
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This test method is under the jurisdiction of ASTM Committee D16 on ics fraction (with high amounts of benzene and toluene)
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
typically recovered from the isomerization of a p-xylene or
Subcommittee D16.01 on Benzene, Toluene, Xylenes, Cyclohexane and Their
m-xylene depleted C aromatics stream.
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Derivatives.
3.1.8 mixed xylenes, n—a mixture of C aromatic hydrocar-
Current edition approved July 1, 2005. Published August 2005. Originally
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approved in 2000. Last previous edition approved in 2000 as D6463 – 00. DOI:
bon isomers including ethylbenzene, but excluding stryene.
10.1520/D6563-05E01.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
*A Summary of Changes section appears at the end of this standard.
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D6563–05
TABLE 1 Instrument Parameters
4. Summary of Test Method
Column 50 or 60 m by 0.25 mm ID bonded
4.1 The specimen to be analyzed is injected into a gas
polyethylene glycol-fused silica capillary,
chromatographequippedwithaflamei
...