ASTM D5135-02e1

Standard Test Method for Analysis of Styrene by Capillary Gas Chromatography

SCOPE
1.1 This test method covers the determination of the impurities typically found in styrene and uses those values to determine the purity of styrene by difference by gas chromatography. Typical impurities in commercial styrene are found in Table 1.
1.2 This test method is applicable to impurity concentrations in the range of 0.001 to 1.00 % and for styrene purities of 99 % or higher when using the internal standard procedure.
1.3 The following applies to all specified limits in this standard: for purposes of determining conformance with this standard, 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 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 hazard statement, see Section 9.

General Information

• Status: Historical
• Publication Date: 09-Jun-2002
• ICS: 71.080.15 - Aromatic hydrocarbons
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals
• Drafting Committee: D16.07 - Styrene, Ethylbenzene and C9 and C10 Aromatic Hydrocarbons

Relations

• Replaced By: ASTM D5135-07 - Standard Test Method for Analysis of Styrene by Capillary Gas Chromatography
• Effective Date: 01-Jun-2007

Standards Content (Sample)

e1
Designation: D 5135 – 02
Standard Test Method for
1
Analysis of Styrene by Capillary Gas Chromatography
This standard is issued under the fixed designation D 5135; 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
e NOTE—Research report was added editorially in September 2004.
TABLE 1 Impurities Known or Suggested to be Present in
1. Scope*
Commercial Styrene
1.1 This test method covers the determination of the impu-
Ethylbenzene
rities typically found in styrene and uses those values to
o-xylene
determine the purity of styrene by difference by gas chroma-
m-xylene
p-xylene
tography. Typical impurities in commercial styrene are found
Isopropylbenzene
in Table 1.
n-propylbenzene
1.2 This test method is applicable to impurity concentra- m-ethyltoluene
p-ethyltoluene
tions in the range of 0.001 to 1.00 % and for styrene purities of
a-methylstyrene
99 % or higher when using the internal standard procedure.
m-vinyltoluene
1.3 The following applies to all specified limits in this
p-vinyltoluene
Phenylacetylene
standard: for purposes of determining conformance with this
standard, 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
E 29 Practice for Using Significant Digits in Test Data to
the rounding-off method of Practice E 29.
Determine Conformance with Specifications
1.4 This standard does not purport to address all the safety
E 355 Practice for Gas Chromatography Terms and Rela-
concerns, if any, associated with its use. It is the responsibility
tionships
of the user of this standard to establish appropriate safety and
E 691 Practice for Conducting an Interlaboratory Study to
health practices and determine the applicability of regulatory
Determine the Precision of Test Methods
limitations prior to use. For a specific hazard statement, see
E 1510 Practice for Installing Fused Silica Open Tubular
Section 9.
Capillary Columns in Gas Chromatographs
2.2 Other Document
2. Referenced Documents
OSHA Regulations—29CFR paragraphs 1910.1000 and
2
2.1 ASTM Standards:
3
1910.1200
D 3437 Practice for Sampling and Handling Liquid Cyclic
Products
3. Terminology
D 4307 Practice for Preparation of Liquid Blends for Use as
3.1 See Terminology D 4790 for definitions of terms used in
Analytical Standards
this test method.
D 4790 Terminology of Aromatic Hydrocarbons and Re-
lated Chemicals
4. Summary of Test Method
4.1 In this test method, the chromatogram peak area for each
impurity is compared to the peak area of the internal standard
1
This test method is under the jurisdiction of ASTM Committee D16 on
(n-heptane or other suitable known) added to the sample. From
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.07 on Styrene, Ethylbenzene, and C and C Aromatic the response factors of these impurities relative to that of the
9 10
Hydrocarbons.
internal standard and the amount of internal standard added,
Current edition approved June 10, 2002. Published August 2002. Originally
the concentration of the impurities are calculated. The styrene
published as D 5135 – 90. Last previous edition D 5135 – 95.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from U.S. Government Printing Office, Superintendent of Docu-
the ASTM website. ments, 732 North Capitol St., NW, Mail Stop SDE, Washington, DC 20401.
*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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D5135–02
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content is obtained by subtracting the total amount of all tee on Analytical Reagents of the American Chemical Society,
impurities from 100.00. where such specifications are available.
8.2 Carrier Gas—Chromatographic grade helium is recom-
5. Significance and Use mended (minimum purity of 99.95 mole %).
8.3 Hydrogen and Air, for FID detector.
5.1 This test method is designed to obtain styrene purity on
8.4 n-Heptane, 99.0 % minimum purity, or other internal
the basis of impurities normally present in styrene and may be
standard, such as n-octane, previously analyzed to be free of
used for final product inspections and process control.
compounds coeluting with impurities in the sample.
5.2 This test method will detect the impurities shown in
8.5 Styrene, the highest purity available, but not less than
Table 1, non-aromatic hydrocarbons containing ten carbons or
99.7 %.
less, and others w
...