ASTM D5135-02

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

• Replaces: ASTM D5135-95 - Standard Test Method for Analysis of Styrene by Capillary Gas Chromatography
• Effective Date: 10-Jun-2002
• Referred By: ASTM D2827-19 - Standard Specification for Styrene Monomer
• Effective Date: 10-Jun-2002
• Referred By: ASTM D7504-23 - Standard Test Method for Trace Impurities in Monocyclic Aromatic Hydrocarbons by Gas Chromatography and Effective Carbon Number
• Effective Date: 10-Jun-2002

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
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.
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
the rounding-off method of Practice E 29.
E 691 Practice for Conducting an Interlaboratory Test Pro-
1.4 This standard does not purport to address all the safety
4
gram to Determine the Precision of Test Methods
concerns, if any, associated with its use. It is the responsibility
E 1510 Practice for Installing Fused Silica Open Tubular
of the user of this standard to establish appropriate safety and
5
Capillary Columns in Gas Chromatographs
health practices and determine the applicability of regulatory
2.2 Other Document
limitations prior to use. For a specific hazard statement, see
OSHA Regulations—29CFR paragraphs 1910.1000 and
Section 9. 6
1910.1200
2. Referenced Documents
3. Terminology
2.1 ASTM Standards:
3.1 See Terminology D 4790 for definitions of terms used in
D 3437 Practice for Sampling and Handling Liquid Cyclic
this test method.
2
Products
D 4307 Practice for Preparation of Liquid Blends for Use as
4. Summary of Test Method
3
Analytical Standards
4.1 In this test method, the chromatogram peak area for each
D 4790 Terminology of Aromatic Hydrocarbons and Re-
impurity is compared to the peak area of the internal standard
2
lated Chemicals
(n-heptane or other suitable known) added to the sample. From
E 29 Practice for Using Significant Digits in Test Data to
the response factors of these impurities relative to that of the
4
Determine Conformance with Specifications
internal standard and the amount of internal standard added,
E 355 Practice for Gas Chromatography Terms and Rela-
the concentration of the impurities are calculated. The styrene
5
tionships
content is obtained by subtracting the total amount of all
impurities from 100.00.
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 designed to obtain styrene purity on
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.07 on Styrene, Ethylbenzene, and C and C Aromatic
the basis of impurities normally present in styrene and may be
9 10
Hydrocarbons.
used for final product inspections and process control.
Current edition approved June 10, 2002. Published August 2002. Originally
published as D 5135 – 90. Last previous edition D 5135 – 95.
2
Annual Book of ASTM Standards, Vol 06.04.
3
Annual Book of ASTM Standards, Vol 05.02.
4 6
Annual Book of ASTM Standards, Vol 14.02. Available from U.S. Government Printing Office, Superintendent of Docu-
5
Annual Book of ASTM Standards, Vol 03.06. 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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D 5135
5.2 This test method will detect the impurities shown in 8.2 Carrier Gas—Chromatographic grade helium is recom-
Table 1, non-aromatic hydrocarbons containing ten carbons or mended (minimum purity of 99.95 mole %).
less, and others where specific impurity standards are available. 8.3 Hydrogen and Air, for FID detector.
Absolute purity cannot be determined if unknown impurities 8.4 n-Heptane, 99.0 % minimum purity, or other internal
are present. standard, such as n-octane, previously analyzed to be free of
compounds coeluting with impurities in the sample.
6. Interferen
...