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    ASTM D5135 - 21

    Standard Test Method for Analysis of Styrene by Capillary Gas Chromatography

    Active Standard ASTM D5135 | Developed by Subcommittee: D16.07

    Book of Standards Volume: 06.04

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    Significance and Use

    5.1 This test method is designed to obtain styrene purity on the basis of impurities normally present in styrene and may be used for final product inspections and process control.

    5.2 This test method will detect the impurities shown in Table 1, non-aromatic hydrocarbons containing ten carbons or less, and others where specific impurity standards are available. Absolute purity cannot be determined if unknown impurities are present.

    1. 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 up to 1 %.

    1.2.1 The limit of detection is 0.0003 mass % and the limit of quantitation is 0.0010 mass %.

    1.2.2 LOD and LOQ were calculated using data from ILS results for n-propylbenzene in Table 3.

    1.3 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.

    1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see Section 9.

    1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D3437 Practice for Sampling and Handling Liquid Cyclic Products

    D4307 Practice for Preparation of Liquid Blends for Use as Analytical Standards

    D4790 Terminology of Aromatic Hydrocarbons and Related Chemicals

    D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E355 Practice for Gas Chromatography Terms and Relationships

    E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

    E1510 Practice for Installing Fused Silica Open Tubular Capillary Columns in Gas Chromatographs

    ICS Code

    ICS Number Code 71.080.15 (Aromatic hydrocarbons)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D5135-21

    Citation Format

    ASTM D5135-21, Standard Test Method for Analysis of Styrene by Capillary Gas Chromatography, ASTM International, West Conshohocken, PA, 2021, www.astm.org

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