ASTM D2712-18

    Standard Test Method for Determination of Hydrocarbon Impurities in High Purity Propylene by Gas Chromatography

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    1. Scope

    1.1 This test method is used for the determination of hydrocarbon impurities in propylene (propene) material of 97 % by mass or greater purity (concentrates). These impurities are determined in the concentration range of 0.35 mg/kg to 8575 mg/kg and includes the following components: methane, ethane, ethylene, propane, acetylene, isobutane, propadiene, normal butane, trans-2-butene, butene-1, isobutylene, cis-2-butene, isopentane, methylacetylene, normal pentane, and 1,3-butadiene.

    Note 1: Optionally, the analysis may include the determination of pentenes/hexanes and heavier components, see 6.3.

    1.2 This test method does not determine non-hydrocarbon impurities, and additional tests may be necessary to fully characterize the propylene sample. However, for the purposes of this test, the purity of propylene is determined as the difference between the total of the determined analytes and 100 % (by difference).

    1.3 When this test method is being used for the determination of trace level impurities in high-purity propylene, the use of this test method for the analysis of propylene samples at lower purities is not recommended due to the potential for cross contamination between samples.

    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 may involve hazardous materials, operations, and equipment. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    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

    D1265 Practice for Sampling Liquefied Petroleum (LP) Gases, Manual Method

    D3700 Practice for Obtaining LPG Samples Using a Floating Piston Cylinder

    F307 Practice for Sampling Pressurized Gas for Gas Analysis

    ICS Code

    ICS Number Code 71.080.10 (Aliphatic hydrocarbons)

    UNSPSC Code

    UNSPSC Code 15111503(Propylene)

    Referencing This Standard
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    DOI: 10.1520/D2712-18

    Citation Format

    ASTM D2712-18, Standard Test Method for Determination of Hydrocarbon Impurities in High Purity Propylene by Gas Chromatography, ASTM International, West Conshohocken, PA, 2018,

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