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  • ASTM D 5296 : 2019

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    Standard Test Method for Molecular Weight Averages and Molecular Weight Distribution of Polystyrene by High Performance Size-Exclusion Chromatography

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-11-2019

    Publisher:  American Society for Testing and Materials

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    1.1This test method covers the determination of molecular weight (MW) averages and the distribution of molecular weights for linear, soluble polystyrene by high-performance size-exclusion chromatography (HPSEC). This test method is not absolute and requires the use of commercially available narrow molecular weight distribution (MWD) polystyrene standards for calibration. This test method is applicable for samples containing molecular weight components that have elution volumes falling within the elution volume range defined by polystyrene standards (that is, molecular weights generally from 2000 to 2 000 000 g·mol−1).

    1.2The HPSEC is differentiated from traditional size-exclusion chromatography SEC (also referred to as gel permeation chromatography (GPC)) in that the number of theoretical plates per metre with an HPSEC system is at least ten times greater than that for traditional SEC (see Terminology D883 and Practice D3016).2 The HPSEC systems employ low-volume liquid chromatography components and columns packed with relatively small (generally 3 to 20 μm) microporous particles. High-performance liquid chromatography instrumentation and automated data handling systems for data acquisition and processing are required.

    1.3The values stated in SI units are to be regarded as the standard.

    1.4This 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. Specific precautionary statements are given in Section 9.

    Note 1:There is no known ISO equivalent to this standard.

    1.5This 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.

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    Committee D 20
    Document Type Test Method
    Publisher American Society for Testing and Materials
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ASTM F 2902 : 2016 : EDT 1 Standard Guide for Assessment of Absorbable Polymeric Implants
    ASTM F 2313 : 2018 Standard Specification for Poly(glycolide) and Poly(glycolide-co-lactide) Resins for Surgical Implants with Mole Fractions Greater Than or Equal to 70 % Glycolide
    ASTM F 1925 : 2017 Standard Specification for Semi-Crystalline Poly(lactide) Polymer and Copolymer Resins for Surgical Implants
    ASTM F 2579 : 2018 Standard Specification for Amorphous Poly(lactide) and Poly(lactide-co-glycolide) Resins for Surgical Implants
    ASTM F 561 : 2019 Standard Practice for Retrieval and Analysis of Medical Devices, and Associated Tissues and Fluids
    ASTM D 6666 : 2004 : R2019 Standard Guide for Evaluation of Aqueous Polymer Quenchants
    ASTM D 6474 : 2019 Standard Test Method for Determining Molecular Weight Distribution and Molecular Weight Averages of Polyolefins by High Temperature Gel Permeation Chromatography
    ASTM F 2150 : 2019 Standard Guide for Characterization and Testing of Biomaterial Scaffolds Used in Regenerative Medicine and Tissue-Engineered Medical Products

    Standards Referencing This Book - (Show below) - (Hide below)

    ASTM D 2857 : 2016 Standard Practice for Dilute Solution Viscosity of Polymers
    ASTM D 883 : 2022 Standard Terminology Relating to Plastics
    ASTM D 883 : 2020 : REV B Standard Terminology Relating to Plastics
    ASTM E 691 : 2020 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
    ASTM E 691 : 2019 : EDT 1 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
    ASTM E 685 : 1993 : R2021 Standard Practice for Testing Fixed-Wavelength Photometric Detectors Used in Liquid Chromatography
    ASTM E 691 : 2022 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
    ASTM E 685 : 1993 : R2013 Standard Practice for Testing Fixed-Wavelength Photometric Detectors Used in Liquid Chromatography
    ASTM D 2857 : 2022 Standard Practice for Dilute Solution Viscosity of Polymers
    ASTM E 691 : 2009 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
    ASTM E 691 : 2021 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
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