ASTM D789-98

    Standard Test Methods for Determination of Relative Viscosity and Moisture Content of Polyamide (PA)


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    1. Scope

    1.1 These test methods cover the determination of relative viscosity, and moisture content as they apply to polyamide (PA).

    1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

    1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. For a specific statement on safety, see 10.4.


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

    ISO Standards

    ISO 16396-1

    ISO 307

    ASTM Standards

    D446 Specifications and Operating Instructions for Glass Capillary Kinematic Viscometers

    D883 Terminology Relating to Plastics

    D2162 Practice for Basic Calibration of Master Viscometers and Viscosity Oil Standards

    D6779 Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)

    E1953 Practice for Description of Thermal Analysis and Rheology Apparatus

    E2975 Test Method for Calibration or Calibration Verification of Concentric Cylinder Rotational Viscometers


    ICS Code

    ICS Number Code 83.080.20 (Thermoplastic materials)

    UNSPSC Code

    UNSPSC Code 13102011(Polyamide Nylons PA)


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    DOI: 10.1520/D0789-98

    Citation Format

    ASTM D789-98, Standard Test Methods for Determination of Relative Viscosity and Moisture Content of Polyamide (PA), ASTM International, West Conshohocken, PA, 1998, www.astm.org

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