ASTM D4672 - 18

    Standard Test Method for Polyurethane Raw Materials: Determination of Water Content of Polyols

    Active Standard ASTM D4672 | Developed by Subcommittee: D20.22

    Book of Standards Volume: 08.02


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    Significance and Use

    5.1 This test method is suitable for quality control, as a specification test, and for research. The water content of a polyol is important since isocyanates react with water.

    1. Scope

    1.1 This test method measures water content of polyols and many other organic compounds.

    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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    Note 1: This test method is equivalent to ISO 14897.

    1.4 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

    D883 Terminology Relating to Plastics

    D1193 Specification for Reagent Water

    E203 Test Method for Water Using Volumetric Karl Fischer Titration

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

    ISO Standards

    ISO14897 PlasticsPolyols for use in the production of polyurethaneDetermination of water content


    ICS Code

    ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics)

    UNSPSC Code

    UNSPSC Code 12352100(Organic derivatives and substituted compounds)


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

    DOI: 10.1520/D4672-18

    Citation Format

    ASTM D4672-18, Standard Test Method for Polyurethane Raw Materials: Determination of Water Content of Polyols , ASTM International, West Conshohocken, PA, 2018, www.astm.org

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