ASTM WK37087

    New Test Method for Measuring Unreacted TDI in Urethane Prepolymers and Coatings

    (What is a Work Item?)

    Developed by Subcommittee: D01.33 | Committee D01 | Contact Staff Manager


    1. Scope

    This test method provides an analytical procedure for quantifying the amount of unreacted toluene diisocyanate (TDI) in a urethane prepolymer or related coating product.

    Toluene diisocyanate (TDI) is commonly used in the production of urethane-based coating resins. TDI is a known toxic chemical and a possible human carcinogen. There are many handling precautions taken in industry when working with TDI. TDI is safe when fully reacted into a polymeric system but unreacted TDI can affect human health. If TDI is present in industrial products, it must be accurately measured to ensure proper handling requirements are adopted. It is highly undesirable for unreacted TDI to be present in consumer products.



    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
    Back to Top
    Work Item Status

    Date Initiated:

    Technical Contact:
    Neal Rogers

    Draft Under Development