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The Instruction Manual: Nomenclature for Diisocyanates TDI, MDI and Derivatives was written to assist those persons that manufacture, import, process, or distribute various forms of toluene diisocyanate (TDI), methylene diphenyl diisocyanate (MDI), and their derivatives. The manual is intended to help clarify the Toxic Substances Control Act (TSCA) Inventory listings for these substances, decrease the number of unnecessary premanufacture notices (PMN) that are submitted under TSCA, and encourage harmonization of terms. Note, however, that the manual is provided for guidance purposes only. Each reader is solely responsible to ensure compliance with the requirements set forth in TSCA and its regulations. EPA, working with the Chemical Abstracts Service (CAS) and the Diisocyanates Panel of the American Chemistry Council (formerly the Chemical Manufacturers Association), developed the uniform nomenclature scheme that forms the basis of the manual, which was published October 9, 1993, by the Chemical Manufacturers Association and Polyurethane Division of the Society of the Plastics Industry, Inc. To obtain the CD-ROM of the manual, please contact us at isofacts@americanchemistry.com.

Note that, because the manual was published in 1993, the contact information in it may not be current. Also, Part II of the Manual was written primarily to assist with a one-time opportunity EPA offered to participate in a simplified Inventory correction procedure to bring then-current listings into accordance with the nomenclature rules. The deadline for that opportunity was December 1, 1993 (any additional Inventory corrections must now use the regular EPA procedure). The Manual appendices that related to that one-time opportunity are not included on the CD-ROM. Nevertheless, the information in Part II may help readers to understand the nomenclature rules that are set out in Part I of the Manual.

This document summarizes information from the technical, scientific literature and is intended for reference by medical, scientific and regulatory personnel. The Diisocyanates Panel of the American Chemistry Council and its member companies believe that this document is, as of the date of its publication, a technically accurate summary of available scientific information. However, the Panel and its member companies do not make any warranties, express or implied, regarding the completeness or accuracy of the information presented and assume no responsibility or liability for its use. New information may be developed subsequent to the publication of this summary, which may render the summary incomplete or inaccurate. The Panel and its member companies assume no responsibility to amend, revise, retract, or update the summary to reflect any such information that may become available after its publication.

This information is brought to you by the member companies of the Diisocyanates Panel of the American Chemistry Council: BASF Corporation, Bayer MaterialScience, The Dow Chemical Company and Huntsman Polyurethanes. For more information, please call your supplier representative, or contact the Manager of the DII Panel at isofacts@americanchemistry.com .

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