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Guidelines for Diisocyanate Storage Tank Systems 

The following guidelines have been developed to describe possible equipment options for storage tank systems intended for diisocyanate product service, specifically Monomeric Methylene Diphenyl Diisocyanate (MMDI), Polymeric Methylene Diphenyl Diisocyanate (PMDI) and Toluene Diisocyanate (TDI). Each item on this reference table is more fully described in the subsequent text. This reference table is not meant to be all-inclusive and may not cover all the legal requirements for storage tanks at a particular facility or operation. Consult your supplier for additional information. Consider each item and refer to the accompanying text for discussion. Use of this reference table is not a substitute for the thorough review of the equipment guidelines for diisocyanate storage tanks found in the body of this document. 

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American Chemistry Council

The American Chemistry Council’s mission is to advocate for the people, policy, and products of chemistry that make the United States the global leader in innovation and manufacturing. To achieve this, we: Champion science-based policy solutions across all levels of government; Drive continuous performance improvement to protect employees and communities through Responsible Care®; Foster the development of sustainability practices throughout ACC member companies; and Communicate authentically with communities about challenges and solutions for a safer, healthier and more sustainable way of life. Our vision is a world made better by chemistry, where people live happier, healthier, and more prosperous lives, safely and sustainably—for generations to come.