ARLINGTON, VA. -- The Alliance for the Polyurethanes Industry (API) is making available a bulletin summarizing current technologies and techniques for industrial hygiene air monitoring for MDI and TDI. The bulletin, Industrial Hygiene Air Monitoring for MDI and TDI, presents an overview of several analytical methods and techniques for sampling and analyzing diisocyanates in workplace atmospheres.

The bulletin describes the need for workplace air monitoring for MDI and TDI while providing guidance for personal and area sample collection. Several instruments and derivatization methods for monitoring vapors are also included, along with useful Web sites for additional data on instruments, equipment and methods.

The bulletin can be downloaded from the API Web site at