Direct measurement of emissions


US EPA Emissions Measurement Center (EMC)

The EMC website provides guidance on approved, proposed and other test methods for measuring emissions from industrial sources. This site compiles test methods available for emission measurement, and EMC staff provide technical assistance in the use and application of the methods. Click here to view this resource.


US EPA-approved methods for isocyanates

A variety of methods are used by the isocyanates industry to sample/analyze emissions. For example, EPA-approved methods commonly used for measuring isocyanates emissions from stacks include, but are not limited to, the following Conditional Test Method (CTM) protocols: