DuPont™ FM-200® (also known as HFC-227ea) is a Clean Agent Fire Suppressant and is probably the most popular of the Clean Agent family meeting the NFPA Standard 2001 Clean Agent Fire Extinguishing Systems. FM-200® is rated for use on Class A, B, and C type fires. FM-200® is normally used in concentrations ranging from 6.25% to 9% per volume. FM-200® is offered by all of the major fire suppression system manufactures in the USA. It is also used worldwide. FM-200® works by interrupting the fire triangle at the molecular level, is odorless, and non-conductive. There is no residue after the release of a FM-200® System. FM-200® has good flow characteristics and can be designed for modular or manifolded (combined) system use. Per NFPA requirements, FM-200® is designed for a 10 second discharge time.