Fighting Flames Stan Karwoski, a senior fire test technician at the Naval Research Laboratory, tests the effectiveness of aqueous film-forming foam by spraying it on a gasoline fire in a 28- square foot container. The test took place at the laboratory in Chesapeake Beach, Md., Oct. 25, 2019. SHARE IMAGE: Download Image: Full Size (1.32 MB) Photo By: David Vergun, DOD VIRIN: 191025-D-UB488-010.JPG Photo Gallery