Mealey's (September 16, 2022, 11:34 AM EDT) -- WASHINGTON, D.C. — A chemical company on Sept. 15 filed an amended statement of issues in the District of Columbia Circuit U.S. Court of Appeals challenging a test order issued by the U.S. Environmental Protection Agency related to the chemical 6:2 fluorotelomer sulfonamide betaine (6:2 FTSB), contending that it does not manufacture or use the chemical in its manufacturing process for the firefighting agent aqueous film forming foam (AFFF)....