Health: FDA prohibits three perfluorinated substances in packaging. The substances of concern: certaindiethanolaminesalts of mono- and bis-(1H, 1H, 2H, 2H- perfluoroalkyl) phosphates; 4,4-bis-[(γ-ω-perfluoro-C8–20- alkyl)thio] derivatives, and certainperfluoroalkyl- substituted phosphate ester acids.
