Recommended for cultivation of wide variety of aerobes and fungi and for inactivation of penicillins, cephalosporins of first, second, third and fourth generation and penems. Lecithin neutralizes quaternary ammonium compounds and polysorbate 80 neutralizes phenolic disinfectants, hexachlorophene, formalin and with lecithin ethanol. Available in scored plate for environmental monitoring, sterility checks by touch or contact method. Grids for easy counting.