Dey-Engley Neutralizing Agar Plate (γ-irradiated) (Triple Pack)

Recommended in disinfectant testing where neutralization of the chemical is important for determining its bactericidal activity. Neutralizes a broad spectrum of antiseptics and disinfectants including quaternary ammonium compounds, phenolics, iodine and chlorine preparations, mercurials, formaldehyde and glutaraldehyde. Sodium bisulfite neutralizes aldehydes; sodium thioglycollate neutralizes mercurials; sodium thiosulfate neutralizes iodine and chlorine, lecithin neutralizes quaternary ammonium compounds; and polysorbate 80, a non-ionic surface-active agent, neutralizes substituted phenolics. Bromocresol purple is an indicator for dextrose utilization. The plates are gamma irradiated and triple packed. Available in scored plate for environmental monitoring, sterility checks by touch or contact method. Grids for easy counting.