Recommended for neutralizing and testing antiseptics and disinfectants. It neutralizes a broad spectrum of antiseptics and disinfectants including quaternary ammonium compounds, phenolic, iodine and chlorine preparations, mercurials, formaldehyde and glutaraldehyde. Sodium bisulfite sodium thioglycollate,; sodium thiosulfate , lecithin and polysorbate 80 are the neutralizers. Bromocresol purple is the pH indicator and dextrose is the fermentable carbohydrate. It is available in 10 ml quantity.