Media H2S (Coliform & E.Coli) for Hygiene Test Kit

Group of H2S gas-forming bacteria will reduce peptone and thiosulfate contained in H2S media to form colorless H2S gas. H2S gas with specific indicators will produce black precipitate if there is a group of H2S -forming bacteria shown in the presence of black precipitates it is closely related to the presence of coliform group bacteria which is a clue or indicator that water has been contaminated by feces