Source of the photo
              BME ABÉT
          Author of the description
              VE
          Keeping in the thermostate: The closed Petri dishes are kept in the thermosate at 20 °C, for 5 days, in the dark.
Source of description
              Feigl, V. Hungarian version of the description of the Sinapis Alba test: https://www.enfo.hu/keptar/3700