Our Envirocheck® dip slides, for semi-quantitative detection of microorganisms on surfaces and in liquids, are flexible paddles that are coated with different nutrient media. After sampling and incubation, the results of side A and side B allow any of five parameters to be determined, depending on the slide used. Envirocheck™ dip slides are available for a range of tests including E. coli, coliforms, yeast and molds, Enterobacteriaceae, Total Viable Count and disinfection control.

Slide A
Coated with Nutrient Agar containing 0.05% TriphenylTetrazolium Chloride (TTC). The growth of bacteria is indicated by red colonies due to the formation of red formazan dye when TTC is reduced.

Slide B
Coated with Nutrient Agar, a medium that is recommended by the American Public Health Association (APHA) for testing foodstuffs.