Formula:

Pancreatic Digest of Casein....5.0
Lactose............................4.0
Disodium Hydrogen 
Phosphate.......................10.0
Sodium acid selenite.............4.0
L-Cystine.........................0.01                               
Final pH 7.0±0.2 at 25℃

Directions:

Suspend 23.0/L, dispensing in sterile flasks or test tubes. Use in the preparation day, need not autoclaving.

Quality control and typical characteristics:

Inoculate Salmonella 10-100 CFU, incubate at 36 ℃ 18-24 hours, obvious growth and cloudy solution