Field testing kits containing reagents for analyzing water samples for bacterial contamination

bacterial preparations for pharmaceutical or veterinary use; reagents for testing for bacteria; media for bacteriological cultures; pharmaceutical, veterinary and sanitary preparations, namely, lactose, bile salts, casitone, and sodium, potassium, calcium and magnesium salts

chemical reagent for use in analytical determination of amount of total coliform and E. coli bacteria present in a liquid sample