Technical Data
Presence-Absence Broth (Powder)
Microbiological Grade
Storage RT/4C    Shipping RT
Formulation per Liter:
Beef Extract3.0g
Sodium Chloride2.46g
Disodium Phosphate1.35g
Monopotassium Phosphate1.35g
Sodium Lauryl Sulfate0.5g
Bromocresol Purple0.0085g
A standard methods medium for a one-step presumptive identification of Coliforms in water.

Appearance: Beige, homogeneous, free flowing powder

pH: As Reported

Microbiological Tests:
Enterococcus faecalis ATCC 29212 Good Light gray, No gas production
Escherichia coli ATCC 25922 Good, Yellow, gas production
Escherichia coli ATCC 11775 Good, Yellow, gas production
Pseudomonas aeruginosa ATCC 27853, Good Gray/purple, No gas production

Storage and Stability:
Store powdered media at RT. Opened bottles should be capped tightly and kept in a dark, low humidity environment. Prepared media should be kept at 4C and used within a short period of time.

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.