M-Lauryl Sulphate Broth (DM335) is recommended for enumeration of Escherichia coli and coliforms in water, using membrane filter technique.
| Ingredients | Gms / Liter |
| Peptic digest of animal tissue | 39.00 |
| Lactose | 30.00 |
| Yeast extract | 6.00 |
| Phenol red | 0.20 |
| Sodium lauryl sulphate | 1.00 |
| Final pH: 7.4 ± 0.2 at 25°C | |
| Formula may be adjusted and/or supplemented as required to meet performance specifications | |
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