For preparation of microbial suspension, dilution or washing. The low content of peptone along with phosphate buffer and sodium chloride maintains the viability of micro organisms without supporting growth.Composition (g/L):3.6g Potassium phosphate, dibasic7.2g Sodium Phosphate, monobasic 4.3g Sodium chloride & 1g Enzymatic digest of CaseinStorage: Store cool at room temperature.