Stock Solution: Dissolve 34 g of Monobasic Potassium Phosphate in about 500 ml of water contained in a 1000 ml volumetric flask.
Adjust to pH 7.2 ± 0.1 by the addition of 4 % w/v aqueous solution of Sodium Hydroxide (about 175 ml), add water to volume, and mix. Dispense and sterilize an Autoclave at 121–1240C, 1.1psi pressure for about 30 min. Store under refrigeration.
Aerobic Microbial Count, General testing procedure, incubated
Adjust to pH 7.2 ± 0.1 by the addition of 4 % w/v aqueous solution of Sodium Hydroxide (about 175 ml), add water to volume, and mix. Dispense and sterilize an Autoclave at 121–1240C, 1.1psi pressure for about 30 min. Store under refrigeration.
Aerobic Microbial Count, General testing procedure, incubated
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