Pre-measured tablets for convenient preparation of 1X PBS solution, pH 7.3-7.5. Each tablet prepares 100 ml of a 1X solution. 1X PBS Solution contains 10mM Phosphate Buffer, 137mM Sodium Chloride, and 2.7mM Potassium Chloride.Each tablet prepares a 1X PBS solution when dissolved in 100 ml of ddH2O.