Estimation of % percentage of titrable acidity of Gastric juice: Titrable Acidity: It is the amount of acid present in gastric juice. It is the amount of NaOH required to neutralize the acidity of gastric juice. Free acidity: It is the amount of free acid or HCL present in gastric juice. Normal range is 20-40% Combined Acidity: It is the amount of HCl that is bound … [Read more...]