Application of the Shewhart diagram to control the mean mass of tablets in the examination of manufacture process

ABSTRACT

Process validation is strictly required in good manufacturing practice. For doing so, Shewhart charts can be used effectively. In this work, two types of Shewhart charts including X-bar chart and R chart were applied to validate the production processes of Rantitidin tablets and Tryotricin lozenges. By using six rules of evaluation, the statistical process control of the mean tablet weights were clearly shown