Upper and Lower Safe Limits

In the course of operation, all process plants will experience upsets because of control malfunction, pump outage, power outage and the like. During such upsets, process conditions may deviate from the normal operating range. It is important that the safe operating limits for critical operating parameters for hazardous operations is known to the operators. These should be established and incorporated into the operating procedures.

Management/Process Safety Information and Knowledge/Operational Data