Recent Blog Posts
A great way to maintain P&ID accuracy is to implement an effective management of change (MOC) program. If used correctly, an MOC will initiate modifications to PSM elements that require attention when a facility or process change takes place. Assuming the scope of an MOC includes process equipment, the P&IDs will require amendment. Here is […]
We advocate that P&IDs be included in the training program for operators of PSM processes. Due to the complexity of diagrams, it is important for operators to regularly interact with P&IDs to improve their ability to use them. Here are some suggestions on how to incorporate P&IDs into operator training: Operator Sketch – Give an […]
Preparation is critical for emergency readiness. At a chemical facility, an accurate P&ID is an indispensable tool to aid hazmat responders in making decisions during a crisis. With this in mind, P&IDs must be readily available to responders at all times. Often, chemical leaks can be stopped by closing a downstream isolation valve. The P&ID […]
Title 29 CFR 1910.119(d) requires that process safety information be developed prior to conducting a PHA. Therefore, one can conclude that it is unacceptable to complete a PHA when P&IDs are absent. But if having P&IDs available is simply viewed as a formality, the PHA team will not reap the benefits of the drawings. Often […]
RMP, PSM, and CalARP regulations require that operating procedures (SOPs) be developed and implemented to provide clear instructions to safely conduct activities involved in a chemical process. The law requires that SOPs be “consistent with the process safety information”. If you accept the premise that P&IDs are the cornerstone of process safety information, then it […]