Recent Blog Posts

P&IDs and Emergencies (Part 4)

May 11th, 2021

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 […]

Ammonia Week in Review | April 30, 2021

April 30th, 2021

An ammonia big rig kills another driver in this week’s edition of the Ammonia Week in Review… 1 Dead in Fiery Crash involving Big Rig Hauling Ammonia in Sutter County – One person was killed Thursday after a big rig hauling 20 tons of anhydrous ammonia crashed head-on with a pickup truck in a rural part of Sutter […]

P&IDs and PHAs (Part 3)

April 27th, 2021

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 […]

P&IDs and SOPs (Part 2)

April 13th, 2021

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 […]

Introduction to P&IDs (Part 1)

March 30th, 2021

It has been a few years since we last wrote about P&IDs. While most operators recognize that P&IDs are important, we often find there is confusion when it comes to using the diagrams in day-to-day operation. In the next few blogs, we will provide practical guidance to enable operators at PSM facilities to utilize P&IDs […]