Recent Blog Posts
We all know the mantra “if it wasn’t documented, it didn’t happen.” With this in mind, upon completion of the activity, a report must be prepared to document the PHA study. Inevitably, the PHA report will contain recommendations that must be tracked to completion. Recommendation due dates should be determined by the PHA team and […]
There are several PHA methodologies listed in the RMP, PSM, and CalARP regulations. The International Institute of Ammonia Refrigeration (IIAR) recommends using the What-If/Checklist methodology for ammonia refrigeration PHAs. The What-If/Checklist methodology is easy to understand since each question begins with the words “What if…” The simplest way to explain how this methodology is implemented […]
In order to objectively rate the risk of each scenario that is considered, most PHAs utilize a risk ranking matrix. The concept of risk is the product of the severity of the event occurring and the likelihood of its occurrence. The matrix that we typically use at Resource Compliance has severity on the vertical axis […]
Most PHAs are conducted in multiple sessions. The number and duration of the sessions will be determined by team member availability and system complexity. Often, the initial session of the PHA is used to: Introduce each member of the PHA team; Review the requirements and purpose of the PHA; Introduce the team to the chosen […]
It is ideal to perform the PHA at the site where the process being studied is located. This provides opportunity to verify the system configuration if needed. The PHA team will need to meet in a room that is large enough to comfortably seat each team member. Prior to meeting as a team, all logistical […]