Recent Blog Posts

Ammonia Week in Review | January 22, 2021

January 22nd, 2021

Residents in the Philippines smell ammonia from an ice plant in this week’s edition of the Ammonia Week in Review… Residents Complain of Ammonia Leak from an Ice Plant in Navotas – An ammonia leak was reported at an ice plant in Navotas City late Wednesday evening, triggering complaints from the residents about a foul smell in their […]

What-If/Checklist Methodology (Part 7)

January 19th, 2021

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 […]

Risk Ranking Matrix (Part 6)

January 5th, 2021

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 […]

Initial Session of the PHA (Part 5)

December 22nd, 2020

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 […]

PHA Logistics (Part 4)

December 8th, 2020

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 […]