Recent Blog Posts

Ammonia Detection in Non-Machinery Rooms

March 5th, 2024

  Question: Is ammonia detection required in rooms that contain ammonia, but are not classified as machinery rooms? Answer: This depends on which codes and standards the refrigeration system is subject to. New ammonia refrigeration systems are required to have ammonia detection in both machinery rooms and non-machinery rooms that contain ammonia equipment. Since IIAR […]

Ammonia Week in Review | February 9, 2024

February 9th, 2024

International Irritant in this week’s edition of the Ammonia Week in Review… Action Likely Against Fertiliser Firm Over Ammonia Gas Leakage in Tamil Nadu’s Ennore – Fertiliser firm Coromandel International could face legal action and pay an environmental compensation of ₹5.92 crore for the December 26 ammonia gas leak in Ennore. […keep reading] Ammonia Leak at Sausage Factory […]

Access to Refrigeration Systems

February 6th, 2024

It has long been required that access be considered when designing and installing an ammonia refrigeration system. In fact, we wrote about this topic in some detail back in 2013. Since a decade has passed, it seems appropriate to revisit the relevant access requirements contained within the current RAGAGEP documents applicable to ammonia refrigeration. ANSI/IIAR […]

Ammonia Release | Auto-Purger

January 23rd, 2024

Summary In September 2012, the rupture of an auto-purger bubbler resulted in two injuries, one of which was permanent and disabling. The root causes were determined to be a buildup of scale inside the bubbler, and failure to follow proper maintenance/operating procedures. Incident Description Water & mineral deposits were collected in the drain line of […]

IIAR 6 Appendix B Pressure Vessels Checklist | Part 8

December 13th, 2023

Part 8: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. Items M and N ask if the vessel certification drawings and manufacturer data report are on file. The data report, commonly referred to as a U-1 or U-1A form, we […]