Recent Blog Posts

Ammonia Refrigeration System Oil Draining Requirements

October 29th, 2024

Ammonia refrigeration systems must be equipped with a means of draining oil from the system. Over time, small amounts of oil are carried out of the compressors and mix with the ammonia vapor. The ideal place to collect and drain this oil is on the low pressure side of the refrigeration system. The cold temperatures […]

Ammonia Component Marker Requirements

October 1st, 2024

This is an update to a blog that was originally posted on 5/25/15. You can read the original blog here. New Ammonia Refrigeration Systems For new ammonia refrigeration systems, all vessels and equipment (compressors, condensers, etc.) must follow the component marker requirements in ANSI/IIAR 2-2021 §4.2. The standard states the following in regard to component […]

Ammonia Week in Review | September 6, 2024

September 6th, 2024

Ammonia Sails in this week’s edition of the Ammonia Week in Review… ClassNK Publishes Ammonia Leak Estimates – Japanese classification society ClassNK has published estimated leak frequencies of ammonia fuel from onboard components for ammonia-fuelled ships, to be used for risk assessment. […keep reading] Q&A | Safe Access to Equipment – Question: Do I have to provide safe access […]

Ammonia Week in Review | August 9, 2024

August 9th, 2024

Ammonia Appears Perilous in this week’s edition of the Ammonia Week in Review… 17 Hospitalised After Ammonia Gas Leak at Food Processing Company in Pune District– Seventeen people, including 15 women, were hospitalised after ammonia gas leaked from the cooling unit of a food processing company in Pune district on Wednesday.  […keep reading] Ammonia Leak Sparks Evacuation at […]

Standard 9 has been revised – Here’s what you need to know!

August 5th, 2024

The first edition of IIAR Standard 9 was published in 2020. Consistent with the document title, “Standard for Minimum System Safety Requirements for Existing Closed-Circuit Ammonia Refrigeration Systems”, Standard 9 lays out the minimum requirements that all systems must adhere to, regardless of when they were built. The original publication of Standard 9 required facilities […]