Recent Blog Posts

Ammonia Week in Review | April 17, 2026

April 17th, 2026

Ammonia Stirs Havoc On Base in this week’s edition of the Ammonia Week in Review… 4 Hospitalized ‘Out of … Caution’ After Ammonia Leak at Homestead Air Base – An ammonia leak inside the Homestead Air Reserve Base on Wednesday morning, April 15, 2026, sent four people to a hospital with non-serious injuries, officials say. […keep reading] Properties […]

Properties of Refrigerants: Refrigerant Safety Groups

April 14th, 2026

ASHRAE Standard 34 is titled “Designation and Safety Classification of Refrigerants”. Among other things, this standard assigns each refrigerant a safety group classification based on the refrigerant’s flammability and toxicity. Refrigerants with low toxicity are given a rating of ‘Class A’, while refrigerants with higher toxicity are assigned ‘Class B’. According to Standard 34, refrigerants […]

Ammonia Week in Review | April 10, 2026

April 10th, 2026

Ammonia Triggers Response in this week’s edition of the Ammonia Week in Review… State Investigating After Ammonia Leak Reported at Chicken Plant in Union County – State officials were investigating after an ammonia leak was reported at a chicken plant in Union County. […keep reading] Ammonia Leak Prompts Hazmat Response at Local Manufacturing Facility – An ammonia leak prompted […]

Properties of Refrigerants: Refrigerant Numbers

April 7th, 2026

What do the various refrigerant numbers mean? Believe it or not, there is a method to the madness. First of all, most refrigerants are “organic compounds,” which means they have one or more carbon-hydrogen or carbon-carbon bonds. The only series classified as “inorganic”, or lacking these bonds, is the 700-series, which includes ammonia, carbon dioxide, […]

History of Refrigerants

March 31st, 2026

When the refrigeration cycle was first developed, natural compounds were the only available refrigerants. Ammonia, carbon dioxide, and even sulfur dioxide were readily available and had useful thermodynamic properties. These refrigerants were great choices because they were easy to manufacture, readily available, and inexpensive to purchase.  Unfortunately, due to the toxicity and flammability of these […]