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 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 […]
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, […]
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 […]
Ammonia Vanishes in this week’s edition of the Ammonia Week in Review… Anhydrous Tank Accident Leads to Precautionary Evacuation in Rural Bond County – Residents within three miles of the location were urged to evacuate safely. Authorities were shutting down the area for an unknown amount of time and were also knocking on doors. […keep reading] Phaphamau Ammonia Leak Case: […]
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