ATLANTA, GA — The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has published ANSI/ASHRAE Standard 34-2001, “Designation and Safety Classification of Refrigerants.”
“The standard establishes a simple means of referring to common refrigerants in place of chemical names, formulas or trade names,” the society states. “It also establishes safety classifications based on toxicity and flammability data.”