Question 819 Deck General

The correct answer is D) Non-flammable gases. According to U.S. regulations, a Class 2.2 substance is classified as a "Non-flammable, non-toxic gas." This includes gases that do not meet the criteria for being flammable or toxic, such as nitrogen, helium, and carbon dioxide. The proper label name for a Class 2.2 substance is "Non-flammable gases." The other options are incorrect because: A) Inert gases are a specific type of non-flammable gas, B) Flammable gases are a different hazard class (Class 2.1), and C) Poison gases are a different hazard class (Class 2.3).