What does "LPG" stand for in the context of hazardous materials?

In the context of hazardous materials, "LPG" stands for Liquefied Petroleum Gas. This term refers to a group of flammable hydrocarbon gases used as fuel in heating appliances, cooking equipment, and vehicles. LPG is primarily composed of propane and butane and is stored in liquid form under pressure. When released into the atmosphere, it vaporizes and can form explosive mixtures with air, making it important for peace officers and emergency responders to understand the properties, handling, and risks associated with LPG. This understanding is crucial for mitigating hazards during incidents involving this gas, ensuring proper safety measures are taken during a response. Other options listed relate to different substances or concepts, which do not pertain to the general usage and recognition of LPG in hazardous materials contexts.