What does Class 1 in the hazard classification system refer to?

Class 1 in the hazard classification system specifically refers to explosives. This classification encompasses a range of substances and articles that can undergo rapid chemical decomposition, producing gas and heat, which can result in an explosion. Examples include dynamite, fireworks, and other pyrotechnic materials. Understanding this classification is crucial for peace officers and emergency responders, as it guides the appropriate handling, storage, and transportation of such materials, ensuring safety for both personnel and the public. The importance of recognizing explosives lies in their potential for causing severe harm, such as injury or property damage, which requires specific protocols when encountered in the field.