Which hazard class includes explosives?

The hazard class that includes explosives is Class 1. This classification encompasses substances and articles that pose a risk of explosion, including a wide range of materials such as dynamite, fireworks, and ammunition. The primary characteristic of explosives is their ability to undergo a rapid chemical reaction that can produce gas and heat, leading to a dangerous explosion.

Class 1 is further divided into divisions based on the type and severity of the explosive hazard, which helps in categorizing the different vehicles or containers used for transport and ensuring appropriate handling measures are taken to mitigate risks.

In contrast, Class 4 refers to flammable solids, while Class 3 includes flammable liquids, and Class 8 encompasses corrosive substances. Each of these other classes is focused on different types of hazards that do not involve explosive reactions, thereby differentiating them from the characteristics of Class 1.