1. Compressed Gas- Any type of gas that is under pressured or has been chilled, and put in a cylinder can be considered compressed gas. It is hazardous because if the container is broken, it can be dangerous to anyone close by as it travels at great speed.
2.Oxidizing Material- This type hazard isn't danger by itself, but it can aid other materials to catch fire as it provides oxygen and that is necessary for a fire to occur.
3.Flammable and Combustible Materials- Flammable materials catch fire easily at normal temperatures (below 37.8 degrees C or 100 deg F). Combustible materials usually need to be provided with heat over normal temperature (between 37.8 and 93.3 deg C or 100 and 200 deg F) to catch fire.
4. Poisonous and Infectious Materials(Causing Immediate and Serious Toxic Effects)- These materials can be life threatening as they're poisonous. They can come into affect in a few minutes or in a few hours, leading to loss of conciseness, burns, coma or death.
5. Poisonous and Infectious Materials (Causing Other Toxic Effects)- These materials are also toxic, but they're not quick to react and if so, it's a very temporary reaction. Even though these materials don't have immediate reactions they still can cause: cancer, allergies, reproductive system problems, harm to the baby, change to your genes, chronic effects.
6. Bio hazardous Infectious Material- These materials include toxins that can causes diseases in people or animals. They make also cause serious illness or death. These organisms live in body tissues or fluids, they can be treated as toxic.
7. Corrosive Material- These materials can burn skin on contact, and hurt human tissue like the eyes and lungs. Corrosives can cause permanent scarring, blindness, lung injury, or death. This hazard can also attack metal and weaken it causing it to collapse.
8. Dangerously Reactive Material- These materials are strongly reactive and release toxic gas quickly with water provided. These materials react dangerously in circumstances such as, being dumped or dropped, temperature increasing, or pressure increasing.