Question

Five hazard classes that require placarding in any amount are__

Answer 1

The five hazard classes that require placarding in any amount are explosives, gases, flammable liquids, flammable solids, and oxidizing substances.

Step-by-step explanation:

The five hazard classes that require placarding in any amount are:

1. Explosives: These include substances and articles that have the ability to produce an explosion or a pyrotechnic effect.
2. Gases: This class includes compressed gases, liquefied gases, and gases dissolved under pressure.
3. Flammable liquids: These are liquids that have a flashpoint below 141 degrees Fahrenheit and a vapor pressure not exceeding 40 PSI at 100 degrees Fahrenheit.
4. Flammable solids: These are substances that can ignite easily and continue to burn after being ignited.
5. Oxidizing substances: These are substances that provide oxygen to support combustion and can cause or enhance the burning of other materials.

These five hazard classes are identified by specific placards when being transported in any amount to alert others about the potential danger they pose.