NFPA 704
This colour represents the Fire Hazard of a material.
What is Red?
Explosives are in this Class #
What is Class #1?
What is Fuel?
These particles are stopped by shielding as thin as a single sheet of paper.
What are alpha particles?
UN
What is United Nations?
This would be the highest number seen on an NFPA 704 placard.
What is 4 (four)?
Radioactive Materials are in this Class #.
What is Class #7
A large glass bottle that primarily contains corrosive materials.
What is a Carboy?
These rays travel at the speed of light and need dense shielding.
What are gamma rays?
TDG
What is Transportation of Dangerous Goods?
This coloured diamond is on the left side of the NFPA 704 placard.
What is Blue?
This class is for Acids and Bases
What are Corrosives / Class 8?
Chemical reaction in which a catalyst causes simple molecules to combine to form long chain molecules.
What is Polymerization?
Shielding necessary to stop this particle includes wood or metal, including aluminum foil.
What are Beta particles?
UEL
What is Upper Explosive Limit?
The white diamond represents this hazard type.
What are special hazards?
The fourth class of Hazardous Materials
What are Flammable Solids?
Liquefied gases that are at very low temperatures
What are Cryogenic Liquids?
This type of radiation hazard is normally associated with Nuclear Power Plants.
What is Neutron?
BLEVE
What is Boiling Liquid Expanding Vapour Explosion?
This would indicate that the material is an oxidizer.
What is OX?
This Hazardous Material is a Class 5.2.
What are Organic Peroxides?
Materials that are slow to break down and stay in the environment for a long time are considered to be this.
What is Persistant?
This type of package is used to transport materials with extremely low levels of radioactivity and would pose a very low hazard if released in accident.
What are Excepted Packages?
GEBMO
General Hazardous Material Behavior Model