Hazard Classes for Chemical Storage

Chemicals should be stored by hazard class to avoid incompatible chemicals being stored in close proximity.

1.	Chemicals may be stored alphabetically once separated by hazard class.
2.	The recommended hazard classes to use are:
		Flammable/combustible liquids
		Flammable solids
		Mineral acids
		Organic acids (liquid)
		Caustics
		Oxidizers
		Perchloric Acid
		Water Reactive
		Air Reactive
		Heat-reactive (require refrigeration)
		Unstable (shock-sensitive, explosive)
		Others
		Gases
			Toxic Gases
			Flammable Gases
			Oxidizing and Inert Gases
3.	Separation of hazard classes:
		Storage in separate cabinets is preferred
		If space is limited, containment trays may be used.
			Tray must be compatible with the materials stored in it.
			Tray must hold at least the volume of the largest container (in addition to all of the bottles stored in the tray) without overflowing.