Chemical Safety Part 1 : What you don What you don’t know can hurt you
Chemical Safety Part 2. What is a physical hazard ? 
Chemical Safety Part 3. What is an MSDS?
Chemical Safety Part 4. Hazardous Chemical Protection : Implementation of Hazard Controls

Simple Definition – elements, chemical compounds, or – mixtures of elements and/or compounds which poses
potential risk to safety or health.

Regulatory Definition – means any chemical which presents a physical hazard or a health hazard.

Hazardous Chemical Hazardous Chemical

“Physical Hazard” means a chemical for which means a chemical for which there is scientifically valid evidence that it is a:
Combustible liquid
Compressed Gas
Explosive Explosive
Flammable Flammable
Organic peroxide
Oxidizer
Pyrophoric
unstable (reactive) or water – reactive.

Hazardous Chemical, Physical Hazard Categories :

Fire Hazards
Flammable gas
Flammable aerosol
Flammable solid
Flammable liquid
Combustible liquid
Oxidizer
Pyrophoric

Hazardous Chemical
Physical Hazard Categories
Explosion Hazards
Compressed gas
Explosive Explosive
Reactive Hazards
Organic peroxide
Unstable (reactive)
Water -reactive reactive

Hazard Information 1

How can you tell if the chemical you are working How can you tell if the chemical you are working with is hazardous? with is hazardous?
• Perform a Hazard Determination
• Review the Container Label
• Review the Material Safety Data Sheet
• Contact EHS Dept.

Hazard Determination
Chemical manufacturers and importers are required to evaluate chemicals they produce or import to determine
if they are hazardous.
This includes assessment for both physical and health hazards.

Container Labeling 1

The chemical manufacturer, importer, or distributor is required to ensure that each container of hazardous chemical leaving their workplace is labeled, tagged or marked with the following
information:
• Identity of the hazardous chemical(s);
• Appropriate hazard warnings; and
• Name and address of the responsible party (manufacturer, importer, other).

Container Labeling 2

In the workplace or lab, each container of hazardous chemicals must be labeled, tagged or marked with the
following information:
• Identity of the hazardous chemical(s) contained therein; and,
• Appropriate hazard warnings,

Container Labeling 3 
If it is in its original container as provided from the manufacturer, then maintain the original label.
If you dispense it into another container, then make sure it is immediately, appropriately labeled with:
• Identity of the hazardous chemical(s) contained therein; and, • Appropriate hazard warnings,