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compressed gas
gases under pressure
flammable
fire hazards
oxidizer
oxidizing hazards
acute toxicity (fatal or toxic)
can cause death/toxicity
health hazard
can (potentially) cause serious health effects
Acute toxity (harmful)
irritation to skin, eyes, etc.
corrosive
corrodes stuff (metal, organs, etc.)
explosive
explosive/reactive substances
biohazardous infectious material
organisms/toxins that can causes illnesses
environmental hazard
damages the environment
Toxic
cause slower effects to the body
Dangerously reactive
Certain chemicals when mixed, undergo vigorous reactions and can produce harmful side effects.
WHMIS
Workplace Hazardous Materials Information System