Hazard Symbols

NFPA Hazard Label (National Fire Protection Association)

fire/flammability hazard

reactivity/stability

health hazard

special hazard

no or low hazard

no health hazard, not reactive, moderate flammability, no special hazard

moderate health hazard, serious reactivity, extreme flammability, unusual reactivity with water

extreme health hazard, not reactive, slight flammability, oxidizer

label

health hazard

classifications

carcinogen, mutagenicity, reproductive toxicity, respiratory sensitizer, target organ toxicity, aspiration toxicity

label

flame

classifications

flammables, pyrophorics, self-heating, emits flammable gas, self-reactives, organic peroxides

label

exclamation mark

classifications

irritant (skin and eye), skin sensitizer, acute toxicity (harmful), narcotic effects, respiratory tract irritant, hazardous to ozone layer

label

gas cylinder

classifications

gases under pressure

label

corrosion

classification

skin corrosion/burns, eye damage, corrosive to metals

label

exploding bomb

classification

explosives, self-reactives, organic peroxides

label

flame over circle

classification

oxidizers

label

environment

classifications

aquatic toxicity

label

skull and cross bones

classifications

acute toxicity (fatal or toxic)

worldwide system for hazard communication

globally harmonized system (GHS)

summary of hazards

safety data sheets (SDS)