Hazard Symbols Symbols & Their Meanings
14 hazard symbols symbols explained — meaning, origin, spiritual significance, and how each one is used today.
Biohazard Symbol
Biohazard Symbol — biological material that can infect or kill — designed in 1966 to be memorable but meaningles…
🧪Corrosive Symbol
Corrosive Symbol — liquid dripping onto a hand and a surface — burns skin and eats through materials on contact.
🌿Environmental Hazard Symbol
Environmental Hazard Symbol — a dead tree and dead fish — toxic to aquatic life and ecosystems.
💥Explosive Symbol
The Explosive Symbol: an exploding mass — the substance can detonate from shock, heat, or friction.
🔥Flammable Symbol
The Flammable Symbol: a flame pictogram — the material can ignite easily; keep away from heat, sparks, and open flame.
🎈Gas Under Pressure Symbol
Gas Under Pressure Symbol — a gas cylinder pictogram — pressurized gas that can explode when heated or rocket of…
⚠️General Warning Symbol (GHS)
General Warning Symbol (GHS) — an exclamation mark in a triangle — irritants and less-severe hazards: skin, eye,…
⚕️Health Hazard Symbol
The Health Hazard Symbol: a white starburst human silhouette — chronic dangers: carcinogens, respiratory sensiti…
⚡High Voltage Symbol
The High Voltage Symbol: a lightning bolt in a triangle — electrical energy that can kill before you touch it, t…
🔴Laser Warning Symbol
Laser Warning Symbol — a starburst with a beam — concentrated light that can permanently damage eyes in a fracti…
🚫No Entry / Prohibition Symbol
The No Entry / Prohibition Symbol: a red circle with a slash — whatever is pictured inside is forbidden.
🧯Oxidizer Symbol
Oxidizer Symbol — a flame over a circle — feeds fires without burning itself; makes other materials ignite faste…
☢️Radioactive Trefoil
The Radioactive Trefoil: ionizing radiation — the three-bladed magenta/yellow design from 1946, representing rad…
☠️Skull and Crossbones (Toxic)
Skull and Crossbones (Toxic) — acute toxicity — poison that can kill or seriously harm at low exposure; pirates …