COSHH Hazard Symbols — What They Mean
COSHH Hazard Symbols — What They Mean
GHS (Globally Harmonised System) pictograms — the red diamond labels on products you use every day.
| Symbol | Code | Meaning | Examples |
|---|---|---|---|
| Exploding bomb | GHS01 | Explosive | Cartridge-operated tools, some chemicals |
| Flame | GHS02 | Flammable | Solvents, adhesives, petrol, LPG |
| Flame over circle | GHS03 | Oxidiser | Bleach, oxygen cylinders |
| Gas cylinder | GHS04 | Gas under pressure | Propane, CO₂, compressed air |
| Corrosion | GHS05 | Corrosive | Cement, drain cleaner, acids, alkalis |
| Skull & crossbones | GHS06 | Acute toxicity | Methanol, pesticides |
| Exclamation mark | GHS07 | Harmful / Irritant | Cement dust, some paints, cleaning products |
| Health hazard | GHS08 | Serious health hazard | Silica dust, some epoxies, isocyanates |
| Dead fish & tree | GHS09 | Environmental hazard | Some solvents, oils, pesticides |
What You Must Do
If in doubt, don't use it without proper controls and PPE.
SiteKiln provides general guidance only. This is not legal, tax, financial or professional advice. Always verify information and seek professional advice if unsure. © SiteKiln 2026
Related guides: