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A Guide to COSHH Symbols
Use the table below to identify which COSHH signs and symbols you need to display on cabinets when storing hazardous materials.
Read our full COSHH guide here.
| Description | CLP Hazard Pictogram | Meaning | Storage | Chemicals | Segregate From: |
| Explosive materials |  | Unstable explosive chemicals | Store in a secure location away from all other chemicals | Tri-nitro compounds, Heavy metal azides | All other chemicals |
| Flammable |  | Flammable liquids, gasses or solids. | Flammable storage cabinet | Acetone, Benzene, Methanol | Acids, Bases Oxidisers, Poisons |
| Oxidising Substances |  | Spontaneously evolve oxygen at room temperature or with slight heating. | Separate non-combustible cabinet | Hydrogen Peroxide, Halogens, Nitrate Compounds | Flammables Reducing Agents |
| Pressurised Gas |  | Includes flammable, oxidising & poisonous gasses. | Store in a cool, dry area in secure upright cylinders | Flammable – Methane, Oxidsing – Chlorine, Poisonous – Carbon Monoxide | Segregate oxidising, flammable & poisonous gas from one another.
|
| Corrosive |  | Will cause serious skin burns or eye damage. Also corrosive to metals. | Store in a protected acid/alkali storage cabinet | Acids – hydrochloric acid, sulfuric acid. Alkali – Ammonium hydroxide. | Flammables, Segregate acids from alkalis, Oxidisers |
| Toxic |  | Acute toxicity (oral, dermal, inhalation), Very toxic (fatal), Poison | Store in a vented, cool dry area in a chemically resistant secondary container | Cyanides | Flammables, Acids & Bases, Oxidisers |
| Irritant Harmful Substance |  | Health hazards are less serious but still harmful. | Store in a cool, dry, hazardous cabinet labelled correctly | Bleach, Chemicals in household cleaning products | Explosive materials |
| Long term Health Hazard |  | Poses a serious long-term health risk and includes carcinogens and mutagens. | Keep in limited quantities in a secure hazardous chemical cabinet, locked and labelled. | Asbestos, Benzene, Vinyl Chloride | Flammables, Corrosives, Explosive chemicals |
| Hazardous to Environment |  | Hazardous to the aquatic environment & the Ozone layer. | In a cool, dry area in a labelled hazardous cabinet | Zinc Oxide | Explosives |
Good post which elaborates the importance of the danger signs. Danger signs should not be taken lightly as it can be life saving in workplaces. We deal in safety signs and we know the importance of these signs. Good post and was helpful in increasing our knowledge about these signs. Thank you.
Very informative post which shows why signs are of utmost importance. We sell prohibition signs and safety signs. Reading posts like these which are related to our work helps us to know more about our sign work. Thanks a lot.
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