What does this sign mean?
Class 5.2 is for thermally unstable organic peroxides such as benzoyl peroxide and dicumyl peroxide, used as hardeners for resins and in polymer work. The diamond, red on top, yellow below, with the flame symbol, means heat or shock can trigger a rapid decomposition accompanied by fire, which is why these goods are kept refrigerated.
Where does it go and when is it required?
Fixed to packages, drums and refrigerated containers, on the doors of chemical stores and resin and fibreglass stores, in warehouses in industrial cities, on trucks carrying dangerous goods, and in laboratories and polymer plants.
Regulation notes: GHS, the Globally Harmonized System of Classification and Labelling of Chemicals, is the classification system adopted across the Gulf, and the placard's colours, symbol and class number all derive from it. Placarding stores, containers and vehicles is the expected practice in Saudi and UAE industrial zones whenever dangerous goods are stored or moved.
- The usual placard size on trucks and refrigerated containers is 250 × 250 mm; a 100 × 100 mm label is enough on a single package.
- Choose a weatherproof, UV-resistant material whose adhesive survives condensation inside chilled rooms.
- Keep the class number "5.2" at the bottom corner readable, it is what separates an organic peroxide from a plain 5.1 oxidizer.
This sign is also known as: organic peroxide placard, class 5.2 hazmat placard pdf, benzoyl peroxide storage sign printable, dangerous goods class 5.2 label. Informational sign not governed by a mandatory standard; designed in one consistent style for everyday use. Our own drawing, not the registered symbol from the standard.
