flammable gas placard
Class 2.1 covers gases that ignite when mixed with air — propane, butane, LPG cooking gas, acetylene and hydrogen. The red diamond with the flame symbol means that a spark or open flame near a leaking cylinder can start an immediate fire, or an explosion in an enclosed space.
Where is it used and when is it required?
Fixed to gas cylinders, drums and containers, on the doors of gas and chemical stores, in warehouses in industrial cities such as Jubail and Jebel Ali, on LPG tankers and delivery trucks, and in laboratories that run fuel gas.
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, tankers and containers is 250 × 250 mm; a 100 × 100 mm label is enough on a single cylinder.
- Choose a weatherproof, UV-resistant material — colours fade fast in open storage yards.
- Keep the class number "2.1" at the bottom corner readable; do not hide it behind the cylinder valve or its cap.
Size guide
Choose the size from the maximum distance the sign must be read from (ISO 3864-1 guidance).
Print tip: use card stock or mount on foam board/acrylic, and print the PDF at 100% (not “fit to page”).
This sign is also known as: flammable gas placard، class 2.1 hazmat placard pdf، LPG cylinder store sign printable، dangerous goods flammable gas label. Informational sign not governed by a mandatory standard; designed in one consistent style for everyday use.
Included in packs
- Hazmat kit — $15
