GHS hazard statement
H282: Extremely flammable chemical under pressure: may explode if heated
- H282
- Physical hazards
- Danger
H282 means “Extremely flammable chemical under pressure: may explode if heated”. It is a GHS hazard statement for Chemicals under pressure (Category 1), shown with GHS02 and GHS04 under the signal word “Danger”.
Hazard class and category
| Hazard class | Category | Pictogram | Signal word | UN transport class |
|---|---|---|---|---|
| Chemicals under pressure | Category 1 |   | Danger | Div 2.1 |
What H282 means
Chemicals under pressure are liquids or solids (often pastes or powders) pressurized with a gas in a pressure receptacle, other than an aerosol dispenser.
The container is pressurized and can burst if it is heated. The contents may also be flammable.
What to do
Protect from sunlight and heat, do not pierce or burn the container, and keep away from ignition sources if the product is also flammable.
This is general guidance for the hazard class. The safety data sheet for your product always takes precedence.
Precautionary statements for H282
The GHS lists these precautionary statements for this hazard. Which ones appear on a label depends on the supplier's classification.
| Code | Statement |
|---|---|
| P210 | Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking. |
| P211 | Do not spray on an open flame or other ignition source. |
| P370+P378 | In case of fire: Use ... to extinguish. |
| P376 | Stop leak if safe to do so. |
| P381 | In case of leakage, eliminate all ignition sources. |
| P410+P403 | Protect from sunlight. Store in a well-ventilated place. |
Chemicals carrying H282
No chemicals in our database are classified with H282 yet.
H282 frequently asked questions
What does H282 mean?
H282 means "Extremely flammable chemical under pressure: may explode if heated". It is a GHS hazard statement in the physical hazards group, covering Chemicals under pressure (Category 1).
Which pictogram goes with H282?
H282 is shown with GHS02 (Flame) and GHS04 (Gas Cylinder).
What signal word goes with H282?
The signal word for H282 is "Danger".
Which precautionary statements go with H282?
The GHS data lists 6 precautionary statements for H282, including P210, P211, P370+P378, P376, P381. They cover prevention, response, storage and disposal. The full list is on this page.
Hazard statements describe the hazard of a classified substance or mixture. The classification of a specific product can differ, so use the supplier's SDS.
https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)