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GHS hazard statement

H229: Pressurized container: may burst if heated

  • H229
  • Physical hazards
  • Danger

H229 means “Pressurized container: may burst if heated”. It is a GHS hazard statement for Aerosols (Category 1), shown with GHS02 under the signal word “Danger”.

Hazard class and category

Hazard classCategoryPictogramSignal wordUN transport class
AerosolsCategory 1
GHS pictogram GHS02: Flame
DangerDiv 2.1
AerosolsCategory 2
GHS pictogram GHS02: Flame
WarningDiv 2.1
AerosolsCategory 3NoneWarningDiv 2.2

What H229 means

Aerosols are spray dispensers (non-refillable containers made of metal, glass or plastic) holding a gas that is compressed, liquefied or dissolved under pressure, with or without a liquid, paste or powder, and fitted with a release device. The GHS classifies them by flammability.

The contents may be flammable, and the pressurized container can burst if heated, even when it seems empty.

What to do

Do not spray on an open flame or other ignition source, keep away from heat and direct sunlight, do not pierce or burn the container even after use, and follow the supplier's maximum storage temperature.

This is general guidance for the hazard class. The safety data sheet for your product always takes precedence.

Precautionary statements for H229

The GHS lists these precautionary statements for this hazard. Which ones appear on a label depends on the supplier's classification.

CodeStatement
P210Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking.
P211Do not spray on an open flame or other ignition source.
P251Do not pierce or burn, even after use.
P410+P412Protect from sunlight. Do not expose to temperatures exceeding 50 °C/122°F.

Chemicals carrying H229

No chemicals in our database are classified with H229 yet.

H229 frequently asked questions

What does H229 mean?

H229 means "Pressurized container: may burst if heated". It is a GHS hazard statement in the physical hazards group, covering Aerosols (Category 1).

Which pictogram goes with H229?

H229 is shown with GHS02 (Flame). By category: Category 1: GHS02, signal word Danger; Category 2: GHS02, signal word Warning; Category 3: no pictogram, signal word Warning.

What signal word goes with H229?

It depends on the category: Category 1: GHS02, signal word Danger; Category 2: GHS02, signal word Warning; Category 3: no pictogram, signal word Warning.

Which precautionary statements go with H229?

The GHS data lists 4 precautionary statements for H229, including P210, P211, P251, P410+P412. 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)