H229 · Hazard statementPressurized container: may burst if heated

Hazard statementPhysicalDiffers: EU

H229 is the GHS hazard statement “Pressurized container: may burst if heated”. It is used for Aerosols (chapter 2.3), Category 1, 2, 3. The English wording is the same as UN GHS Rev.11 in US OSHA and Canada. The wording differs in EU CLP. Canada’s official French text is “Récipient sous pression : peut éclater sous l’effet de la chaleur” and Mexico’s Spanish text is “Contiene gas a presión, puede reventar si se calienta”. The UN GHS Rev.11 label matrix lists 4 precautionary statements for it (UN only).

Maintained by Valenc. Data checked 2026-10-20.

Heading text: UN GHS Rev.11 Annex 3. Wording can differ by jurisdiction; see the table below.

Wording by jurisdiction

UN GHS Rev.11

Same as UN

GHS Rev.11 (2025), Annex 3

Pressurized container: may burst if heated

UN GHS Rev.11, Annex 3, Table A3.1.1, PDF p. 302

US OSHA HCS

Same as UN

HCS 2024 · primarily GHS Rev.7, some Rev.8

Pressurized container: may burst if heated.

29 CFR 1910.1200 App. C, matched by wording

EU CLP

Differs

EU_CLP_2025 · consolidated 1 Jul 2026

Pressurised container: May burst if heated.

EU CLP (Reg. (EC) No 1272/2008), Annex III, Part 1

Canada (EN)

Same as UN

WHMIS_2022 · GHS Rev.7 (Rev.8 for chemicals under pressure)

Pressurized container: may burst if heated

GHS Rev.7 Annex 3 Table A3.1

Canada (FR)

Adopted

WHMIS_2022 · SGH Rév.7, texte officiel

Récipient sous pression : peut éclater sous l’effet de la chaleur

GHS Rev.7 Annex 3 Table A3.1

Mexico (ES)

Adopted

NOM-018-STPS-2015 · GHS 5th revised edition

Contiene gas a presión, puede reventar si se calienta

Aerosoles · 1, 2, 3

NOM-018-STPS-2015, DOF 9 October 2015, Apéndice C, Tabla C.1, PDF p. 30

Hazard classes and categories

Aerosols (chapter 2.3) · Category 1, 2, 3

UN GHS Rev.11 Annex 3, sections 1 and 2

FRAérosols (chapitre 2.3) · catégorie 1, 2, 3

ESAerosoles · 1, 2, 3 (NOM-018-STPS-2015)

Pictogram: Flame (GHS02) for Aerosols, Category 1; Aerosols, Category 2. No pictogram for Aerosols, Category 3.

UN GHS Rev.11 Annex 3, section 3. Pictogram rules can differ by jurisdiction; see the GHS pictogram guide.

P statements in the UN GHS Rev.11 label matrix only

UN GHS Rev.11 only. EU CLP, US OSHA, Canada (GHS Rev.7) and Mexico assign different P statements; check the regulation for your market.

Aerosols (chapter 2.3, section 2.3.1), categories 1, 2 (PDF p. 348)
P210 P211 P251 P410+P412
Aerosols (chapter 2.3, section 2.3.1), categories 3 (PDF p. 349)
P210 P251 P410+P412

UN GHS Rev.11 Annex 3, section 3. Each table covers the categories named; a P statement may apply to only some of them. Many apply only under conditions; check the conditions for use before putting them on a label.

Related codes

H222 H223

Change in UN GHS Rev.11

No change to the wording or the hazard classes in Annex 3 compared with Rev.10.

Notes

In the Rev.11 matrix, P211 is listed for Aerosols Categories 1 and 2 only, not Category 3.

Sources

Each cell in the table names the official table and page for H229. Full citations, links and revision notes for UN GHS Rev.11, US OSHA, EU CLP, Canada and Mexico: Sources and revision notes.

These are regulatory phrases for labels and safety data sheets. Check them against the official source for your jurisdiction before use.