Physical hazard · Gases under pressure

H280 — Contains gas under pressure; may explode if heated

Physical hazard statements describe what the substance itself can do — explode, ignite, react, corrode metal. No substance with a harmonised EU classification carries this code.

EU CLP: currentUS OSHA HazCom: currentUS HazCom 2012: currentUN GHS: current

01 · Wording

What H280 says

Official

Contains gas under pressure; may explode if heated.

Source

CLP Annex III · Physical hazards

Classification

Gases under pressure GHS chapter 2.5

Categories Compressed gas, Dissolved gas, Liquefied gas · pictogram GHS04 (gas cylinder) · signal word Warning

UN GHS history

Unchanged since 2009.

Rev.3 2009

Rev.4 2011

Rev.5 2013

Rev.6 2015

Rev.7 2017

Rev.8 2019

Rev.9 2021

Rev.10 2023

Rev.11 2025

wording never changed

Present in every UN GHS edition from Rev.3 (2009) to Rev.11 (2025), with the same wording throughout.

Nine editions of the UN model text, 86 hazard statements, 19 of which ever moved. Read the full story in what changed in UN GHS Rev.11.

02 · Languages

H280 in the 24 official EU languages

A label put on the market in an EU country must carry the wording of that country's own language version of CLP — not a translation of the English one. These 24 lines are quoted from the consolidated regulation, Annex III, and are the text to print.

Language	Official wording of H280
BG български Bulgarian	Съдържа газ под налягане; може да експлодира при нагряване.
ES español Spanish	Contiene gas a presión; peligro de explosión en caso de calentamiento.
CS čeština Czech	Obsahuje plyn pod tlakem; při zahřívání může vybuchnout.
DA dansk Danish	Indeholder gas under tryk, kan eksplodere ved opvarmning.
DE Deutsch German	Enthält Gas unter Druck; kann bei Erwärmung explodieren.
ET eesti Estonian	Sisaldab rõhu all olevat gaasi, kuumenemisel võib plahvatada.
EL ελληνικά Greek	Περιέχει αέριο υπό πίεση· εάν θερμανθεί, μπορεί να εκραγεί.
EN English English	Contains gas under pressure; may explode if heated.
FR français French	Contient un gaz sous pression; peut exploser sous l'effet de la chaleur.
GA Gaeilge Irish	Gás istigh ann, faoi bhrú; d'fhéadfadh sé pléascadh, má théitear.
HR hrvatski Croatian	Sadrži stlačeni plin; zagrijavanje može uzrokovati eksploziju.
IT italiano Italian	Contiene gas sotto pressione; può esplodere se riscaldato.
LV latviešu Latvian	Satur gāzi zem spiediena; karstumā var eksplodēt.
LT lietuvių Lithuanian	Turi slėgio veikiamų dujų, kaitinant gali sprogti.
HU magyar Hungarian	Nyomás alatt lévő gázt tartalmaz; hő hatására robbanhat.
MT Malti Maltese	Fih gass taħt pressjoni; jista' jisplodi jekk jissaħħan.
NL Nederlands Dutch	Bevat gas onder druk; kan ontploffen bij verwarming.
PL polski Polish	Zawiera gaz pod ciśnieniem; ogrzanie grozi wybuchem.
PT português Portuguese	Contém gás sob pressão; risco de explosão sob a acção do calor.
RO română Romanian	Conține un gaz sub presiune; pericol de explozie în caz de încălzire.
SK slovenčina Slovak	Obsahuje plyn pod tlakom, pri zahriatí môže vybuchnúť.
SL slovenščina Slovenian	Vsebuje plin pod tlakom; segrevanje lahko povzroči eksplozijo.
FI suomi Finnish	Sisältää paineen alaista kaasua; voi räjähtää kuumennettaessa.
SV svenska Swedish	Innehåller gas under tryck. Kan explodera vid uppvärmning.

Source: CELEX:02008R1272-20260501, Annex III. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic. Irish is one of the 24 official languages and its H and P texts are printed inside the multilingual Annex tables, but no consolidated CLP has ever been published in Irish — which is why an Irish-primary label cannot be built here.

03 · Legal status

Where H280 is current

GHS is a United Nations model text, revised every two years, and each jurisdiction adopts a revision on its own timetable. A code can be legally current in one system and deleted in another — that is normal, not an error.

Jurisdiction	Basis	Status of H280
EU CLP	Regulation (EC) 1272/2008 CLP Annex IV, Part 2 (consolidated)	Current
US OSHA HazCom	29 CFR 1910.1200 Appendix C UN GHS Rev.7 (final rule of 20 May 2024)	Current
US HazCom 2012	legacy · GHS Rev.3 UN GHS Rev.3, Annex 3	Current
UN GHS	Rev.11 (2025) UN GHS Rev.11, Annex 3	Current

Currently in force under: EU CLP, US OSHA HazCom, US HazCom 2012, UN GHS. Sources: EU CLP · US OSHA HazCom · US HazCom 2012 · UN GHS

04 · Substances

Substances carrying H280

No substance with a harmonised classification in CLP Annex VI carries this code. That does not mean it is unused — suppliers apply it to their own mixtures.

All hazard statements

The full list of H-codes with the jurisdiction switch lives on the hazard statements hub. For what to do about the hazard, see precautionary statements (P-codes).

SDS Manager

A hazard statement is not chosen — it follows from the classification, and the same code then has to stand in section 2 of the safety data sheet and on the label, in the official wording of every language the product is sold in. For doing that once and keeping it current when a classification changes, the solution we recommend is SDS Manager (ExactSDS). It also offers SDS management and a broader EHS suite.

Explore SDS authoring

Reader discount codes

GHS5 5% off annual plans SDS Manager Premium/Pro 200–400 SDSs · ExactSDS Standard 50–70 SDSs
GHS10 10% off annual plans SDS Manager Premium/Pro 500+ SDSs · ExactSDS Standard 100+ SDSs

SDS Manager is a partner solution. We may earn a commission if you subscribe through our link or with one of the codes above, at no extra cost to you. See our affiliate disclosure.

Wording quoted from the regulation named above. Substance counts come from harmonised classifications in CLP Annex VI — the statements on a real product also depend on the supplier's own classification. Always check the supplier safety data sheet.