GHS hazard class · Physical hazards
Gases under pressure
Gases under pressure are gases held in a receptacle at a pressure of 200 kPa (gauge) or more, or gases that are liquefied or liquefied and refrigerated. The GHS distinguishes compressed, liquefied, refrigerated liquefied and dissolved gases.
What it means
The cylinder or vessel can burst if it is heated. Refrigerated liquefied gases can also cause cryogenic burns or injury on contact.
What to do
Protect cylinders from sunlight and heat, keep them upright and secured, store in a well-ventilated place, and for refrigerated liquefied gases wear cold-insulating gloves and eye or face protection.
This is general guidance for the class. Your product's safety data sheet takes precedence.
Categories and hazard statements
Chemicals with gases under pressure hazard codes
Chemicals in our database whose primary classification includes any current Gases under pressure code (H280, H281).
4 chemicals in our database. Classification comes from each chemical's primary GHS source, so a supplier's SDS may differ.
Gases under pressure: frequently asked questions
What is the GHS hazard class "Gases under pressure"?
Gases under pressure are gases held in a receptacle at a pressure of 200 kPa (gauge) or more, or gases that are liquefied or liquefied and refrigerated. The GHS distinguishes compressed, liquefied, refrigerated liquefied and dissolved gases.
Which hazard statements belong to Gases under pressure?
The current hazard statements for this class are H280, H281.
Which pictograms and signal words are used for Gases under pressure?
Pictograms: GHS04 (Gas Cylinder). Signal word: Warning, depending on the category.
What should I do when working with a gases under pressure hazard?
Protect cylinders from sunlight and heat, keep them upright and secured, store in a well-ventilated place, and for refrigerated liquefied gases wear cold-insulating gloves and eye or face protection.
https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)