GHS hazard class · Physical hazards
Flammable solids
Flammable solids are solids that are readily combustible, or that may cause or contribute to fire through friction. Readily combustible solids are powdered, granular or pasty substances that are easily ignited by brief contact with an ignition source and burn quickly.
What it means
The solid can ignite easily and the fire can spread quickly. Fine dust may also form explosive clouds in air.
What to do
Keep away from heat, sparks, open flames and hot surfaces, avoid creating dust, keep containers closed, and follow the extinguishing advice on the SDS.
This is general guidance for the class. Your product's safety data sheet takes precedence.
Categories and hazard statements
Chemicals with flammable solids hazard codes
Chemicals in our database whose primary classification includes any current Flammable solids code (H228).
1 chemical in our database. Classification comes from each chemical's primary GHS source, so a supplier's SDS may differ.
Flammable solids: frequently asked questions
What is the GHS hazard class "Flammable solids"?
Flammable solids are solids that are readily combustible, or that may cause or contribute to fire through friction. Readily combustible solids are powdered, granular or pasty substances that are easily ignited by brief contact with an ignition source and burn quickly.
Which hazard statements belong to Flammable solids?
The current hazard statements for this class are H228.
Which pictograms and signal words are used for Flammable solids?
Pictograms: GHS02 (Flame). Signal words: Danger or Warning, depending on the category.
What should I do when working with a flammable solids hazard?
Keep away from heat, sparks, open flames and hot surfaces, avoid creating dust, keep containers closed, and follow the extinguishing advice on the SDS.
https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)