Knowledge graph
GHS hazard statements (H-codes)
H-codes are the standardised sentences that describe the nature and severity of a chemical hazard under the UN GHS system. Every SDS Section 2 lists them. Click a code to see which substances carry it.
physical hazards
- H200Unstable explosive.
- H201Explosive; mass explosion hazard.
- H202Explosive; severe projection hazard.
- H203Explosive; fire, blast or projection hazard.
- H204Fire or projection hazard.
- H205May mass explode in fire.
- H220Extremely flammable gas.
- H221Flammable gas.
- H222Extremely flammable aerosol.
- H223Flammable aerosol.
- H224Extremely flammable liquid and vapour.
- H225Highly flammable liquid and vapour.
- H226Flammable liquid and vapour.
- H228Flammable solid.
- H240Heating may cause an explosion.
- H241Heating may cause a fire or explosion.
- H242Heating may cause a fire.
- H250Catches fire spontaneously if exposed to air.
- H251Self-heating; may catch fire.
- H252Self-heating in large quantities; may catch fire.
- H260In contact with water releases flammable gases which may ignite spontaneously.
- H261In contact with water releases flammable gases.
- H270May cause or intensify fire; oxidiser.
- H271May cause fire or explosion; strong oxidiser.
- H272May intensify fire; oxidiser.
- H280Contains gas under pressure; may explode if heated.
- H281Contains refrigerated gas; may cause cryogenic burns or injury.
- H290May be corrosive to metals.
health hazards
- H300Fatal if swallowed.
- H301Toxic if swallowed.
- H302Harmful if swallowed.
- H304May be fatal if swallowed and enters airways.
- H305May be harmful if swallowed and enters airways.
- H310Fatal in contact with skin.
- H311Toxic in contact with skin.
- H312Harmful in contact with skin.
- H314Causes severe skin burns and eye damage.
- H315Causes skin irritation.
- H317May cause an allergic skin reaction.
- H318Causes serious eye damage.
- H319Causes serious eye irritation.
- H320Causes eye irritation.
- H330Fatal if inhaled.
- H331Toxic if inhaled.
- H332Harmful if inhaled.
- H334May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- H335May cause respiratory irritation.
- H336May cause drowsiness or dizziness.
- H340May cause genetic defects.
- H341Suspected of causing genetic defects.
- H350May cause cancer.
- H351Suspected of causing cancer.
- H360May damage fertility or the unborn child.
- H361Suspected of damaging fertility or the unborn child.
- H362May cause harm to breast-fed children.
- H370Causes damage to organs.
- H371May cause damage to organs.
- H372Causes damage to organs through prolonged or repeated exposure.
- H373May cause damage to organs through prolonged or repeated exposure.
environmental hazards
- H400Very toxic to aquatic life.
- H410Very toxic to aquatic life with long lasting effects.
- H411Toxic to aquatic life with long lasting effects.
- H412Harmful to aquatic life with long lasting effects.
- H413May cause long lasting harmful effects to aquatic life.
- H420Harms public health and the environment by destroying ozone in the upper atmosphere.