H-Statements – Hazard Statements per CLP/GHS

H-Statements (Hazard Statements) describe the nature and severity of hazards of chemical substances according to CLP Regulation (EC) No 1272/2008. They are divided into three categories: physical hazards (H200 series), health hazards (H300 series), and environmental hazards (H400 series).

All categoriesPhysical hazardsHealth hazardsEnvironmental hazards

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Physical hazards

H200Unstable explosive.

4 substancesH201Explosive; mass explosion hazard.

29 substancesH220Extremely flammable gas.

29 substancesH221Flammable gas.

1 substancesH224Extremely flammable liquid and vapour.

10 substancesH225Highly flammable liquid and vapour.

121 substancesH226Flammable liquid and vapour.

100 substancesH227Combustible liquid.

H228Flammable solid.

12 substancesH240Heating may cause an explosion.

1 substancesH241Heating may cause a fire or explosion.

H242Heating may cause a fire.

5 substancesH250Catches fire spontaneously if exposed to air.

8 substancesH260In contact with water releases flammable gases which may ignite spontaneously.

17 substancesH261In contact with water releases flammable gases.

3 substancesH270May cause or intensify fire; oxidiser.

3 substancesH271May cause fire or explosion; strong oxidiser.

15 substancesH272May intensify fire; oxidiser.

15 substancesH280Contains gas under pressure; may explode if heated.

H281Contains refrigerated gas; may cause cryogenic burns or injury.

H290May be corrosive to metals.

3 substances

Health hazards

H300Fatal if swallowed.

132 substancesH301Toxic if swallowed.

282 substancesH302Harmful if swallowed.

593 substancesH303May be harmful if swallowed.

H304May be fatal if swallowed and enters airways.

34 substancesH310Fatal in contact with skin.

72 substancesH311Toxic in contact with skin.

164 substancesH312Harmful in contact with skin.

200 substancesH313May be harmful in contact with skin.

H314Causes severe skin burns and eye damage.

250 substancesH315Causes skin irritation.

286 substancesH316Causes mild skin irritation.

H317May cause an allergic skin reaction.

465 substancesH318Causes serious eye damage.

172 substancesH319Causes serious eye irritation.

238 substancesH320Causes eye irritation.

H330Fatal if inhaled.

157 substancesH331Toxic if inhaled.

168 substancesH332Harmful if inhaled.

194 substancesH333May be harmful if inhaled.

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled.

47 substancesH335May cause respiratory irritation.

170 substancesH336May cause drowsiness or dizziness.

39 substancesH340May cause genetic defects.

37 substancesH341Suspected of causing genetic defects.

86 substancesH350May cause cancer.

155 substancesH351Suspected of causing cancer.

143 substancesH360May damage fertility or the unborn child.

H361Suspected of damaging fertility or the unborn child.

H362May cause harm to breast-fed children.

12 substancesH370Causes damage to organs.

18 substancesH371May cause damage to organs.

2 substancesH372Causes damage to organs through prolonged or repeated exposure.

115 substancesH373May cause damage to organs through prolonged or repeated exposure.

223 substances

Environmental hazards

H400Very toxic to aquatic life.

933 substancesH401Toxic to aquatic life.

H402Harmful to aquatic life.

H410Very toxic to aquatic life with long lasting effects.

855 substancesH411Toxic to aquatic life with long lasting effects.

394 substancesH412Harmful to aquatic life with long lasting effects.

55 substancesH413May cause long lasting harmful effects to aquatic life.

1 substancesH420Harms public health and the environment by destroying ozone in the upper atmosphere.

5 substances