Gases stored under pressure which may explode if heated.
Chemicals that destroy living tissue or metal on contact.
Chemicals toxic to aquatic life or with long-lasting environmental effects.
Substances capable of rapidly releasing energy through detonation or deflagration.
Substances that catch fire easily in contact with air or water.
Substances causing less severe health effects like skin irritation or respiratory sensitization.
Substances with long-term health effects such as carcinogenicity or mutagenicity.
Substances that can cause or contribute to the combustion of other material.
Substances that can cause death or acute toxicity even in small quantities.
Graphical symbols used to communicate specific information about the hazards of a chemical.