English 
Italian
Hazard pictograms
In 2003 the United Nations promoted and organised the “Globally Harmonized System of Classification and Labelling of Chemicals” - GHS, with the aim to worldwide level the criteria for the classification of the chemical products and their labelling.
GHS is an international binding agreement, which has to be implemented by states and regions through local legislations. In Europe the European Board put into effect the GHS through the Regulation CLP (Classification, Labelling and Packaging).
Based on this Regulation, a pictogram is a hazard symbol which provides information on the damages that a particular substance or mixture can cause to our health or to the environment.
Classification: Explosive (Unstable, Divisions 1.1, 1.2, 1.3 and 1.4), Self Reactive (Type A and B), Organic Peroxide (Type A and B)
Classification: Flammable (Solids Categories 1 and 2, Liquids Categories 1, 2 and 3, Gases Category 1, Flammable Aerosols Categories 1 and 2), Self Reactive (Type B, C, D, E and F), Pyrophoric, Self-heating, Emits Flammable Gas, Organic Peroxide (Type B, C, D, and F)
Classification: Corrosive (Skin Corrosion Categories 1A, 1B and 1C, Eye Corrosion Category 1), Corrosive to metals
Classification: Irritant (Skin Irritation Category 2 and Eye Irritation Category 2A), Dermal Sensitizer (Category 1), Acute Toxicity (Category 4, Harmful), Target Organ Toxicity/STOT Category 3 = Narcotic Effects, Respiratory Irritation
Classification: Carcinogen (Categories 1A, 1B and 2), Respiratory Sensitizer (Category 1), Reproductive Toxicity (Categories 1A, 1B and 2), Target Organ Toxicity/STOT (Categories 1 and 2), Mutagenicity (Categories 1A, 1B and 2), Aspiration Toxicity (Categories 1 and 2)
Classification: Acute Aquatic Toxicity (Category 1), Chronic Aquatic Toxicity (Categories 1 and 2)