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Class 1 - Explosives
Substances and articles that may explode. Examples: dynamite, gelignite, nitropill, various explosives, fireworks, etc.
Class 2.1 - Flammable Gases
Gases that ignite when in contact with air and a source of ignition. Examples: liquefied petroleum gas (LPG), acetylene, etc.
Class 2.2 - Non-flammable, Non-toxic Gases
These gases displace oxygen in the atmosphere and are stored under high pressure, posing an additional hazard. Examples: nitrogen, carbon dioxide, oxygen, etc.
Class 2.3 - Toxic Gases
Gases that may cause death if inhaled. Examples: chlorine, ammonia gas, etc.
Class 3 - Flammable Liquids
Liquids that produce vapors which ignite upon contact with a source of ignition. Examples: gasoline, benzene, acetone, kerosene, methyl ethyl ketone, etc.
Class 4.1 - Flammable Solids, Self-reactive Substances, Polymerizing Substances, Desensitized Explosives
Substances and materials that emit sufficient vapor to ignite. Examples: sulfur, carbon, red phosphorus, etc.
Class 4.2 - Substances Liable to Spontaneous Combustion
Materials that can ignite without external heat or a source of ignition. Examples: aluminum alkyls, white phosphorus, etc.
Class 4.3 - Substances which, in contact with Water, Emit Flammable Gases
Substances and materials that emit toxic or flammable gases when in contact with water. Examples: sodium, zinc powder, calcium carbide, zinc phosphide, etc.
Class 5.1 - Oxidizing Substances
Substances and materials that release oxygen, increasing the intensity and rate of fire. Examples: sodium nitrate, potassium chlorate, ammonium nitrate, calcium hypochlorite, etc.
Class 5.2 - Organic Peroxides
Organic peroxides are thermally unstable substances or mixtures that may undergo exothermic decomposition. These materials are unstable and must be stored under refrigeration. Example: methyl ethyl ketone peroxide.
Class 6.1 - Toxic Substances
Substances that cause injury or death if swallowed, inhaled, or in contact with skin. Example: cyanide.
Class 6.2 - Infectious Substances
Examples: waste containing viruses, bacteria, or other pathogens.
Class 7 - Radioactive Material
Ionizing radiation emitted from these materials can affect the human body and disrupt metabolic processes. Examples: uranium, plutonium, strontium, etc.
Class 8 - Corrosive Substances
Substances that cause severe damage when in contact with skin or harm the respiratory tract when inhaled as vapor. Examples: hydrochloric acid, sulfuric acid, nitric acid, caustic soda, etc.
Class 9 - Miscellaneous Dangerous Substances and Articles
Substances and articles that present hazards not covered by other classes. Examples: dry ice, asbestos, hot bitumen, molten aluminum, etc.