Hazardous Goods Service Items

Class 2: Gases

• 2.1 Flammable Gases (red background with flame symbol): Hydrogen, Methane, Acetylene, Propane, Butane, Isobutane, Propylene, Refrigerant Gases
• 2.2 Non‑flammable, Non‑toxic Gases (green background gas cylinder symbol): Nitrogen, Oxygen, Carbon Dioxide, Argon, Helium, Neon, Krypton
• 2.3 Toxic Gases (white background with skull‑and‑crossbones symbol): Chlorine, Ammonia, Carbon Monoxide, Phosgene

Class 3: Flammable Liquids

• Gasoline, Diesel, Alcohol, Acetone, Thinner, Paint, Paint Thinner, Solvent Naphtha
• Characteristics: Flash point ≤60°C, highly volatile, flammable and explosive when exposed to open flames

Class 4: Flammable Solids / Spontaneously Combustible Substances / Substances Dangerous When Wet

• 4.1 Flammable Solids (red‑white striped background with flame symbol): Sulfur, Magnesium Powder, Camphor, Matches
• 4.2 Spontaneously Combustible Substances (blue background with flame symbol): Yellow Phosphorus, White Phosphorus, Oiled Cloth
• 4.3 Substances Emitting Flammable Gases When Wet (blue background with flame symbol): Sodium Metal, Calcium Carbide, Sodium Hydride

Class 5: Oxidizing Substances & Organic Peroxides

• 5.1 Oxidizing Substances (yellow background with circle‑and‑flame symbol): Potassium Permanganate, Hydrogen Peroxide, Sodium Nitrate, Bleaching Powder
• 5.2 Organic Peroxides (yellow‑red background with flame symbol): Benzoyl Peroxide, Methyl Ethyl Ketone Peroxide (explosive, temperature‑controlled)

Class 6: Toxic & Infectious Substances

• 6.1 Toxic Substances (white background with skull‑and‑crossbones symbol): Cyanides, Arsenides, Highly Toxic Pesticides, Mercury Compounds
• 6.2 Infectious Substances (white background with biohazard symbol): Medical Waste, Virus Samples, Bacterial Cultures

Class 7: Radioactive Materials

• Radioactive Ores, Uranium Compounds, Industrial Radiographic Sources, Medical Radiopharmaceuticals
• Marking: Trefoil symbol, yellow background with black characters, Category I / II / III

Class 8: Corrosive Substances

• Sulfuric Acid, Hydrochloric Acid, Nitric Acid, Sodium Hydroxide, Potassium Hydroxide, Bleach, Formaldehyde, Caustic Soda, etc.
• Marking: Liquid corroding hand/metal, white‑top‑and‑black‑bottom background

Class 9: Miscellaneous Dangerous Substances

• Lithium Batteries, Lithium Battery Packs, Magnetic Substances, Air‑prohibited Goods, Environmentally Hazardous Substances

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