Compressed gases: e.g., canned butane, scuba oxygen bottles, aqualung cylinders, paint in spray can, insecticides, propane, hydrogen, acetylene, oxygen bottles, liquid nitrogen, , etc.
Corrosives: e.g., acids, alkalis, mercury and mercury-containing devices and wet-cell batteries.
Explosives: e.g., munitions, ammunitions, fireworks, firecrackers, flares, etc.
Flammable liquids and solids: e.g., kerosene(kerosene stove), lighter fuel, "blue flame" or "cigar" lighters, matches, paints, thinners, lighters and related flammable solids, etc.
Briefcases and attached cases with built-in alarm devices.
Oxidizing materials: e.g., bleaching powder, peroxides, etc.
Poisons and infectious substances: e.g., arsenic, weed-killers, insecticides and live-virus materials.
Other dangerous articles such as asbestos, magnetized material, offensive or irritating materials (such as tear-gas, pepper spray, stun guns, Tasers, etc.)