What symbol is typically used on a label for toxic materials?

The symbol commonly used on labels for toxic materials is the skull and crossbones. This specific imagery is recognized internationally as a warning sign that indicates the presence of toxic or poisonous substances. It is crucial to recognize this symbol since it alerts individuals to the dangers associated with handling, transporting, or being in close proximity to toxic materials. The skull and crossbones label signifies that exposure to the substance could result in serious health risks or even death, making it imperative for anyone working with or around such materials to take appropriate safety precautions.

The other symbols listed serve different purposes. The exclamation mark symbol indicates a general hazard, such as irritants or health hazards that may not be lethal but require caution. The cylinder symbol is used for gases under pressure, emphasizing the potential for physical hazards related to pressurized contents, such as explosions. The corrosive symbol represents materials that can cause damage to living tissue or severe corrosion to materials. Understanding these distinctions helps ensure safety and compliance when handling hazardous materials.