The skull and crossbones pictogram indicates that a chemical has acute toxicity. This means the chemical is highly toxic and can cause harm or death if swallowed, inhaled, or comes into contact with the skin. It signals that the chemical poses a severe health hazard, potentially fatal upon exposure through ingestion, skin contact, or inhalation.

Detailed Meaning

• The pictogram is used specifically for chemicals classified under acute toxicity categories (oral, dermal, inhalation).
• Acute toxicity effects can result from a single dose or short-term exposure.
• The skull and crossbones symbolize danger of poisoning or fatal toxicity.

Safety Implications

• Chemicals with this pictogram require careful handling, proper protective equipment, and adherence to safety data sheets.
• The label often includes hazard statements such as "Fatal if swallowed," "Toxic if inhaled," or "Fatal in contact with skin" depending on the exposure type and severity.

This symbol serves as a clear warning of potentially lethal chemical hazards.