Introduction to Ammunition (AMMO-45) Practice Test

In hazard communication, the skull-and-crossbones pictogram signals toxicity. This symbol is used on chemical labels to indicate that the substance is poisonous or highly toxic, meaning exposure through ingestion, inhalation, or skin contact can cause serious health effects or death even in small amounts. Because of that, it demands strict precautions: appropriate personal protective equipment, proper ventilation, careful handling to avoid inhalation or skin contact, and consultation of the safety data sheet for specific exposure limits and first aid steps. This symbol identifies toxic agents, not hazardous waste, nor corrosive or flammable properties—each of those hazards has its own separate symbol.