What hazardous material placard is used for 40mm and 240mm ammunition?

The hazardous material placard used for 40mm and 240mm ammunition is typically the "Explosive" placard, which is designated with a red background and a symbol of an exploding bomb. This placard indicates that the materials are classified as explosives and require special handling and storage procedures to ensure safety. The specific UN identification numbers associated with the ammunition may vary, so it's essential to refer to relevant regulations for detailed guidance.