Which hazard symbol should be posted outside a magazine storing 155mm M10 WP projectiles?

The correct hazard symbol to post outside a magazine storing 155mm M10 WP (white phosphorus) projectiles is associated with the explosive and hazardous material characteristics of the content. In this case, white phosphorus is known for its incendiary properties and poses specific risks related to fire and burns upon contact with skin.

Symbol 1 set 3 effectively represents the explosive nature and the associated hazards of the storage material. This symbol is designed to alert personnel to the potential dangers of the contents being stored in the magazine, including the risk of fire and reaction with air. It is crucial to have accurate and clear hazard symbols in place to ensure the safety of personnel, facilitate proper handling and storage, and comply with the relevant safety regulations. This provides immediate recognition of the hazards present, ensuring that individuals take the necessary precautions when operating in or near that area.