The “Fire Diamond” or “NFPA 704” refers to signs posted at locations that contain hazardous materials. The purpose of the signs are to alert emergency personnel to the risks posed by the materials.
What is the NFPA 704 Fire Diamond? (92sec)

The “Fire Diamond” or “NFPA 704” refers to signs posted at locations that contain hazardous materials. The purpose of the signs are to alert emergency personnel to the risks posed by the materials.