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The NFPA diamond is a hazard identification system that displays four colored quadrants: blue for health, red for flammability, yellow for instability, and white for special hazards, such as on the NFPA diamond chemical hazard ratings sign. The official NFPA 704 standard uses a 0-4 rating in each category.
NFPA 704 signs, such as our NFPA diamond placard ratings, are used to rate a wide variety of hazardous materials, including industrial chemicals and solvents.
NFPA 704 signs are widely used and recognized, but they complement, not replace, labeling requirements under OSHA's Hazard Communication Standard (HCS). OSHA requires specific GHS-style labels on containers, while a sign like the custom GHS chemical danger NFPA combo sign is typically used for stationary locations like tanks and buildings.
NFPA diamond signs range from small 4"x4" labels for containers to large 24"x24" signs for buildings, and are available in durable aluminum, plastic, and adhesive vinyl, such as our aluminum NFPA sign kit. You can see available dimensions on product pages, like this acetone sign.
Yes, you can customize NFPA diamonds for your specific needs. We also offer placard kits with number and symbol packs that allow you to build and update hazard ratings on-site.
NFPA 704 signs provide a simple, readily recognized, easily understood system for identifying the specific hazards of a material and the severity of the hazard that would occur during an emergency response.
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