Signage: NFPA Diamonds
Whether you are responsible for signage or not, you have inevitably come across many NFPA diamond signs in your day-to-day life. This sign, also called the “fire diamond,” is made up of 4 smaller diamonds, each with its own purpose.
The required use of this sign is most often set by local fire departments or other agencies, but the sign itself is standardized by the National Fire Protection Association (NFPA). It is important to note that “NFPA 704 applies when another Federal, state, or local regulation or code requires its use.” Also, it “does not specify when a container, tank, or facility must be labeled, rather it specifies how to label when another code, standard, or AHJ requires such labeling.” (Hart, 2021)
The fire diamond features four sections, the top being red, the right side yellow, the left side blue, and the bottom white. Each section is standardized to ensure that the hazards present are immediately identifiable to first responders in the case of an emergency, such as a fire.
Let’s break them down.
Flammability (Red): The top “12 o’clock” section communicates the flammability of the materials on site. You will see a number 0-4 in this section. A “0” indicates that materials will not burn, while on the other end of the range a “4” indicates that flammable liquids, volatile liquids, or pyrophoric materials are present.
Instability (Yellow): In the yellow “3 o’clock” diamond, we see a number indicating level of instability. A “0” in this section means that the materials are “normally stable” with a “4” indicating that materials are “readily capable of detonation or explosion.”
Health (Blue): At “9 o’clock,” is the health section, noting the potential health hazard level. Like the previous 2 components, a “0” here means the hazard is minimal with a “4” indicating severe hazards.
Special (White): The only potentially empty section of the diamond is the special hazards space, located at “6 o’clock.” This section may have one of a few symbols; Water reactivity (W), Oxidizer (OX), or Simple Asphyxiant (SA).
Each of these pieces of information communicate clearly to first responders how to proceed in the case of a fire or other emergency and limit preventable injuries or mistakes that could occur. However, a major consideration for this sign is where it should be placed. The information is useless if it cannot be seen. As such, it is best to contact your local fire department to ensure that signs are posted effectively.
Fire diamonds can save lives and prevent major damage. If you are unsure about use or placement, as stated above, we encourage you to reach out to your local fire department for the best and more tailored advice. In the meantime, feel free to give us a call at 919-602-2503 or email us at marketing@safetypackonline.com for more information on NFPA 704 signage.
Resources
NFPA: “Hazardous Materials Identification”, Jonathan Hart, November 5, 2021
https://www.nfpa.org/news-blogs-and-articles/blogs/2021/11/05/hazardous-materials-identification
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