What's the meaning of the NFPA 704 warning sign »
NFPA 704 warning sign
This page is about the meaning, origin and characteristic of the symbol, emblem, seal, sign, logo or flag: NFPA 704 warning sign.
The US-based National Fire Protection Association (NFPA) has a standard NFPA 704 using a diamond with four colored sections each with a number indicating severity 0—4 (0 for no hazard, 4 indicates a severe hazard).
The red section denotes flammability. The blue section denotes health risks. Yellow represents reactivity (tendency to explode). The white section denotes special hazard information. One example of a special hazard would be the capital letter W crossed out (pictured right) indicating it is water reactant. This label is used primarily in the US.
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Graphical characteristics:
Asymmetric, Closed shape, Colorful, Contains straight lines, Has crossing lines.
Category: Hazard Symbols.
More symbols in Hazard Symbols:
Hazard symbol are recognizable symbols designed to warn about hazardous materials, locations, or objects, including electric currents, poisons, and other things. The use of hazard symbols is often re… read more »
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"NFPA 704 warning sign." Symbols.com. STANDS4 LLC, 2024. Web. 30 Dec. 2024. <https://www.symbols.com/symbol/nfpa-704-warning-sign>.
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