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The white "special notice" area can contain several symbols. The following symbols are defined by the NFPA 704 standard. OX: Oxidizer, allows chemicals to burn without an air supply (e.g., potassium perchlorate, ammonium nitrate, hydrogen peroxide). W: Reacts with water in an unusual or dangerous manner (e.g., caesium, sodium, diborane ...
Fire Diamond (NFPA 704) – Hazard symbol used by emergency personnel to identify the risks posed by hazardous materials; Hazmat – Solids, liquids, or gases harmful to people, other organisms, property or the environment
The fire triangle or combustion triangle is a simple model for understanding the necessary ingredients for most fires. [1] The triangle illustrates the three elements a fire needs to ignite: heat, fuel, and an oxidizing agent (usually oxygen). [2] A fire naturally occurs when the elements are present and combined in the right mixture. [3]
ISO 7010 states on all symbols with a first aid cross, that it "may be replaced with another element appropriate to cultural requirements". In countries with a Muslim -majority population, an appropriate symbol is the crescent .
Hazard symbols may vary in color, background, borders, or accompanying text to indicate specific dangers and levels of risk, such as toxicity classes. These symbols provide a quick, universally understandable visual warning that transcends language barriers, making them more effective than text-based warnings in many situations.
Division 1.3: Substances and articles which have a fire hazard and either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard. Note: The asterisks are replaced by the class number and compatibility code Divisions 1.1–1.3
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Beyond safety signs, EEC Directive 92/58/EEC standardize markings for fire equipment, acoustic signals, verbal and hand signals for vehicle movements. [10] In 2013, the European Union adopted ISO 7010 to replace the symbols provided previously, adopting them as European Norm (EN) ISO 7010, standardizing symbols among the EU countries. Prior to ...