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  2. ISO 7010 - Wikipedia

    en.wikipedia.org/wiki/ISO_7010

    ISO 7010 is an International Organization for Standardization technical standard for graphical hazard symbols on hazard and safety signs, including those indicating emergency exits. It uses colours and principles set out in ISO 3864 for these symbols, and is intended to provide "safety information that relies as little as possible on the use of ...

  3. Excessive heat warning - Wikipedia

    en.wikipedia.org/wiki/Excessive_heat_warning

    An excessive heat warning is a notice issued by the National Weather Service of the United States within 12 hours of the heat index reaching one of two criteria levels. In most areas, a warning will be issued if there is a heat index of at least 105 °F (41 °C) for more than three hours per day for two consecutive days, or if the heat index is greater than 115 °F (46 °C) for any period of time.

  4. Hazard symbol - Wikipedia

    en.wikipedia.org/wiki/Hazard_symbol

    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.

  5. Safety sign - Wikipedia

    en.wikipedia.org/wiki/Safety_sign

    A 'Danger' sign from the 1914 Universal Safety Standards. One of the earliest attempts to standardize safety signage in the United States was the 1914 Universal Safety Standards. [1] The signs were fairly simple in nature, consisting of an illuminated board with "DANGER" in white letters on a red field. [1]

  6. Severe weather terminology (United States) - Wikipedia

    en.wikipedia.org/wiki/Severe_weather_terminology...

    Extreme cold warning NPW – Dangerously cold air temperatures and/or wind chills, capable of causing life-threatening medical conditions (such as severe frostbite and hypothermia) or death associated with accelerated heat loss from exposed skin, are forecast to meet or exceed locally defined warning criteria for more than three hours over at ...

  7. NFPA 704 - Wikipedia

    en.wikipedia.org/wiki/NFPA_704

    First "tentatively adopted as a guide" in 1960, [1] and revised several times since then, it defines the "Safety Square" or "Fire Diamond" which is used to quickly and easily identify the risks posed by hazardous materials. This helps determine what, if any, special equipment should be used, procedures followed, or precautions taken during the ...

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  9. Physical hazard - Wikipedia

    en.wikipedia.org/wiki/Physical_hazard

    A nail gun-related injury. Machines are commonplace in many industries, including manufacturing, mining, construction and agriculture, [11] and can be dangerous to workers. . Many machines involve moving parts, sharp edges, hot surfaces and other hazards with the potential to crush, burn, cut, shear, stab or otherwise strike or wound workers if used unsafely