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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.
Alternative sign. Division 2.2 Toxic gases – Gases which: are known to be so toxic or corrosive to humans as to pose a hazard to health; or; are presumed to be toxic or corrosive to humans because they have an LC 50 value equal to or less than 5000 ml/m 3 (ppm). e.g. hydrogen cyanide. Division 2.3
The stickers usually contained phone numbers of poison control centers that may give guidance if poisoning has occurred or is suspected. Usually, Mr. Yuk stickers carried the national toll-free number 1-800-222-1222. In some areas, local poison control centers and children's hospitals issue stickers with local numbers, under license.
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The skull and crossbones has long been a standard symbol for poison. In 1829, New York State required the labeling of all containers of poisonous substances. [8] The skull and crossbones symbol appears to have been used for that purpose since the 1850s. Previously a variety of motifs had been used, including the Danish "+ + +" and drawings of ...
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These signs include: Fever, chills, neck pain, fatigue, inability to look at bright light, or inability to eat or drink. “If you have those symptoms, it’s time to go to the emergency room.
[22] [23] As a method of execution, poison has been ingested, as the ancient Athenians did (see Socrates), inhaled, as with carbon monoxide or hydrogen cyanide (see gas chamber), injected (see lethal injection), or even as an enema. [24] Poison's lethal effect can be combined with its allegedly magical powers; an example is the Chinese gu poison.