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The symbol consists of a triangle, with a black border, and a background of Pantone red No. 187, the symbols are black, with a white outline. While yellow is specified in ISO 3864-4 for usage with warning symbols and messages, it was found that red was more effective at conveying "danger" than yellow, which was viewed as the less serious ...
The new symbol, to be used on sealed radiation sources, is aimed at alerting anyone, anywhere to the danger of being close to a strong source of ionizing radiation. [13] It depicts, on a red background, a black trefoil with waves of radiation streaming from it, along with a black skull and crossbones, and a running figure with an arrow pointing ...
Bamboo sign; Banana sign; Bat wing appearance; Bear paw sign; Beveled edge sign; Bird of prey sign; Bite sign; Black pleura sign; Blade of grass sign (also known as Flame sign); Blumensaat's line
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The roentgen or röntgen (/ ˈ r ɛ n t ɡ ə n,-dʒ ə n, ˈ r ʌ n t-/; [2] symbol R) is a legacy unit of measurement for the exposure of X-rays and gamma rays, and is defined as the electric charge freed by such radiation in a specified volume of air divided by the mass of that air (statcoulomb per kilogram).
[59] 2007 ISO radioactivity danger symbol. The red background is intended to convey urgent danger, and the sign is intended to be used in places or on equipment where exceptionally intense radiation fields could be encountered or created through misuse or tampering.
Hazard symbol; Pipe marking#ISO 20560-1 & -2 Safety information for piping systems; ISO 3864 – Safety colors and safety signs; ISO 7001 – Public Information Symbols; ISO 21482 – A separate standard for a specific radiation safety sign for specific applications; ANSI Z535 – The United States national standard for safety information