ISO 21482

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Warning of dangerous radioactive substances

The ISO 21482 standard specifies a warning notice for hazardous radioactive substances that was co-designed by the International Atomic Energy Agency ( IAEA) .

The symbol is a red triangle with the symbol for radioactivity at the top, from which rays emanate downwards left and right, at the bottom left there is a skull and on the right there is a person walking towards the edge of the shield and an arrow pointing to the right (to the outside of the shield). The red background color was chosen because children stated that red and not yellow (as with the previous warning sign) expresses danger. In addition, some children thought the previous radiation warning sign was a propeller . The Gallup Institute had the new symbol rated by 1,650 people and then recommended it.

The new warning does not replace the previous symbol, but complements it. In contrast to the previous symbol, the new warning sign is also intended to make people who are unfamiliar with radioactivity and its abstract danger symbol aware of the immediate fatal danger they are in and to encourage them to flee. The new shield was developed after some fatal accidents occurred in developing countries because people removed strong radioactive emitters from their shields (for example the Goiânia accident , Brazil, 1987 or the nuclear accident in Samut Prakan , Thailand, 2000). The new warning sign is therefore not attached to the shielding containers like the previous one, but directly on the dangerous radioactive emitters of the highest radiation categories 1, 2 and 3. On weak sources such as the shielding containers, only the previous symbol is still shown, as they are not immediate Pose danger. Rooms in which there are radioactive substances or X-ray devices will also continue to be marked with the old symbol.

In Germany, the warning sign has neither been adopted into a national standard nor inserted into the accident prevention regulations. It is also not included in the draft of the new version of DIN 4844-2, which regulates warning signs. In Austria it is standardized in the ÖNORM ISO 21482.

See also

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  1. IAEA Flash Video

Web links