Non-ionizing radiation can also reach potentially dangerous levels, but this warning sign is different from the trefoil ionizing radiation warning symbol.
2.
I got a reply from ISO about the copyright status on the new IAEA / ISO ionizing radiation warning symbol ( : Image : New _ radiation _ symbol _ ISO _ 21482 . svg ).
3.
On February 15, 2007, two groups the International Atomic Energy Agency ( IAEA ) and the International Organization for Standardization ( ISO ) jointly announced the adoption of a new ionizing radiation warning symbol to supplement the traditional trefoil symbol.
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