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The basic outline of the symbol is a plain trefoil, which is three circles overlapping each other equally like in a triple venn diagram with the overlapping parts erased. Reason This image is illistrative and infomrative, and enhances the encyclopdia by adding an element to Biohazard-related articles that can not be replaced by words alone.
modified symbol to remove overlap on inner arc: 16:21, 10 August 2021: 512 × 446 (1 KB) Vizorsols: adjust triangle, ISO 3864-4 coloring (RAL 1003) 01:07, 4 August 2021: 512 × 447 (1 KB) Vizorsols: removed pixel of whitespace at bottom: 01:06, 28 July 2021: 512 × 448 (1 KB) Vizorsols: Perfect symbol. There is likely room for optimization: 00: ...
Date/Time Thumbnail Dimensions User Comment; current: 01:58, 31 December 2021: 512 × 512 (866 bytes): Vizorsols: reverted needlessy rounded value: 03:16, 27 December 2021
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The international biohazard warning symbol as it appears in the Laboratory biosafety manual (Third edition) by the World Health Organization, Geneva 2004. Note that the sickles have blunt ends, not sharp ones. (Unlike most versions on the web) Blunt probably because sharp forms tend to print lousy images when stenciled.
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Add a one-line explanation of what this file represents. ... Yellow biohazard symbol on a red circle with a black border. Category:Hazard symbols: File usage.