The symbol for biohazard substances (without the black-yellow triangle.)
<ul><li>Original by <a href="//commons.wikimedia.org/wiki/User:Silsor" title="User:Silsor">Silsor</a></li>
<li>Colour change by <a href="//commons.wikimedia.org/wiki/User:Lokal_Profil" title="User:Lokal Profil">Lokal_Profil</a></li></ul>
Modified from <a href="//commons.wikimedia.org/wiki/File:Biohazard_symbol.svg" title="File:Biohazard symbol.svg">Image:Biohazard symbol.svg</a>