The glyph for U+2623 should be revised. The international biohazard symbol is well-defined and subject to little variation. In particular, the "lobster claws" pointing to 12:00, 4:00 and 8:00 should be perfectly round, or almost so. The glyph published in the Unicode Standard looks more like a bird's-eye view of three dolphins feeding.
For a good rendition of U+2623, see:
http://www.subvertise.org/details.php?code=213
minus the enclosing triangle.
-Doug Ewell
Fullerton, California
