On Tue, 29 Nov 2011 14:38:57 -0700, Chris J. Myers wrote:
> there is not an agreement on Avogadro's precise value, so it should be
> the case that the value intended by the modeler is included in the
> model as the conversion factor.
The L3 spec states the exact value that the csymbol for Avogadro and the unit symbol "avogadro" are assumed to take!