Yup, everyone else's threshold is 150ng, NFL is still using 15ng, which is the old standard that the other organizations realized was unreasonable and somewhat ridiculous. Problem is, in return for keeping up with the times, the NFL wanted the NFLPA to sign off on them being the judge, jury and executioner wrt HGH penalties. The players smartly refused, so the NFL refused to adopt a change the other bodies pbmax mentioned have all decided is better.
Gordon is the collateral damage, but I can't help but feel like he was doomed anyways with the DUI he racked up while this was going on.