From the BEA site:
It appeared, however, that airplane certification standards did not cover all of the conditions that could be encountered in clouds at high altitude. The BEA made a recommendation aimed at better defining these conditions and consequently reviewing the certification criteria, in particular those of Pitot tubes. The European Aviation Safety Agency (EASA) took this recommendation into account and is undertaking the corresponding research.
Didin't some of the certification standards date back to 1947 ?
Is there any news about what's going on with this particular issue at the moment?
AF447 was not the only flight affected by this issue.