On February 14, 2011, the Joint Research Centre (JRC) announced the creation of the first European repository of nanomaterials. According to JRC, the repository contains most types of nanomaterials that are currently assumed to be used in significant volumes in consumer products. The materials will be used as a reference point by laboratories that carry out safety assessments on nanomaterials, to make sure that their results are comparable to those of other laboratories. JRC states that this responds to a need expressed by experts in international standardization organizations. The new repository includes, among other materials, carbon nanotubes, silver nanoparticles, titanium dioxide, cerium oxide, zinc oxide, bentonite, gold, and silicon dioxide.