TARIC 2811.22.00.15 — Amorphous silicon dioxide (CAS RN 60676-86-0), -|in the form of powder -|of a purity by weight of 99,0|% or more -|with a median grain size of 0,7|μm or more, but not more than 2,1|μm -|where 70|% of the particles have a diameter of not more than 3|μm | TariffCodex