Harmonised Commodity Description and Coding System (HS) - level 2 - Chapter |
28 |
Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes |
Harmonised Commodity Description and Coding System (HS) - level 4 - Article |
284210 |
Double or complex silicates of inorganic acids or peroxoacids, incl. aluminosilicates whether or not chemically defined (excl. inorganic or organic compounds of mercury whether or not chemically defined) |
Harmonised Commodity Description and Coding System (HS) - level 4 - Article |
284290 |
Salts of inorganic acids or peroxoacids (excl. of oxometallic or peroxometallic acids, double or complex silicates [incl. aluminosilicates whether or not chemically defined], azides, and inorganic or organic compounds of mercury) |