Section 06 Products of the chemical or allied 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare earth metals, of radioactive elements or isotopes 28 16 Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium 28 16 40 Oxides, hydroxides and peroxides, of strontium or barium Commodity Code Description 28 16 40 00 Oxides, hydroxides and peroxides, of strontium or barium
