Standard Classification of Goods (SCG) 2000
- VI - Products of the chemical or allied industries
- 28 - Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- 2815 - Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium
- 28151 - Sodium hydroxide (caustic soda)
- 281511 - Solid
- 281512 - In aqueous solution (soda lye or liquid soda)
- 281520 - Potassium hydroxide (caustic potash)
- 28152010 - Solid
- 28152020 - In aqueous solution
- 281530 - Peroxides of sodium or potassium
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