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HS 28.04 — Hydrogen, rare gases and other non-metals

11 subheadings · Chapter 28: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes

Subheadings

28.04.10
Hydrogen
→
28.04.21
Gases, rare; argon
→
28.04.29
Gases, rare; other than argon
→
28.04.30
Nitrogen
→
28.04.40
Oxygen
→
28.04.50
Boron; tellurium
→
28.04.61
Silicon; containing by weight not less than 99.99% of silicon
→
28.04.69
Silicon; containing by weight less than 99.99% of silicon
→
28.04.70
Phosphorus
→
28.04.80
Arsenic
→
28.04.90
Selenium
→
← Chapter 28: Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes