United States · Heading· 11 subheadings· 0 codes

2804Hydrogen, rare gases and other non-metals

Subheadings (6-digit WCO)

280410Hydrogen→280421Argon→280429- - Other→280430Nitrogen→280440- Oxygen→280450- Boron; tellurium→280461Containing by weight not less than 99.99% of silicon→280469Other→280470- Phosphorus→280480Arsenic→280490Selenium→
United States HS 2804 · Hydrogen, rare gases and other non-metals · Treayo