Betekenis van:
helium

helium
Zelfstandig naamwoord
  • bepaald edelgas
  • a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)

Synoniemen

Hyperoniemen


Voorbeeldzinnen

  1. Helium, neon, argon, krypton, xenon and radon are noble gases.
  2. Helium
  3. Helium He
  4. Helium-3
  5. (40 ± 2 % hydrogen, balance helium)
  6. consumables (e.g. power and helium),
  7. Operating conditions: carrier gas: hydrogen or helium
  8. (40 ± 1 per cent hydrogen, balance helium)
  9. helium carrier gas flow rate: 20 ml per minute.
  10. purified hydrogen (and mixture containing helium): (purity ± 1 ppm C, ± 400 ppm CO2),
  11. Example of applicable conditions using a split injector: Carrier gas: helium
  12. Note:1C232 does not control a product or device containing less than 1 g of helium-3.
  13. Note: 1C232 does not control a product or device containing less than 1 g of helium-3.
  14. Process systems for separating UF6 from carrier gas (hydrogen or helium) to 1 ppm UF6 content or less, including:
  15. Process systems for separating UF6 from carrier gas (hydrogen or helium) to 1 ppm UF6 content or less, including: