Termékek a hopfen lupus (1)

Formula: He General Description: monoatomic, non-toxic, chemically inert gas, odorless, colorless and tasteless Gas purity and content of its controlled impurities(vol.%, ppmv) Brand 4.0 99,99% Brand 4.5 99,995% Brand 5.0 99,999% Brand 6.0 99,9999% Areas of use: Metallurgy - as an inert shielding gas for smelting pure metals; Welding industry - as an inert medium in arc welding; Food industry - as a packaging gas for food preservation; For gas-filled aircraft and weather probes and balloons in the entertainment industry; Breathing mixtures for deep-sea diving; Advertising - for filling gas discharge tubes; Nuclear power - as a coolant; Gas chromatography; Helium-neon lasers. Brand 4.0 Helium (He) 99.99% Neon Ne ⩽90.0 ppmv Nitrogen N2 ⩽20.0 ppmv Oxygen + Argon O₂+Ar ⩽6.0 ppmv Hydrogen H2 ⩽25.0 ppmv Amount of hydrocarbons ΣCₙHₘ ⩽5.0 ppmv Carbon monoxide + Carbon dioxide CO+CO₂ ⩽10.0 ppmv Moisture H2O ⩽20.0 ppmv Formula:He