SPECTRA

Class [001]
High purity and speciality gases and gas mixtures for commercial purposes, gases for electronics and semiconductor manufacturing, gases for detection, calibration and testing, protective and shielding gases, gases for the treatment and machining of materials, namely: nitrogen, oxygen, carbon dioxide and carbon monoxide, ammonia, saturated and non-saturated hydrocarbon gases, hydrocarbon compounds, hydrogen, helium, neon, argon, krypton, xenon, nitrous oxides, ammonia, hydrogen compounds, volatile organic compounds, chlorine and fluorine and gaseous compounds containing chlorine and fluorine, nitrogen compounds, ozone, halogens, halogen compounds, boron, silicon and sulphur compounds, isotopes of the aforesaid gases, as well as mixtures of the aforesaid gases.