RestekAirgas Standard, 5% ea. of Carbon Monoxide, Carbon Dioxide, and Nitrogen, 4% of Methane and Hydrogen, 2.5% Oxygen in helium, 14 LSKU · 34543
RestekAirgas Standard, 7% Carbon Monoxide, 4% Oxygen, 15% Carbon Dioxide and 4.5% Methane in N2, 14 LSKU · 34515
RestekAirgas Standard, C1-C6 n-Paraffins: 1000 ppm ea. of Methane, Ethane, Propane, Butane, Pentane, Hexane in Helium, 14 LSKU · 34524