Evaporated barium film getters are heavily relied upon by the TV tube industry to provide the required low−operating pressures and low−partial pressures of gases which are deleterious to cathode operation and life. The studies reported here, utilizing nitrogen doped getters, show that while they are effective for nitrogen, carbon monoxide, carbon dioxide, and oxygen, the getters themselves are a major source of methane which is not sorbed. The capacity for carbon monoxide, the customary test gas for such getters, is found to agree with manufacturers’ data. After saturation with carbon monoxide, comparable residual capacities remain for carbon dioxide and oxygen. The methane evolved during flashing of the getters is attributed to hydrogen and carbon impurities which are found in the unfired getter material by independent analyses.