[GSO 10532-2014, 2-toifa] : metan [CH4] (1,84%) + azot [N2] (rez.) (hajm ulushi), 5 dm3 Silindr: 5-150U [karbonli po'lat, 5 dm3]; Valf: W19.2 Sp21.8 [guruch, DIN 6]