Gas Mixture 3: C6+ without O2 10 liter cylinder for purchase with PO 24 DIN 477 HPBR DIN 14 connections Filling (150 000 hPa) Mixture 3 comprises the following components: (mol percent) Nitrogen 4 CO2 1,5 Methane 88,9 Ethane 4 Propane 1 i-Butane 0,2 n-Butane 0,2 neo-Pentane 0,05 i-Pentane 0,05 n-Pentane 0,05 n-Hexane 0,05