Ethene 3.5 Chemical formula: C2H4 Valve fitting according DIN 477: Nr. 1 Gas cylinder size: 3,7 kg, 18,5 kg Downloads Material safety data sheets Sicherheitsdatenblatt (PDF, 140 KB)material safety data sheet (PDF, 135 KB) Standard specifications Spezifikation (PDF, 161 KB)standard specification (PDF, 159 KB)