Acetylene 2.0 Chemical formula: C2H2 Valve fitting according DIN 477: Nr. 3 Gas cylinder size: 1,5 kg, 3,0 kg, 6,3 kg Downloads Material safety data sheets Sicherheitsdatenblatt (PDF, 350 KB)material safety data sheet (PDF, 360 KB) Standard specifications Spezifikation (PDF, 134 KB)standard specification (PDF, 135 KB)