Analysis of transformer oils For purposes of status monitoring and diagnosis we carry out precise analyses of transformer oils:    • in pursuance of IEC 60422 for insulation oils:      dielectrical breakdown voltage, dielectrical dissipation factor, interfacial surface      tension, appearance, acidity, total acidity and water content.    • furan analysis: status determination of fixed insulation (polymerisation level).    • PCB analyses If so desired we will also organise, in collaboration with selected partner companies, as needed:    • Gas-in-oil analyses (DGA): hydrogen, methane, carbon monoxide, carbon dioxide,      iacetylene, ethylene, ethane, etc. back