Transformer Oil Diagnostic Analyses Standard

  • Moisture analysis – IEC 60814

  • Dielectric breakdown – IEC 60156

  • Acidity – IEC 60296

  • Interfacial surface tension (IFT) – ISO 6295

  • Dissipation factor and resistivity (DDF) – IEC 60247

  • Dissolved gas analysis (DGA) – IEC 60567 and IEC 60599

  • PCB tests – ASTM D4059

  • Furan analysis – IEC 61198

  • DBPC analysis ASTM D4768

  • Density – ASTM D4052

  • Viscosity – ASTM D445

  • Corrosive sulfur test – ASTM D1275B

  • Oxidation – IEC 61125

  • Sediment and sludge – AS 1883

  • Flash point – ASTM D3828

  • Pour point – ASTM D97

  • Particle count – NAS 1638 & ISO 4406

  • Wear metal analysis – ASTM D5185

  • Degree of polymerization – ASTM D4243