Investigation of:
isolating fluids (mineral oil, synthetic ester, natural ester, silikon oil)
gases

• Dissolved Gas Analysis (DGA), DIN EN IEC 60567:2024-09
  
• composition of free gases (Buchholz gases), DIN EN IEC 60567:2024-09
• Analyse of gaseous fuels and other gases, DIN EN 51872-04:1990-06
  
• Water, DIN EN 60814:1999-03
  
• Breakdown voltage, DIN EN IEC 60156:2025-09
  
• Dielectric dissipation factor, DIN EN 60247:2005-01
  
• Acidity, DIN EN 62021- Part 1:2004-06 or Part 2:2008-04 or Part 3:2015-05
  
• Interfacial tension, ASTM D971:2020
  
• Interfacial tension, DIN EN IEC 62961:2019-07
  
• Color, DIN ISO 2049:2001-06
  
• Appearance, DIN EN IEC 60296:2022-12
  
• Sediment and mud, DIN EN IEC 60422:2025-12, Attachment E
  
• corrosive sulfur acc. to , DIN EN 62535:2009-09
  
• many other parameters (on demand) possible
  

Some test methods can also be carried out according to an older revision status of the respective standard (see Liste aller Prüfverfahren im flexiblen Akkreditierungsbereich).

• Sampling, also in the case of faults
• Complete evaluation of the gas balance under normal operating conditions and under fault conditions
• Consulting services and training schemes with regard to optimum transformer monitoring