In laboratory services and testing engineering, several accredited laboratories with a wide range of services are active in the company. In heavy current electro technical engineering, a high/very-high-voltage testing station is active in numerous specific methods and even tests for oils. In air protection, laboratories for emissions and immissions laboratories are active. In physical methods, a pressure and a temperature calibration laboratory is active. In analysis of fuels, including solid residuals and including the evaluation of obtained samples from an emissions source, the laboratory is active.