Insulating oil experts laboratory analysis. Power transformers diagnostics and aging evaluating, using DGA, furanic compounds analysis and others tests. ACS was established in October 1997, with major focus in service and consulting in the insulating materials areas and electrical equipments maintenance. The ACS LABORATORIOS is an accreditaded laboratory in ISO/IEC 17025:2005 (CRL 0976), to perform the analisys of PCB according to the IEC 61619:1997 method, NBR 13882:2013 method, and some other analysis. The objective of our laboratory is to release results with total quality and assurance. Our commitment can be seen throughout the analysis procedure, starting from sampling and ending on releasing and monitoring the results.