Object: Electronic Auction - Hiring A Specialized Company, Without Dedicating Exclusive Labor, To Provide Calibration Services For Ionization Chambers And Electrometers, In Accordance With Authorization Issued By Casec/Ird/Dpd/Cnen/Ncti And The Technical Requirements Established By The Standards Of The National Nuclear Energy Commission (Cnen) And The National Institute Of Metrology, Quality And Technology (Inmetro), With Metrological Traceability To National Standards.