Order Of Services To Carry Out An Inspection Of A 4” Pipeline Between The Chièvres Depot (4Chd) And The Florennes Air Base (4Fla) By Means Of Intelligent Brushing (Intelligent Pigging, Ili) According To The Ultrasonic Method (Ut), Including The Provision Of A Temporary Storage Tank Of 70 M³ And The Transport Of The Collected Product.