“…The current OECD/NEA project SFP investigates the performance of full-scale 17x17 PWR assemblies in air with regard to thermal-hydraulic and ignition phenomena 7 . A number of previous bundle air ingress tests have been performed under a range of configurations and oxidizing conditions, namely CODEX AIT-1, AIT-2 8 , QUENCH-10 9, 10 and PARAMETER 11 -SF4 12 . The accumulated data have demonstrated that air oxidation of cladding is a quite complex phenomenon governed by numerous processes depending on the oxidizing conditions, the oxidation history and the details of the cladding material specification.…”