FROSIO Coating Inspector e-Learning - Preparation for the examination according to FROSIO Scheme for Surface Treatment 2 days of attendance (repetition and practical part) and 2 days of exams (last 2 days) / 2 days repetition (optional) About 7 weeks before the start of the presence phase, online seminars will be provided. These are scheduled once a week beginning at 6pm CET for about 1.5 hours.