All DFT measurements should be measured. Only the final
                           DFT measurements need to be measured and reported for compliance with
                           the PSPC by the qualified coating inspector. The Coating Technical
                           File may contain a summary of the DFT measurements which typically
                           will consist of minimum and maximum DFT measurements, number of measurements
                           taken and percentage above and below required DFT. The final DFT compliance
                           with the 90/10 practice should be calculated and confirmed, see PSPC
                           2.8.