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.