• Tired of adverts on RWI? - Subscribe by clicking HERE and PMing Trailboss for instructions and they will magically go away!

RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-19445

#156479
PartsReader 03338
Participant

Case 30 — Crystal reflections: why a dark patch is not a coating test

A dark area appears at an oblique angle in a single photograph. Does that establish a coating difference?

Exercise RWI-19445/30: address this question within its stated limits.