We engraved some items for a customer on stainless and they were happy with the results. However, their customer is aerospace and they want them to prove that the engraving is done to Aerospace standards and give the AS# for the requirements. They are asking if there's anything we can provide to them that proves our engraving is complaint with the spec. The spec calls for .0001"-.003" of an inch deep. Of course we an measure that, and even destructive test one to prove the depth, but they are looking for actual paperwork from us that meets the certification requirements. Since we're not ISO certified and don't have any of our tools calibrated, I'm stumped on what I can provide to satisfy the end client who wants us to "prove" it?
I know there are a number of people doing aerospace work on here, and I'm sure some of you have been asked about this before.