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oh you, Ea Nasir!
(lemmy.nz)
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this post was submitted on 03 Mar 2026
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Really Shitty Copper
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A community dedicated to making fun of Ea-Nasir, a Sumerian merchant circa 1750 BC, who sold exceptionally poor quality copper.
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The importance of optical emission spectrometers for highest-precision metals verification, and x-ray fluorescence spectrometers for quick hand-held metals verification
I worked at a pressure vessel manufacturer and we had what we called the "PMI gun"; basically a handheld spectrometer that would tell you the composition of whatever metal you pointed it at. They're relatively inexpensive from a business standpoint.
Maybe, but what major industry actually does that? I worked in medical devices with titanium and it was never even considered...
It depends on the customer. Medical devices aren't holding up anything heavier than a single person at most.
Every shop I've worked in that made stuff for various industries tracked heat numbers for materials that we used. Some customers didn't care, some customers wanted heat numbers, material test reports, and everything they would need to track a piece of material all the way back to the mill that made it.