Quote:
Originally Posted by bertoni
That's true, but I'm still a bit skeptical. I don't know of any alloys of tin and iron. Tin might show up in solder, though. The reading could be showing some form of interference, which is an issue with ICPP.
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Agreed that tin contamination in the metallic objects in the sand bed is unlikely....
Tin plated or tin alloyed ferrous metal (magnetic) is unlikely/uncommon..
But.. Guess what float glass is made on.. Yes.. a molten bed of tin..
Guess what glass has thats often overlooked by tank manufacturers.. Yep.. a tin residue side and a non-tin side..
Guess whats often overlooked in tank building.. Yep.. identifying the tin side with UV light,etc.. and putting that side out..
High tin levels in ICP testing is quite common and IMO very likely from the glass and the tin residue left on it from manufacturing..