It would be extremely helpful if you posted a link on the specific shortwave UV light that you used, for there's a lot of bad information out there about using a UV light to detect the tin side, some saying a "black" light which is a much higher nm wavelength, what nm is that light? 254nm? This is so far what I've found to be considered shortwave UV, but your demo was very clearly showing the difference. I must not have a strong enough 254nm light or there is too much light still in the room.
I am confused: "Why do we want to know where the tin side is? The tin side doesn't devitrify.... fire with tin side up" - isn't this in stark contrast to the statement on the web site ahjs dot biz slash Tindicator dot html : "A tiny amount of it [tin] is absorbed into the glass structure on the underside. That side of the glass is more liable to devitrification...". What is true now?
It would be extremely helpful if you posted a link on the specific shortwave UV light that you used, for there's a lot of bad information out there about using a UV light to detect the tin side, some saying a "black" light which is a much higher nm wavelength, what nm is that light? 254nm? This is so far what I've found to be considered shortwave UV, but your demo was very clearly showing the difference. I must not have a strong enough 254nm light or there is too much light still in the room.
Thanks, Gil. I had invested in a tin scope but wasn't sure how to use it. Just the info I needed.
Lavae at Casa Gecko Glass in Costa Rica
I am confused:
"Why do we want to know where the tin side is? The tin side doesn't devitrify.... fire with tin side up" - isn't this in stark contrast to the statement on the web site ahjs dot biz slash Tindicator dot html : "A tiny amount of it [tin] is absorbed into the glass structure on the underside. That side of the glass is more liable to devitrification...".
What is true now?
What brand and manufacturer of the UV light are you using in the video?
I have read instructions before but never realized the light has to shine in from the side!
Really? Not tin side down?
Why fire tin side down?
@@Fuse33433 To help prevent devit