Yellow UV glasses?

[Deleted User]

If I wanted to use a UV torch to look for "biological contamination"
_pale_ , as in CSI, would any pair of yellow safety glasses work, or would I need special ones?

unforeseen

UV is normally used to kill biological contamination.

coffeehound

They work better with The Who playing in the background. (Sorry, no idea.)

neilmcl

Bedsit_Bob wrote: »

If I wanted to use a UV torch to look for "biological contamination"
_pale_ , as in CSI, would any pair of yellow safety glasses work, or would I need special ones?

The reason you see forensic specialists using tinted glasses is two-fold. Firstly they offer some protection against the UVA light emitted from the UV torch or black light but more importantly they use different coloured lenses to enhance the fluorescence and help determine specific substances. Most retail black light torches are a weak source of UV so you won't really need that much protection.

chrisw

You don't really need yellow glasses.

Urine will glow in the light of the torch, blood needs spraying with a fluorescent dye such as luminol to show up.

Here's a site which explains how UV works:-

https://www.quicktest.co.uk/uv.htm

[Deleted User]

I installed some UV LEDs into a head torch, and the effect on my Vaseline Glass bowl in pretty spectacular. :cool:

coffeehound

Nice. Is that the kind of glass that contains uranium?

[Deleted User]

coffeehound wrote: »

Is that the kind of glass that contains uranium?

Uranium Oxide actually, but yes.

I bought it to test my Geiger counter.

John_Gray

Bedsit_Bob wrote: »

I bought it to test my Geiger counter.

Clearly a First World Problem! :cool: :rotfl:

coffeehound

Have you tried it on Brazil nuts? Wonder if they are active enough to noticeably raise the background count ..

[Deleted User]

John_Gray wrote: »

Clearly a First World Problem! :cool: :rotfl:

You won't be laughing after the reactor meltdown/nuclear strike.