Re: [CAD_CAM_EDM_DRO] re: killing bacteria

Available from many electricial distb's also known as germicide lamps.

Tube is quartz not glass as glass will not transmit it UV output.

Also used to erase EPROMS, the ones that have the quartz windows.

Mine is a Sylvania G15T8 Germicide, use it on EPROMS in an old push to start
fixture.

Expensive because of the quartz tube. $ 18-25 10 years ago.

Hugh

----- Original Message -----
From: Elliot Burke <elliot@...>
To: CAD_CAM_EDM_DRO <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, April 30, 2001 8:32 AM
Subject: [CAD_CAM_EDM_DRO] re: killing bacteria


> A standard way of killing bacteria in liquids is to use short wavelength
UV:
> a bacteriacidal (?) lamp. These are little mercury vapor tubes, with no
> fluorescent lining. They efficiencly turn electrical power into 257 nm
> wavelength radiation, which kills just about anything. Don't look at them
> directly, or let the radiation contact you! They also have a green and a
> few other Hg line outputs, so you can seem when they are running. A UV
> absorbing glass or plastic is enough protection, or anything opaque.
> They should be available by special order at lighting distributors.
> Electrically they are the same as a fluorescent lamp, and so will start
and
> run in a normal fixture.
>
> My guess is that these should kill any bacteria, if the liquid is at all
> transparent.
>
> If not, try ozone.
>
> The UV or ozone might break down the organics in you coolant.
>
> Elliot Burke
>
>
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