On Sat, 18 Jan 2020 16:11:01 -0500, KC JONES
wrote:

I've had a germicidal lamp more or less in storage for a number of
years, but recently brought it out to sterilize a room where a person
had been sick. However, I don't know if it still emits the germ killing
UVC spectrum. What's a quick way I could tell for sure? Thanks.

Ummm... perhaps a UV-C light meter? Something like this:
https://www.solarmeter.com/uvc-meters.html
https://youtu.be/6Jaic8OwzaU
Response is 246-262 nm with a UV-C pass filter.

More of the same:
https://www.ebay.com/sch/i.html?_nkw=uvc+light+meter
Typically $350 to $1,100. You might want to look into borrowing or
renting such a meter.



--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558