js.b1 wrote:
On Jul 6, 9:28 pm, "neverwas" wrote:
For example, what makes you think your (former) tea towel
burnt with UV emissions?

That is a problem - most are aimed at cigarettes which I suspect
have a markedly different signature than a cotton tea-towel flame.

Ok, many thanks for the reply.

Flames give of UV. I would guess cigarettes give of relatively little UV.
In the early days of UV detectors, in public areas where smoking was banned,
the intention was to catch people lighting up using a lighter.