I had a generic BLB CFL in the past:
http://www.lighting-gallery.net/gallery/displayimage.php?pos=-48653 . It fell to the floor and broke. It really gave a UV radiation and made fluorescent things glow.
These are usually the incandescent blacklights that don't produces any UV radiation.
If your lamps really takes 35 mins to run-up, they are essentially EOL, as the nominal run-up of CFLs is 2-3 mins, and they usually gives a lot of light from the moment of switching on.
I've seen several Lelite CFLs in my private sport teacher house, and several generic 54W T5 in my hostel, starting dim and taking >10 mins to run-up, and have both ends completely black.