In reading all the responses, its seems no one is complaining that there is anything wrong with Black being black, just that it is hard to do for some. My interpretation, which may be different from others, is that for some, they just cannot make it black, for whatever reason. For others, they donít think itís really needed and are unaware of it being any problem, but have not tested.
I have tested my safelights years ago but not to the extent that is now recomened, although I plan to test them again.
I have always accepted that if the darkroom is black and I cannot see any light no matter how long I wait, I have total darkness, or real black. Do those who know, as I do that total black is the standard, do I need to further test, to confirm what my eyes cannot see after extended times?