The interesting feature of this standard is that it is completely unnecessary and foolish. LED lamps of the plain variety do not flicker with mains changes, they give a constant light output across the rated voltage range by design. Dimmable ones may flicker slightly with particular switching phases, but even these are designed to change brightness fairly slowly in cycle terms and one will probably not notice a slight change in brightness.
Not all are quite so immune ... when we were on the DNO generator the other day all the dimmable LEDs in the front room started flashing randomly for a few minutes just before the generator died ... presumably it was stuttering just before running out of fuel. Nothing noticeable on any other (non-dimmable) lights or other electronic equipment (well not until the generator finally stopped).
