Whilst the thread has crept into definitions off approach bans and even extended into the planning stages on the ground, the original question was "approach ban other than 1000 HAT'" There are airports in the World where, the approach will be "banned" with no relation to RVR but in relation to other climatic considerations, high winds, high clouds etc. FNC has a habit of banning approaches if the winds are outside the mandatory limits for the various reporting points, airfields in Nepal where a visual turn point onto finals must be visable at high levels etc. I'm not sure about every airfield in the World though!