The provisions of this article shall not apply to fixtures installed
prior to the effective date of the adoption which are removed and
relocated to another room or area of the same building after the effective
date of this article; nor shall they apply to fixtures which have
been ordered by or in the inventory of contractors or others before
the effective date of this article; nor shall they apply to safety
showers and aspirator faucets which, in order to perform a specialized
function, cannot meet the standards specified.