This section shall apply to stand-alone
and multipurpose wet-pipe sprinkler systems that do
not include the use of antifreeze. A multipurpose fire sprinkler
system shall provide potable water to both fire sprinklers and
plumbing fixtures. A stand-alone sprinkler system shall be
separate and independent from the potable water distribution
system. A backflow preventer shall not be required to separate
a stand-alone sprinkler system from the water distribution
system where the sprinkler system material is in accordance
with the requirements of Section 604.0.