(a) As used in this chapter,
Fixture means a separate free-standing unit to which water service is attached. Each wash bowl, bathtub, sink, toilet or other separate unit of whatever kind, shall constitute a separate fixture.
(b) The definitions contained in the International Building Code, the International Residential Code, the Illinois Plumbing Code, the National Electrical Code and the International Mechanical Code, as adopted in Chapters 1420, 1422, 1424, 1426 and 1428 of this Building and Housing Code, respectively, are hereby incorporated into and made a part of this chapter.
(c) The definitions contained in Section 1260.08 of the Planning and Zoning Code are hereby incorporated into and made a part of this chapter.