TITLE 77: PUBLIC HEALTHHome
PART 890 ILLINOIS PLUMBING CODE
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SECTION 890.1750 SERVICE SINKS/LAVATORY
Section 890.1750 Service Sinks/Lavatory
a) Service sinks/lavatories shall be either stainless steel, cast iron complying with ASME/ANSI A112.19.1M-1987, or vitreous china complying with ASME/ANSI A112.19.2M-1990. Stainless steel service sinks/lavatories shall be fabricated of Type 304 stainless steel with the exterior surfaces polished; all exposed welds are to be ground smooth and there shall be no visible voids, seams or crevices.
b) Security Sink/Lavatory shall include the following features; self-closing valve set with integral stops, gate or globe valves, reversible union inlets and plain-end filler spout; grid strainer drain, elbow waste with a two (2) inch female connection. Timing of control valves shall be field adjustable from five (5) to 40 seconds, and shall not require shutting off the supply lines.
c) The waste assembly shall conform with Section 890.410(g)(1), and be of brass, copper or bronze construction.
d) Drains with mechanical air vents are prohibited.