- a) Service sinks/lavatories shall be either stainless steel, cast iron complying with ASME A112.19.1/CSA B45.2, or vitreous china complying with ASME A112.19.2/CSA B45.1. 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 a self-closing valve set with integral stops, gate or globe valves, reversible union inlets and plain-end filler spout, or a grid strainer drain, elbow waste with a 2-inch female connection. Timing of control valves shall be field adjustable from five to 40 seconds and shall not require shutting off the supply lines.
- c) The waste assembly shall comply with Section 890.410(g)(1) and be of brass, copper or bronze construction.
- d) Drains with mechanical air vents are prohibited.
(Source: Amended at 38 Ill. Reg. 9940, effective April 24, 2014)