77 Ill. Adm. Code 890.1760
Sinks
Section 890
Section 890.1760Â Sinks
a)Â Â Â Â Â Â Â Â All sinks for food preparation or cleansing of utensils used
to prepare food shall be of stainless steel (Type 304) construction, including
framework and reinforcing.
b)Â Â Â Â Â Â Â Â All welds shall be ground smooth, and exterior surfaces
polished.
c)Â Â Â Â Â Â Â Â All sinks shall be provided with waste outlets at least one
and one-half (1 ½) inches in diameter. A crossbar, strainer, or other means
shall be provided to restrict the clear opening of the waste outlet. No
kitchen sink basket shall be less than three and one-half (3 ½) inches in
diameter.
d)Â Â Â Â Â Â Â Â Waste lines and water supply lines shall conform with Sections
890.130 through 890.1600.