Illinois Society of Architects · Chicago · leaf 398
r Sing-le PipeSystem. Size of Pipe Feet of Pipe Number of %-inch in Inches Allowed Equi valents allowed % 30 2 y2 40 4 % 60 10 1 70 15 iVt 100 30 IVs 150 60 2 200 100 21/^ 250 200 3 300 300 4 450 500 Notes: Any ceiling 20 feet high or over musthave %-inch drops. In a residence or a flat building,… … If finer Qas Ranges were made^they would have been medin Park Castles
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
