23-23 23-24 23-25 23-26 23-27 23-28 23-29 23-30 23-31 23-32 23-33 23-34 23-35 23-36 23-37 Dehumidification Units Multiple Belts and Belt Guards Electric Motors and Starters Vibration Insulation Sheet Metal Work Workmanship Vents Protection Against Electrolysis Gauges of Metal Volume Dampers Automatic Relief or Backdraft Dampers Fusible Link Dampers Screens Access Doors Metal Roof Ventilators Flexible Connection Duct Insulation Flashings Air Outlets Special Material for Duct Construction for Scientific Structures Cleaning Operation and Maintenance Instructions Testing and Charging Regulating and Adjusting SECTION SANITARY SEWERS 24-01 24-02 24-03 24-0} 24-05 24-06 24-07 24-08 24-09 24-10 General Requirements Materials Pipe Laying Alignment Branch Connections Jointing Manholes Cleanouts Corrugated Metal Pipe Outfall Sewers eps COO ON NOU FW) Wo Protection Materials - General Materials and Equipment Piping - General Connections to Equipment Freon Piping and Valves Pipe Covering Fan Equipment Air Filters MMMM MMMM N Mr WWW WW WOW) Ud 23-05 23-06 23-07 23-08 23-09 23-10 23-11 23-12 23-13 23-14 23-15 23-16 23-17 23-18 23-19 23-20 23-21 23-22