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Exhaust ventilation systems shall be provided in the following locations in accordance with the requirements of this section.
1. Fabrication areas. Exhaust ventilation for fabrication areas shall comply with requirements for Hazardous Use Units and Chicago Fire Code. Additional manual control switches shall be provided at exits from the fabrication area.
2. Workstations. A ventilation system shall be provided to capture and exhaust fumes and vapors at workstations.
3. Liquid storage rooms. Exhaust ventilation for liquid storage rooms shall comply with Section 18-28-502.7.1.1 and requirements for Hazardous Use Units and Chicago Fire Code.
4. HPM rooms. Exhaust ventilation for HPM rooms shall comply with Section 18-28-502.7.1.1 and other applicable codes.
5 Gas cabinets. Exhaust ventilation for gas cabinets shall comply with Section 18-28-502.7.2. The gas cabinet ventilation system is allowed to connect to a workstation ventilation system. Exhaust ventilation for gas cabinets containing highly toxic or toxic gases shall also comply with Sections 18-28-502.8.7 and 18-28-502.8.8.
6. Exhausted enclosures. Exhaust ventilation for exhausted enclosures shall comply with Section 18-28-502.7.2. Exhaust ventilation for exhausted enclosures containing highly toxic or toxic gases shall also comply with Sections 18-28-502.8.7 and 18-28-502.8.8.
7. Gas rooms. Exhaust ventilation for gas rooms shall comply with Section 18-28-502.7.2. Exhaust ventilation for gas cabinets containing highly toxic or toxic gases shall also comply with Sections 18-28-502.8.7 and 18-28-502.8.8.