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ANSI/ASHRAE Standard 217-2020
Non-Emergency Ventilation in Enclosed Road, Rail, and Mass Transit Facilities
Provides minimum ventilation requirements for ventilation systems within enclosed transportation facilities during non-emergency operating conditions. Applies to enclosed transportation facilities consisting of road tunnels, railway tunnels, mass transit tunnels, and mass transit stations. Dual units of measurement.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]
