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1305.2 Minimum Flow Rates
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Medical gas and vacuum systems shall be capable of supplying the flow rates listed in Table 1305.2.
TABLE 1305.2
MINIMUM FLOW RATES (cubic feet per minute)
MINIMUM FLOW RATES (cubic feet per minute)
| MEDICAL SYSTEM | FLOW RATE |
|---|---|
| Oxygen | .71 CFM per outlet1 |
| Nitrous Oxide | .71 CFM per outlet1 |
| Medical Compressed Air | .71 CFM per outlet1 |
| Nitrogen | 15 CFM free air per outlet |
| Vacuum | 1 SCFM per inlet2 |
| Carbon Dioxide | .71 CFM per outlet1 |
| Helium | .71 CFM per outlet |
For SI units: 1 cubic foot per minute (CFM) = 0.47 L/s
Notes:
1 A room designed for a permanently located respiratory ventilator or anesthesia machine shall have an outlet capable of a flow rate of 6.36 CFM (3.0 L/s) at the station outlet.
2 For testing and certification purposes, individual station inlets shall be capable of a flow rate of 3 SCFM (1.4 L/s), while maintaining a system pressure of not less than 12 inches of mercury (41 kPa) at the nearest adjacent vacuum inlet.
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