E-cylinders are used for delivery of fresh gases to the anesthesia machine in case of pipeline gas pressure failure.
E-cylinders uses the pin index safety system (PISS) that ensures the correct placement of cylinders of a particular type of gas into the right location in the anesthesia machine.
| Gas | Cylinder Color (USA) | Full Tank Volume (L) | Full Tank Pressure (PSI) |
|---|---|---|---|
| Oxygen | Green | 660 | 2200 |
| Nitrous Oxide | Blue | 750 | 1590 |
| Air | Yellow | 625 | 1800 |
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