Question
Identify the Cylinder as shown in the image
A. Oxygen
B. Helium
C. Nitrous Oxide
D. Carbon Dioxide
Show Answer
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Correct Answer » B Explanation |
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Colour coding of Gas cylinders
Colour coding of Gas cylinders (for UK and ISO):
| Substance | Gas/vapour | Symbol | Colour coding Cylinder | Colour coding Shoulder |
|---|---|---|---|---|
| Oxygen | Gas | O2 | Black | White |
| Nitrous oxide | Vapour | N2O | Blue | Blue |
| Entonox | Gas and Vapour | N2O/O2 | Blue | White/Blue |
| Air | Gas | AIR | Black | White/Black |
| Carbon dioxide | Vapour | CO2 | Grey | Grey |
| Helium | Gas | He | Brown | Brown |