1 Installation
1.3 Gas Supply Plumbing
9
GC-2014
Q High pressure gas cylinder precautions
General precautions are provided below.
Consult state and local regulations for specific precautions.
Keep gas cylinders away from the lab, preferably outdoors, but not exposed to direct sun-
light. The area must be well-ventilated. Use tubing to bring the gases to the lab.
The temperature of gas cylinders must not exceed 40 °C. Flammable items must be kept at
least 2 m from a gas cylinder.
When using high pressure gases, pay strict attention to ventilation, and perform daily leak
checks. In particular, when using flammable gases (such as hydrogen), never smoke or
allow open flame within 5 m of the equipment. Fire extinguishers must be present.
Secure gas cylinders firmly with cylinder clamps so they cannot fall over. Use oil-free pres-
sure valves only. Never use tubing which has contacted oil. When finished with the gas,
tighten the main valve of the cylinder immediately.
WARNING
HIGH PRESSURE
Gas cylinders are under high pressure. When handling gas cylinders,
instruction and safety measures provided by the gas supplier must be
strictly observed to prevent accidents.
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