2 Installation
2.6 Gas supply plumbing
20
GC-2010 Plus
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 pressure
reducing valves and pipes that are free of contamination from impurities that lower the purity
of the supply source. If the purity of the supply gas connected to the GC is low, the sensitivity
or stability is not guaranteed even when a high purity gas cylinder is used. Connect the gas
filter right before connecting gases to the GC in order to remove any impurities. The filter's
removal ability eventually wears off. The filter requires periodical maintenance service
because a filter saturated with impurities contaminates the GC. 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.
To Next Page
Loading...
Need help?
General
