Agilent Technologies ALS Handbuch Seite 53

Do not use copper tubing or thin-wall stainless steel tubing with liquid CO
WA R N I N G
harden at stress points and may explode.
Additional requirements for the liquid CO
• The tank must have an internal dip tube or eductor tube to deliver liquid
• Typical liquid CO
• Use 1/8-inch diameter heavy-wall stainless steel tubing for supply tubing.
• Coil and fasten the ends of the tubing to prevent it from "whipping" if it
• Do not install a pressure regulator on the CO
• Do not use a padded tank (one to which another gas is added to increase
GC, GC/MS, and ALS Site Preparation Guide
CO instead of gas (see the figure below).
2
2
at a temperature of 25 °C.
The tubing should be between 1.5 and 15 m (5 and 50 feet) long. (Agilent
part number 7157-0210, 20 ft)
breaks.
cooling would occur in the regulator instead of the oven.
the pressure).
Dip tube
Correct configuration
tank pressure will be 4830 to 6900 kPa (700 to 1,000 psi)
Incorrect configuration
7890 Series GC Site Preparation
system include:
2
tank, as vaporization and
2
. Both
2
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