5
Exhaust Venting
Exhaust vent fittings
4 Vent the GC/MS system externally to the building via an ambient-pressure vent system,
Exhaust vent fittings
The various inlet and detector vents terminate in the following fittings:
•
•
•
30
within 460 cm (15 ft) of both the GC split vent and GC/MS foreline pump, or vent to a fume
hood.
TCD, ECD: The detector exhaust terminates in a 1/8-inch od tube.
SSL: The split vent terminates in a 1/8-inch Swagelok female fitting.
All inlets: The septum purge vent terminates in 1/8-inch od tubing.
Site Preparation Guide