PerkinElmer Clarus SQ 8 MS Series, Hardware Manual

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Hydrogen Ensure that all hydrogen lines and connections are leak-free.
When using a hydrogen tank, install an in-line hydrogen snubber
(part number 00090038) between the tank regulator and the
delivery tubing.
Ventilation Always provide adequate ventilation. When analyzing hazardous
compounds such as pesticides, it may be necessary to arrange to
vent the mass spectrometer effluent from the forepump into a
fume hood. To prevent contamination if a fume hood is
unavailable, an oil separation filter should be installed at the
outlet of the forepump vented to a fume hood or an oil mist
separator (Alcatel 68316) with a charcoal trap (Koby KA1). An
acceptable alternative is to attach a ½ inch Tygon tube and vent
to a hood. Pump oil vapor is considered toxic and must be vented
properly.