Agilent Technologies G7035A Operation Manual page 20

1
Introduction
Dangers unique to GC/MSD operation
Hydrogen presents a number of dangers. Some are general, others are unique
to GC or GC/MSD operation. Dangers include, but are not limited to:
• Combustion of leaking hydrogen
• Combustion due to rapid expansion of hydrogen from a high-pressure
• Accumulation of hydrogen in the GC oven and subsequent combustion (see
• Accumulation of hydrogen in the MSD and subsequent combustion
Hydrogen accumulation in an MSD
The MSD cannot detect leaks in inlet and/or detector gas streams. For this reason,
WARNING
it is vital that column fittings should always be either connected to a column or have
a cap or plug installed.
All users should be aware of the mechanisms by which hydrogen can
accumulate
know or suspect that hydrogen has accumulated. Note that these mechanisms
apply to all mass spectrometers, including the MSD.
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cylinder
your GC documentation and the label on the top edge of the GC oven door)
(Table 4 on page 21) and know what precautions to take if they
5977 Series MSD Operation Manual