Safety Practices and Hazards
Agilent 240/280 Series AA (including Zeeman)
25
Furnace and Zeeman operation
Gases
The graphite tube atomizer gas supply system is designed for use with inert gases
and air.
Never
use pure hydrogen with the graphite tube atomizer since this could result in
leakage and potentially explosive accumulation of hydrogen. You may, however,
use a proprietary, prepackaged mixture of 95% argon (or nitrogen) and 5%
hydrogen.
Never
attempt to create your own mixture of hydrogen and an inert gas
for use with the GTA system.
Heat hazards
A hot furnace atomizer can present heat hazards that can result in severe burns to
personnel. Never put your hands in the sample compartment while you are
operating your furnace.
Allow the furnace atomizer to cool before removing it from the sample
compartment.
Vapors and fumes
Never
place your head over the graphite tube atomizer while it is operating. This
could cause inhalation of hazardous or toxic fumes, or your skin and eyes could be
injured by corrosive vapors or fumes.
The chimney or the optional exhaust accessory must be in place for furnace
operation to ensure that toxic vapors and heat are exhausted.
UV radiation
When viewing the sample during the drying stage, use only a rear coated mirror (as
supplied) or the Tube-CAM option.
Never
look directly at the furnace during either
the ash or atomize stages.
Magnetic field (Zeeman only)
The magnet produces a variable magnetic field of up to 0.8 Tesla peak at mains
frequency in the workhead during the read stage.
To avoid interference with heart pacemakers or magnetic storage media, keep
them at least 300 mm from the magnet.
Summary of Contents for 240 Series AA
Page 1: ...Agilent 240 280 Series AA including Zeeman User s Guide...
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