Safety Practices and Hazards
Agilent 240/280 Series AA (including Zeeman) 17
Figure 1. System setup diagram
Compressed gases and cylinders for flame operation
This spectrometer must only be used with air, nitrous oxide, and acetylene for
flame operation.
Never use oxygen or oxygen-enriched air as the oxidant because this results in an
explosion.
Never use any gas except acetylene as the fuel gas.
Acetylene
Unskilled, improper, or careless use of acetylene can create explosion hazards and
fire hazards that can result in death, severe personal injury, or burns.
Use acetylene at pressures lower than 105 kPa (15 psig). At pressures above this
level, acetylene can explode spontaneously. Your Agilent AA is designed to operate
at fuel supply pressures between 65 and 100 kPa (9.5–14.5 psig). Refer to the
‘Specifications’ section or the rear of the instrument for the exact range and
recommended pressure.
Do not use any tubing or connector that reacts chemically with acetylene. Never
pass acetylene through copper tubing, or brass tubing or fittings containing more
than 65% copper, since this may provoke an explosion. Never bring acetylene into
direct contact with copper, silver, liquid mercury, gaseous chlorine, or grease, as an
explosion could result.
system
operating
adjuster
Drain tubing must slope downwards
for full length with no kinks
above the highest liquid level
Wide waste vessel opening
waste vessel in
full view of the
operator
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