Safety Practices and Hazards
Agilent 55B AA Spectrometer User’s Guide 17
Nitrous oxide - N
2
O
The conversion of high pressure N
2
O liquid to N
2
O gas at the regulator can cause
excessive cooling and eventual freezing of the regulator. To prevent regulator
malfunction and possible flashback, the gas should be heated with an in-line or
wrap-around heater.
Prevent freezing by using a heater on the N
2
O regulator on the supply cylinder.
Contact the supplier of the regulator for a suitable heater.
Gas hoses and connections
WARNING
Explosion Hazard, Fire Hazard, Noxious Gas
Even small leaks in gas supply systems can be dangerous.
A leak can create an explosion hazard, a fire hazard, or can result in an oxygen-
deficient atmosphere.
Such hazards can cause death, serious injury, asphyxiation, anesthetic effects,
and serious damage to equipment and property.
Use only approved regulators, connectors and fittings. If in any doubt, consult your
local gas supplier or your Agilent representative.
Ensure that all gas connectors and hoses are correctly assembled.
Arrange gas hoses so that they will not be damaged, stepped on, or have things
dropped on them.
Never use frayed or damaged hoses.
Perform leak tests at all joints and seals every day before the instrument is used.
Test for leaks with a brush and soapy water or a proprietary leak-detecting
solution. NEVER use a naked flame when testing for leaks.
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