Safety hazard symbol notice
Documentation needs to be consulted in all cases where the
symbol is used to find out the
nature of the potential hazard and any actions which have to be taken.
Considerations specific to the device
Power cord replacement hazard
Warning:
To avoid electric shock, use SVT-type power cords in the United States and
HAR-type (or better) cords in Europe. The power cords must be replaced only with ones
of adequate rating. For information regarding which cord to use in other countries,
contact your local Waters distributor.
Solvent leakage hazard
The source exhaust system is designed to be robust and leak-tight. Waters recommends that you
perform a hazard analysis, assuming a maximum leak into the laboratory atmosphere of 10% LC
eluate. If the instrument is a standard QDa fitted with a diaphragm pump, assume an additional
0.5% maximum leak into the laboratory atmosphere.
Warning:
To avoid exposure to toxic substances and biohazards from O-ring leaks in the
source exhaust system, observe these precautions:
• Replace the source O-rings at intervals not exceeding one year.
• Prevent chemical degradation of the source O-rings, which can withstand exposure only to
certain solvents, by determining whether any solvents you use are chemically compatible with
the composition of the O-rings.
Flammable solvents hazard
Warning:
To prevent the ignition of flammable solvent vapors in the enclosed space of
a mass spectrometer’s ion source, ensure these conditions are met:
• Nitrogen flows continuously through the source.
• A gas-fail device is installed, to interrupt the flow of LC solvent should the nitrogen
supply fail.
• The nitrogen supply pressure does not fall below 600 kPa (6 bar, 87 psi) during an
analysis requiring the use of flammable solvents.
June 15, 2017, 715003956 Rev. F
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