WATERS CORPORATION TQ, Operator'S Manual, Page: 4 / 192

iv December 6, 2012, 71500126802IVD Rev. C
Safety considerations
Some reagents and samples used with Waters instruments and devices can
pose chemical, biological, and radiological hazards. You must know the
potentially hazardous effects of all substances you work with. Always follow
Good Laboratory Practice, and consult your organization’s safety
representative for guidance.
Considerations specific to the TQ Detector IVD
Solvent leakage hazard
The source exhaust system is designed to be robust and leak-tight. Waters
recommends you perform a hazard analysis, assuming a maximum leak into
the laboratory atmosphere of 10% LC eluate.
Flammable solvents hazard
Never let the nitrogen supply pressure fall below 690 kPa (6.9 bar, 100 psi)
during analyses that require flammable solvents. Connect to the LC output
with a gas-fail connector to stop the LC solvent if the nitrogen supply fails.
Warning:
• To confirm the integrity of the source exhaust system, renew
the source O-rings at intervals not exceeding one year.
• To avoid chemical degradation of the source O-rings, which
can withstand exposure only to certain solvents (see
page 191 ), determine whether any solvents you use that are
not listed are chemically compatible with the composition of
the O-rings.
Warning:
To prevent the ignition of accumulated solvent vapors inside
the source, maintain a continuous flow of nitrogen through the source
whenever significant amounts of flammable solvents are used during
the instrument’s operation.
Warning:
To avoid unmanaged solvent spillage do not place tools
or other objects in the drain channel on the probe top. Keep the
channel free from blockages.