Warning: To avoid injury from bursting, nonmetallic tubing, heed these precautions
when working in the vicinity of such tubing when it is pressurized:
• Wear eye protection.
• Extinguish all nearby flames.
• Do not use tubing that is, or has been, stressed or kinked.
• Do not expose nonmetallic tubing to compounds with which it is chemically
incompatible: tetrahydrofuran, nitric acid, and sulfuric acid, for example.
• Be aware that some compounds, like methylene chloride and dimethyl sulfoxide,
can cause nonmetallic tubing to swell, significantly reducing the pressure at which
the tubing can rupture.
A.1.1.2
Mass spectrometer shock hazard
The following warning applies to all Waters mass spectrometers.
Warning: To avoid electric shock, do not remove protective panels from system
modules. The components within are not user-serviceable.
The following warning applies to certain mass spectrometers when they are in Operate mode.
Warning: To avoid harmless, static-like electric shock, ensure that the mass
spectrometer is in Standby mode before you touch any of its external surfaces that are
marked with this high voltage warning symbol.
A.1.1.3 Mass spectrometer flammable solvents warning (600 kPa)
This warning applies to mass spectrometers performing an analysis that requires the use of
flammable solvents.
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.
A.1.1.4
Biohazard warning
The following warning applies to Waters instruments and devices that can process material
containing biohazards, which are substances that contain biological agents capable of producing
harmful effects in humans.
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