8
Safety
KNAUER
Degasser 20DG User Manual V7632A, Version 1.1
Safety
Laboratory Regulations
Adherence to labora-
tory regulations
• Observe national and international regulations pertaining to
laboratory work!
Good Laboratory Practice (GLP) of the American Food &
Drug Administration
For development of methods and validation of devices: Pro-
tocol for the Adoption of Analytical Methods in the Clinical
Chemistry Laboratory, American Journal of Medical Technol-
ogy, 44, 1, pages 30–37 (1978)
Accident prevention regulations published by the accident
insurance companies for laboratory work
Solvents
Note
Even small quantities of other substances, such as additives,
modifiers, or salts can influence the durability of the materials.
The list of selected solvents was compiled based on research in
the pertinent literature and is only a recommendation by the
manufacturer. In the event of doubt, contact the KNAUER tech-
nical support.
Suitable
solvents
Solvents suitable for use in HPLC:
Acetone
Acetonitrile
Benzene
Chloroform
Acetic acid (10–50 %), at 25 °C (77 °F)
Ethyl acetate
Ethanol
Hexane/Heptane
Isopropanol
Methanol
Phosphoric acid
Toluene
Water
Solvent tray
To avoid damage from leaks, always place solvent bottles in a
solvent tray on the device.
Toxicity
Organic solvents are toxic above a certain concentration. Ensure
that work areas are always well-ventilated! Wear protective
gloves and safety glasses when working on the device!
Connect the silicone tube (inner diameter: 3.0 mm) at the olive-
type tube fitting of the exhaust, and lead the gases or liquids
into a suitable collecting container or to a fume hood.