Toxicology
Sifren® 46 is classified according to the EU Directives as a harmful substance
by inhalation or in contact with skin and eyes, in case of intense or
continuous exposure.

Toxicity testing shows a LC50 inhalation value (4h) of 4.42 mg/l for rats.

In vitro testing shows that Sifren® 46 is not geno-toxic. The inhalation of
gas is irritating to the respiratory tract. The contact of liquid Sifren® 46
with skin and eyes may cause in frostbites.

Warnings
Cylinders filled with Sifren® 46 should be stored in a cool, dry and well
ventilated area.

Keep cylinders away from heat and ignition sources or flammable substances.
The product may be only used in plants equipped with explosion
protected electrical devices: Working and storage areas have to be provided
with a fire extinguishing system.

For preventing oxygen displacement ventilation of depressed areas e.g.
floors, cellars are necessary. Further information can be obtained from our
Technical Service Department.