Freeze-dryer Alpha 1-2 LSCbasic
3 Safety
30 / 111
Version 07/2022, Rev. 1.0 of 19/07/2022
• sb-ja
Translation of the original operating manual
3.7.2
Hazards caused by the refrigeration system (natural, flammable refrigerants)
DANGER
Risk of explosion due to refrigerants
The refrigerants used are highly flammable and can form an explosive
mixture if their concentration in the ambient air is sufficiently high.
There is an explosion hazard.
• Work on the refrigeration system of the freeze-dryer must only be
carried out by qualified specialist personnel who have been trained to
handle flammable refrigerants!
• Ensure good ventilation and make sure that no ignition sources (e.g.
soldering iron, welding equipment) are present!
3.7.3
Hazards caused by harmful products
DANGER
Risk of poisoning/infection caused by the products
When loading and unloading the drying chamber, the personnel are
exposed to the product.
Skin contact or the inhalation of particles may cause severe damage to
health depending on the product in question.
• Wear suitable protective clothes, gloves, and respiratory protection!
DANGER
Risk of poisoning/infection caused by the products
When performing maintenance work on parts coming into contact with the
product (e.g. all parts inside the chamber), the personnel may be exposed
to product residues.
Skin contact or the inhalation of particles may cause severe damage to
health depending on the product in question.
• Take suitable decontamination measures prior to commencing the
maintenance!
• Wear suitable protective clothes, gloves, and respiratory protection!
3.7.4
Hazards caused by solvents in the products
DANGER
Explosion hazard caused by solvents in the products
When freeze-drying products containing solvents, gas mixtures may form.
These gas mixtures may be ignited on certain components of the freeze-
dryer.
There is an explosion hazard.
• Solvents that are not included in the table in chapter 1.2.1 - "Freeze-
drying of solvent-containing products (non-aqueous media)", or the
listed solvents in a concentration higher than 10% by volume, must not
be used!
• Refer to the safety data sheets of the products that are used!
