Buchi Nano B-90, Operation Manual

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2 Safety
7
B-90 Operation Manual, Version B
2 Safety
This chapter highlights out the safety concept of the instrument and contains general rules of behavior
and warnings from direct and indirect hazards concerning the use of the product.
For the users safety, all safety instructions and safety messages in the individual chapters shall
be strictly observed and followed. Therefore, the manual must always be available to all persons
performing the tasks described herein.
2.1 User qualification
The instrument may only be used by laboratory personnel and other persons who on account of
training and professional experience know of the potential dangers that can develop when operating
the instrument.
Untrained personnel, or persons who are currently being trained, require careful supervision by a quali-
fied person. The present Operation Manual serves as a basis for training.
2.2 Proper use
The Nano Spray Dryer B-90 and the Nano Spray Dryer B-90 Advanced have been designed and built
as laboratory instruments.
• The Nano Spray Dryer B-90 serves to spray-dry aqueous solutions or suspensions in ‘open loop’
with compressed air as drying gas.
• The Nano Spray Dryer B-90 Advanced can additionally process organic solvent solutions or
suspensions in ‘closed loop’ when combined with the Inert Loop B-295. Processing in ‘closed
loop’ requires N
2
or CO
2
as an inert gas.
The output particle size of the Nano Spray Dryer B-90 is between 300 nm–5 µm. Thus, the instru-
ment is ideally suited to encapsulate particles and nano particles (<100 nm) from a solution or
suspension.
If the instrument is used with potentially toxic or hazardous substances in ‘open loop’, it has to be
installed inside a closed fume hood or glove box. In such cases, the complete processing and system
handling has to be performed within the ventilated box to avoid toxication and other hazardous situa-
tions to the user and the environment.
In any case, all exhausts leaving the exhaust gas tubing have to be lead away instantly by a ventilation
system, to remove possibly hazardous substances and fumes from the working area. The ventilation
system has to be equipped with safety measures such as outlet filters to avoid contamination of the
environment. When the Nano Spray Dryer B-90 is used in combination with other instruments (e.g.
Aspirator) all related manuals are to be fully observed.