BUCHI SpeedDigester K-436 - Manual (Page 6)

2 Safety
6 K-425 / K-436 Operation Manual, Version A
2 Safety
This chapter introduces 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 any 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 the potential dangers that can develop when operating the
instrument.
Untrained personnel, or persons who are currently being trained, require careful supervision by a
qualified person. This Operation Manual serves as a basis for training.
2 .2 Proper use
The SpeedDigester K-425 / K-436 has been designed and built for laboratory use only. Its intended
use is to allow digestion of samples with concentrated acids or peroxides by heating up the probe.
A suction unit (e.g. Scrubber or water jet pump) has to be connected to the suction module to safely
withdraw fumes which will emerge during digestion. In any case, all exhausts and fumes leaving the
system or assemblies such as Scrubber or water jet pump have to be removed instantly inside a
fume hood. This is mandatory to remove all possibly hazardous substances (e.g. acid fumes) from the
working area. The ventilation system of the fume hood has to be equipped with safety measures such
as outlet filters to avoid contamination of the environment.
When the SpeedDigester K-425 / K-436 is used in combination with other instruments (e.g. Scrubber
and fume hood) all related manuals are to be fully observed.
2 .3 Improper use
Applications not mentioned in section 2.2 are considered to be improper. Applications which do not
comply with the technical data (see section 3 of this manual) are also considered to be improper.
The operator bears the sole risk for any damages or hazards caused by improper use!
The following uses are expressly forbidden:
Digestion operations outside an active fume hood. •
Digestion of samples (e.g. food and feed) in nitrosulfuric acids which can produce explosive nitro •
compounds.
Digestion of sample material of unknown composition in nitrosulfuric acids.
•
Use of samples which can explode or ignite due to shocks, friction, heat or sparks. •
Installation or use of the instrument in rooms, which require ex-protected instruments. •
Use of glassware which is not specified in section 2.5.4. •