Sicherheitswerkbänke: Neue Vielfalt und neue Wege zur Verbesserung der Sicherheit!
To 17. /18. June 2010 organized the ESN academy a seminar over safety work benches, with which over the different ranges of application, over new systems and qualification techniques one spoke. In two panel discussions questions and consequences of the current developments were discussed. Safety work benches were opened a large number of new ranges of application and to present itself for micro-biological and other applications in constant growing varieties, as L represented. Gail. The new work bench concepts do not only consider the individual process requirements regarding the mechanisms and expirations, but also regarding person and product protection under the topic � use of micro-biological safety work benches in bio and genetic engineering � placed v. Hoerschelmann the broad spectrum at Regularien for safety work benches forwards: Biological safety precautions, structural conditions, technical and organizational safety precautions, requirements of the personnel, at personal protection equipment and monitoring measures. H. Wei�sieker (T�V south) reported on security concepts, which are suitable to mediate between process requirements and protective systems. As important aid the classification systems were put out of ISO 14644-7 and VDI 2083-16. The presentation � new systems � had taken over C. Moirandat of CMD/Skan. In this contribution the extensive spectrum of technical options for the person and product protection became clear, who are obviously only basically exhausted today. New systems are thereupon laid out to prozessieren not only hochpathogene or toxic materials surely but offer solutions also improved for open departures as well as decontamination and tasks of disposal. Under the topic � type testing � reported to S. Schneider (T�V north) on the gs certification for the examination of the requirements of the DIN EN 12469 at micro-biological safety work benches. On the other hand Hinrichs (Bernese) became clearly in a contribution of T. that the protection of individuals can be limited also with perfectly certified work benches by disturbances from the environment. For these investigations, which oriented themselves at the well-known examination for � the robustness of the R�ckhalteverm�gens � for laboratory departures, own measurements were compared with literature data. D. Stanischewski (TO process technique) confronted procedures to these results, around protective functions also in the context of routine examinations, i.e. to examine at the place of assembly and even under operating conditions for basis of the ISO 14644-3. In the discussions the question was then treated, how security and particularly the protection of individuals are to be improved. For the manufacturers to it above all the task belongs to define � the safe enterprise � by the being and limit values for the vertical (Downflow) and horizontal (Inflow) air flow. While the usual testing methods are aligned completely to the type testing and/or the disturbances of the quiescent conditions defined for it, the conditions at the place of assembly remain particularly unconsidered under operating conditions comparatively and. D. Stanischewski could confirm this assumption, by referring to own measurements, which had shown that work benches, their protection of individuals� in the AI test corresponded to the standard and with the particle test (ISO 14644-3) still another protection factor > 105 had shown, in the operating condition during perfect operation, only a protection factor of under 103� exhibited. Under this criterion must be assumed the reliable enterprise of safety work benches is not to be secured any longer alone by a successful type testing. The examination of the place of assembly and above all also under operating conditions might receive in the future more in weight. Above all a way would be found to the practical requirements in order not to also operate type tested mechanisms accordingly at the place of assembly too qualify and sequentially surely. Straight one also for work benches, whose application is appropriate for fixed examinations outside of the range of the existing standards and that particularly for it, would exist a possibility of proving the safe enterprise. Of H. - J. bolt (BG RCI) it was pointed out that these aspects should be brought in the context of the amendment of the DIN EN 12469 by German side. Author: Dr. Lothar GailE mail: lozhar.gail@kcfn.de
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