Wesemann DB-DG03, User Manual, Page: 13 / 92

13 User Manual | Laboratory Fume Cupboard | Safety
2.2 List of safety markings used
2.2.1 Warning signs
Warning of toxic substances
Warning of electrical voltage
2.2.2 Mandatory signs
Hand protection must be worn
2.3 Proper use
2.3.1 General rules for all laboratory fume cupboards
The fume cupboards may be used only for the following purposes/applications:
• use in buildings.
• for the extraction and discharge of harmful gases produced in a conventional laboratory during chemical
processes. Each laboratory fume cupboard may only be subjected to chemical, thermal and mechanical
stress according to its prescribed purpose (authorization) and material selection.
• under normal laboratory conditions. The additional information regarding the T032 laboratory fume
cupboards: construction types and safe operation of the BG RCI - Professional Association of the Raw
Materials and Chemical Industry - must be strictly observed.
• The sash must be kept closed at all times. Exceptions to this are inspections and short-term
interventions, assembly, dismantling and loading, as well as loading/feeding of an apparatus, whereby
the opening of the sash must be limited to the extent necessary for the activity. In this case the work
should preferably be carried out through the laterally movable parts of the sash.
• No subsequent changes or modifi cations may be made to the construction of the fume cupboard
(e.g. modifi cation of the rear panel, additional openings in the side panels for pipelines, gas hoses, etc.).