The 30 and 60 types may be used only with restrictions. The common model is the hazardous material cabinet with a fire resistance of at least 90 minutes. The type 90 is equivalent to the current state of the art in Germany. Other European countries allow the use of all four types, since no contrary legislation exists. The workers must be kept by the operator, to observe the security regulations at any time.
This must be also make sure that hazardous substance cabinets are properly used and operated. According to the standard EN 14470 a safety Cabinet a grounding lug always consists of an inner Cabinet, a fire protection insulation, an automatic locking mechanism of the doors in case of fire, a- and exhaust air system, fire seals, as well as in some cases. A tray attached to the bottom of the Cabinet, picks up any leaking fluids and prevents dangerous leaks. In addition to factors such as the size or the fire resistance class, safety cabinets differ also on the basis of their door and locking system. Top priority is the integration of the self closing mechanism. In the normal case, the doors are closed during the work.
However, in some cases is a quick withdrawal and operation necessary, and thus an always open door. There are so-called hold-open systems. The Security Cabinet’s door will remain open, a melt solder must be installed, which through the thermal trip, the doors can be closed. This is done from a maximum temperature of 50 C. So that the Temperaturausloseelement can quickly heat, it is advisable to install it in an area with free air circulation. Before the doors even open drawer trains close automatically in the event of a fire. When heated above 160 c, the joints on the doors are sealed by intumescent fire seals. Safety cabinets for compressed gas cylinders have no automatic door closing according to DIN EN 14470-2 because these should be excluded in the daily operation.