Security cabinet (EN 14470-1) for the storage of flammable liquids in cleanrooms

DUEPERTHAL_CLASSIC_pure_M_prax

For decades, safety cabinets have been the synonym for secure storage of flammable liquids in workspaces. Based on the current state of technology, there have been limited options to use this solution in cleanrooms.

Materials required for the construction of a safety cabinet are sometimes dust producers that are unsuitable for cleanrooms. Dust generation at conventional workplaces is negligibly low and not visible to the naked eye. However, in cleanroom technology, these particles—often measuring less than twenty-thousandths of a millimeter—can become a source of contamination. In semiconductor manufacturing, for example, these particles act like stones on a highway.

The new CLASSIC pure M safety cabinet makes this issue irrelevant for the user and operator. It is the world's first safety cabinet that not only meets legal requirements for storing hazardous materials in workspaces* but can also be installed as a device in cleanrooms of class 5 according to ISO 14644-1. This class corresponds to the American standard M 3.5 = 100 according to US Fed. Std. 209e. TÜV Nord Cert has tested and confirmed its suitability for cleanroom use in a test based on VDI 2083.

In addition to the type approval by the material testing institute iBMB Braunschweig, the independent TÜV Süd in Eschborn confirmed conformity with DIN EN 14470-1. For device and product safety, the CLASSIC line has received the GS mark.

* According to the Technical Rule for Flammable Liquids (TRbF) 20 Appendix L