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BS EN 14175-9 EN 14175-9 Fume cupboards. Part 9: Fume cupboards, ducted with filtered internal recirculation

Source:
CEN
Committee:
LBI/1/1 - Laboratory furniture and fittings
Categories:
Chemical laboratories. Equipment
Comment period start date:
Comment period end date:
Number of comments:
0

Comment by:

Scope

This document specifies characteristics concerning the design and performance requirements together with type testing and on-site testing procedures especially for ducted filtration fume cupboards not described in the other parts of EN 14175. Filter in DFFCs can be specific filters or a combination of filters dependent on the characteristics of the contaminants to be removed.

This document is related to and will refer to other parts of EN 14175 regarding definitions, technologies, testing methodologies, design factors and functional aspects.

This document covers the specific layout version of ducted fume cupboards with integral filtration. These devices called Ducted Filtration Fume Cupboards (DFFC) may be designed to partially reuse filtered air for internal dilution.

Fume cupboards fitted with filters which only act on the extracted air stream are not covered by this part.

Their filter requirements, description and testing could be taken from this standard, in particular in Annex A.

Recirculatory Filtration Fume Cabinets which return the filtered exhaust air back into the surrounding room are not part of this standard but described in the EN 17242.

The requirements for fume cupboards and filters for radioactive work are described in detail in EN 14175‑8.

DFFCs are not foreseen for work with pathogens. Appropriate microbiological cabinets are described in EN 12469.

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