Fume cupboards - Variable air volume fume cupboards1 Scope This document specifies requirements and type test methods for VAV systems. It also specifies additional requirements to those in EN 141752 and additional test methods to those in EN 141753 and EN 141754 for fume cupboards with VAV systems (VAV fume cupboards). For terms and definitions, EN 141751 applies. For safety and performance requirements of fume cupboards, EN 141752 applies. For type testing of fume cupboards with preset air volume

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