BS ISO 21927-3:2006+A1:2010 - Page 2

Smoke and heat control systems. Specification for powered smoke and heat exhaust ventilators | Status: Superseded, Withdrawn

1 Scope This part of ISO 21927 specifies requirements and gives methods for testing powered smoke- and heat-exhaust ventilators that are intended to be installed as part of a powered smoke- and heat-exhaust ventilation system. It also provides a procedure for approving a range of powered smoke- and heat-exhaust ventilators and their motors, from a limited number of tests.