Smoke and heat control systems - Specifications for natural smoke and heat exhaust ventilators Ingestion-build-189776 it supersedes DD ENV 1631:1996

it supersedes DD ENV 1631:1996 which is now withdrawn

Recommendations for planning

2 Data to be recorded

10 Improve

particularly

Smoke and heat control systems - Specifications for natural smoke and heat exhaust ventilators Ingestion-build-189776 it supersedes DD ENV 1631:1996What is this standard about? This document applies to natural smoke and heat exhaust ventilators (NSHEV) operating as part of smoke and heat exhaust systems (SHEVS), placed on the market. This document specifies requirements and gives test methods for natural smoke and heat exhaust ventilators which are intended to be installed in smoke and heat control systems in buildings.