Smoke and heat control systems - Specifications for natural smoke and heat exhaust ventilators Ingestion-build-189776 Mechanical service contractors

Mechanical service contractors

BS EN 746 first looks at the list of hazards

2 Reverification test

trench sheeting

including repairs

Smoke and heat control systems - Specifications for natural smoke and heat exhaust ventilators Ingestion-build-189776 Mechanical service contractorsWhat 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.