Current
Mechanical & Electrical Supplement
BS EN
Specifies a method for measuring the water rejection performance through the louvre under test, allowing the data to be used for comparison for different designs of louvres. The louvres are designed to restrict the passage of water during rainfall while allowing the passage of air into or from an air distribution system or part of a building. The louvres can be used in a wide range of applications, and be subjected to many differences in wind speed and direction, levels of local turbulence, rate and droplet size, distribution of rainfall and surface water flow from the surrounding structure. Information from these tests will try to establish the effectiveness when subjected to wind pressure at various air flow rates. and to establish the air pressure loss through the weather louvre at various air flow rates.
0580387399
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.