To determine fire resistance of vertical and horizontal ventilation ducts, with or without branches. To measure ability of fire resistance without dampers.
Amendment C1 dated March 2014 - Information added to National Foreword. This standard has been superseded by the current BS EN 1366-1, BS EN 1366-8 and BS EN 1366-9, but it has been retained based on legitimate need for the standards within non-EU markets.
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.
IHS Markit is a leading global source of critical information and insight for customers in a broad range of industries. Our customer product and service solutions span four major areas of information: energy, product lifecycle management, environmental and security. By focusing on our customers first, we deliver data and expertise that enable innovative and successful decision-making. Customers range from governments and multinational companies to smaller companies and technical professionals in more than 180 countries. IHS has been in business since 1959 and employs more than 3,500 people in 35 locations around the world.