Glass in building - Determination of thermal transmittance (U value) - Calculation method
BS EN 673:2011
Document Status
Replaced, remains current
Supplement
British Standards Extra Supplement
Series
BS EN
Abstract
Details calculation methods for measuring thermal transmittance of glazing with flat and parallel surfaces. Applies to uncoated glass, coated glass and glass products which are not transparent in the far infrared.
History
Superseded by BS EN 673:2024. Supersedes BS EN 673:1998. This standard has been reinstated as EN 410 and EN 673 were originally scheduled to be produced in tandem, however EN 410 has been significantly delayed. The delay in producing EN 410 has caused major consequences, and the publication of the revised version of EN 410 is expected no later than May 2026. In the meantime, BS EN 673:2011 should be used.
ISBN
9780580712265
Subjects
- Materials
- Glass sheets
- General purpose sheets
Publisher History
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.
Information
NBS
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.
Accuris
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.