BS 493:1995 Specification for airbricks and gratings for wall ventilation (+A1:2010)
Publication Year
1995
Document Status
Current
Abstract
Details requirements for: Class 1 units for external use, and class 2 units for internal use, in concrete, clay, copper, aluminium, steel, thermoplastics and plaster (internal only). Also gives overall dimensions, shape of apertures, unobstructed air space, wall hold, screening, testing of plaster units, impact test for thermoplastics airbricks.
Document History
Supersedes BS 493:1995. Amendment A1 dated 30 September 2010 - See foreword.
ISBN
9780580727955
Publisher Information
British Standards Institution
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.
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