IS 420:2004 Precast concrete manholes
Publication Year
2004
Document Status
Withdrawn, cited in regs
Abstract
Specifies the requirements of precast cylindrical manholes for permitting access to, and aeration of, drain or sewer systems to convey sewage, rainwater and surface water under gravity or low head pressure, usually in vehicle and/or pedestrian traffic.
Document History
Superseded by IS EN 420:2023.
Publisher Information
National Standards Authority of Ireland
National Standards Authority of Ireland (NSAI) is Ireland’s official standards body. They operate under the National Standards Authority of Ireland Act (1996) and are accountable to the Minister of Enterprise, Trade, Employment and Innovation.
1 Swift Square
Northwood
Santry
Dublin 9
NSAI
Ireland
Website: http://www.nsai.ie
Email: nsai@nsai.ie
Tel: 01 807 3800
