BS EN 253:2009+A1:2013被替代
District Heating Pipes - Preinsulated Bonded Pipe Systems For Directly Buried Hot Water Networks - Pipe Assembly Of Steel Service Pipe, Polyurethane Thermal Insulation And Outer Casing Of Polyethylene
出版：British Standards Institution
专家解读视频
Describes requirements and test methods for straight lengths of prefabricated thermally insulated pipe-in-pipe assemblies for directly buried hot water networks, comprising a steel service pipe from DN 15 to DN 1200, rigid polyurethane foam insulation and an outer casing of polyethylene.
Supersedes 00/715596 DC. (03/2003) Supersedes 07/30168488 DC. (02/2009) 2009 Edition Re-Issued in April 2013 & incorporates AMD 1 2013. Supersedes 11/30247802 DC. (04/2013)
NS EN 253:2009 - Identical
NEN EN 253:2009 - Identical
NBN EN 253:2009 - Identical
SN EN 253:2009 - Identical
EN 253:2009 - Identical
NF EN 253:2009 - Identical
UNE EN 253:2010 - Identical
UNI EN 253:2013 - Identical
