DIN EN 448 (1994-12)被替代
Preinsulated bonded pipe systems for underground hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and polyethylene outer casing
出版：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
This standard is included in DIN Handbook 395. Specifies requirements and test methods for fittings of prefabricated thermally insulated pipe in pipe assemblies, comprising a steel service fitting from DN 20 to DN 600, rigid polyurethane foam insulation and an outer casing of polyethylene. Coverage includes: steel parts, casing pipes, marking, and fitting assemblies. Also gives detailed definitions and annexes.
DRAFT 2007 issued in September 2007. (09/2007)
UNI EN 448:1995 - Identical
NS EN 448 Ed. 2 (2003) - Identical
UNE EN 448:2005 - Identical
SS EN 448 Ed. 2 (2003) - Identical
SN EN 448:2003 - Identical
NEN EN 448:2003 - Identical
ONORM EN 448:2003 - Identical
BS EN 448:2003 - Identical
I.S. EN 448:2003 - Identical
NBN EN 448:2003 - Identical
NF EN 448:1994 - Identical
