District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 1: Factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of polyethylene (Endorsed by Asociación Española de Normalización in November of 2019.)
Edition 2019-11-01

District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 1: factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
Edition 2019-10-16

District heating pipes - Preinsulated bonded twin pipe systems for directly buried hot water networks - Part 2: fitting and valve assembly of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene

District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 2: Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene (Endorsed by Asociación Española de Normalización in November of 2019.)
Edition 2019-11-01

District heating pipes - Bonded twin pipe systems for directly buried hot water networks - Part 2: Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
Edition 2019-10-16

District heating pipes. Bonded twin pipe systems for directly buried hot water networks. Factory made twin pipe assembly of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
Edition 2019-11-05

District heating pipes. Bonded twin pipe systems for directly buried hot water networks. Factory made fitting and valve assemblies of steel service pipes, polyurethane thermal insulation and one casing of polyethylene
Edition 2019-11-05

District heating pipes. Design and installation of thermal insulated bonded single and twin pipe systems for directly buried hot water networks. Design
Edition 2019-05-03