Rigid cellular plastics - Determination of the volume percentage of open cells and of closed cells (ISO 4590:2002); German version EN ISO 4590:2003— 23 стр.
Preinsulated bonded pipe systems for underground hot water networks - Pipe assembly of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German version EN 253:1994— 20 стр.
Rigid cellular plastics - Determination of the volume percentage of open cells and of closed cells (ISO 4590:2002); German version EN ISO 4590:2003— 23 стр.