Plastics piping and ducting systems - Thermoplastics pipes - Determination of resistance to external blows by the staircase method; German version EN 1411:1996— 8 стр.
Pipes and fittings made of thermoplastic materials with profiled wall and smooth pipe inside - Large pipes over DN 1200 for underground installation - Part 1: General requirements and performance characteristics— 24 стр.
Pipes and fittings for subsoil drainage of trafficked areas and underground engineering - Part 1: Pipes, fittings and their joints made from PVC-U, PP and PE— 30 стр.
