# 2010 Vancouver
Polyethylene pipes are particularly suited to non-conventional pipe installation thanks to their flexibility, deformability, and availability in long lengths. However, the widespread use of modern relining techniques or fast and non-disturbing pipe installation practices call for guaranties of performance, particularly regarding the effect of scratches, notches and impingements that are inherent to those techniques. The paper details how confidence has been gained in Germany as a result of a comprehensive testing protocol over the last 15 years. The milestones that have led to the definition of PE 100RC materials and pipes, which represent today about 20 % of the German PE pipe market, are illustrated by key test results. The logic followed to translate this experience into a standard PAS 1075 and technical requirements is explained, focussing on the guarantied safety margin. The German experience demonstrates clearly how standardisation is essential to spread confidence among involved parties. Efforts should now be devoted to diffuse this experience into European and International standards dealing with pipe rehabilitation and trench-less technologies. This way, the safety offered by PE 100-RC will permit PE to further grow together with non-conventional installation techniques, to the benefit of all parties.