CEN/TC 155
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 78475 | prEN ISO 11301-1 | Piping systems for rehabilitation of underground gas supply networks - Part 1: Polyethylene (PE) material (ISO/DIS 11301‑1:2025) | Aptauja slēgta |
| 81259 | prEN ISO 11301-5 | Piping systems for rehabilitation of underground gas supply networks -- Part 5: Unplasticized Polyamide (PA-U) material | Izstrādē |
| 76044 | prEN ISO 1167-2 rev | Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 2: Preparation of pipe test pieces (ISO 1167-2:2006) | Izstrādē |
| 81829 | prEN ISO 1167-2 rev | Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of the resistance to internal pressure — Part 2: Preparation of pipe test pieces | Izstrādē |
| 63851 | prEN ISO 1167-4 | Thermoplastics pipes, fittings and assemblies for the conveyance of fluids - Determination of the resistance to internal pressure - Part 4: Preparation of assemblies | Izstrādē |
| 72930 | prEN ISO 12162 rev | Thermoplastics materials for pipes and fittings for pressure applications - Classification, designation and design coefficient | Izstrādē |
| 6186 | prEN ISO 13477 | Thermoplastics pipes for the conveyance of fluids - Determination of resistance to rapid crack propagation (RCP) - Small-scale steady-state test (S4 test) | Izstrādē |
| 80872 | prEN ISO 13760 rev | Plastics pipes for the conveyance of fluids under pressure — Miner's rule — Calculation method for cumulative damage | Izstrādē |
| 20865 | prEN ISO 13968 | Plastics piping and ducting systems - Thermoplastics pipes - Determination of ring flexibility (ISO/FDIS 13968:2008) | Izstrādē |
| 78188 | prEN ISO 15494 | Plastics piping systems for industrial applications - Polybutene (PB), polyethylene (PE), polyethylene of raised temperature resistance (PE-RT), crosslinked polyethylene (PE-X), polypropylene (PP) - Metric series for specifications for components and the system (ISO/DIS 15494:2025) | Aptauja |
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