CEN/TC 155
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 23093 | prEN 1447 rev | Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of long-term resistance to internal pressure | Izstrādē |
| 6228 | - | Plastics piping systems for buried ducting - Polypropylene (PP) - Part 1: General | Izstrādē |
| 6220 | - | Plastics piping systems for buried ducting - Unplasticized poly(vinyl chloride) (PVC-U) - Part 6: Recommended practice for installation | Izstrādē |
| 6182 | - | Plastics piping systems for underground drainage and sewerage under pressure - Glass-reinforced thermosetting plastics (GRP) based on epoxy resin (EP) - Part 6: Recommended practice for installation | Izstrādē |
| 6206 | - | Plastics piping systems for hot and cold domestic water supply, floor heating and central heating - Polyethylene (PE) - Part 1: General | Izstrādē |
| 6158 | - | Plastics piping systems for industrial applications - Glass-reinforced thermosetting plastics (GRP) based on epoxy resin (EP) - Above and below ground systems assembled from standard components - Part 7: Assessment of conformity | Izstrādē |
| 6090 | EN 1394:1996 | Plastics piping systems - Glass-reinforced thermosetting plastics (GRP) pipes - Determination of the apparent initial circumferential tensile strength | Izstrādē |
| 6139 | - | Plastics piping systems for non-pressure underground drainage and sewerage - Polyethylene (PE), structured wall - Part 7: Assessment of conformity | Izstrādē |
| 5920 | - | Plastics piping systems for water supply - Polypropylene (PP) - Part 4: Valves and auxiliary equipment | Izstrādē |
| 5991 | - | Plastics piping systems for chemical fluids - Glass-reinforced thermosetting plastics based on epoxy resin (GRP-EP) - Part 4: Valves and auxiliary equipment | Izstrādē |
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