CEN/TC 155
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 84583 | prEN ISO 18488 | Polyethylene (PE) materials for piping systems — Determination of strain hardening modulus in relation to slow crack growth — Test method | Izstrādē |
| 84181 | prEN 1704 rev | Plastics piping systems - Thermoplastics valves - Test method for the integrity of a valve after temperature cycling under bending | Izstrādē |
| 84105 | prEN ISO 17778 rev | Plastics piping systems — Fittings, valves and ancillaries — Determination of gaseous flow rate/pressure drop relationships | Izstrādē |
| 84070 | prCEN/TS 1401-2 rev | Plastics piping systems for non-pressure underground drains and sewers — Unplasticized poly(vinyl chloride) (PVC-U) — Part 2: Assessment of conformity | Izstrādē |
| 84063 | - | Plastics piping systems for non-pressure underground drains and sewers – Procedure for determining the durability of thermoplastic pipes under constant deformation | Izstrādē |
| 83900 | prEN 12119 | Plastics piping systems - Polyethylene (PE) valves - Test method for resistance to thermal cycling | Izstrādē |
| 83822 | prEN ISO 7685 | Glass-reinforced thermosetting plastics (GRP) pipes - Determination of initial ring stiffness (ISO 7685:2026) | Izstrādē |
| 83682 | - | Plastic piping systems - Structural design of circular thermoplastic manholes - Guidance under various conditions of loading | Izstrādē |
| 83630 | prEN ISO 22391-3 rev | Plastics piping systems for hot and cold water installations — Polyethylene of raised temperature resistance (PE-RT) — Part 3: Fittings | Izstrādē |
| 83629 | prEN ISO 22391-5 rev | Plastics piping systems for hot and cold water installations — Polyethylene of raised temperature resistance (PE-RT) — Part 5: Fitness for purpose of the system | Izstrādē |
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