CEN/TC 155
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 77953 | FprEN 1555-2 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2: Pipes | Izstrādē |
| 77951 | FprEN 1555-3 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings | Izstrādē |
| 77954 | FprEN 1555-4 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves | Izstrādē |
| 77011 | FprEN 16903 | Plastic piping systems buried outside the building structure - Environmental product declarations - Product category rules complementary to EN 15804 | Izstrādē |
| 58869 | FprEN 16903:2018 | Plastics piping systems - Environmental product declarations - Product Category Rules complementary to EN 15804, for buried plastics piping systems | Izstrādē |
| 77013 | FprEN 16904 | Plastics piping systems inside the building structure - Environmental product declarations - Product category rules complementary to EN 15804 | Izstrādē |
| 58870 | FprEN 16904:2018 | Plastics piping systems - Environmental product declarations - Product Category rules complementary to EN 15804, for plastic piping systems inside buildings | Izstrādē |
| 78612 | FprEN ISO 16486-4 | Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 4: Valves (ISO/FDIS 16486-4:2025) | Izstrādē |
| 6189 | ISO/CD 13480 | Plastics piping systems - Resistance to crack propagation - Test method for notched and coned pipes with nominal sizes less than or equal to 63 millimeters (cone test) | Izstrādē |
| 5840 | ISO/WI 13285-1 | Plastics piping systems for non-pressure underground drainage and sewerage - Structured-wall piping system of polyethylene (PE) - Part 1: Specifications for pipes, fittings and the system | Izstrādē |
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