CEN/TC 155
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 38159 | EN 1555-3:2010/FprA1 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings | Izstrādē |
| 39106 | EN 1555-3:2010+A1:2012 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings | Atcelts |
| 31484 | EN 1555-3:2010 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings | Atcelts |
| 24015 | EN 1555-3:2002/A1:2005 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings | Atcelts |
| 5996 | EN 1555-3:2002 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings | Atcelts |
| 77953 | EN 1555-2:2025 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2: Pipes | Izstrādē |
| 62507 | EN 1555-2:2021 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2: Pipes | Izstrādē |
| 31483 | EN 1555-2:2010 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2: Pipes | Atcelts |
| 5995 | EN 1555-2:2002 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2: Pipes | Atcelts |
| 77952 | EN 1555-1:2025 | Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 1: General | Izstrādē |
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