CEN/TC 155
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 71454 | LVS EN ISO 16486-5:2021 | Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 5: Fitness for purpose of the system (ISO 16486-5:2021) | Standarts spēkā |
| 20879 | LVS EN ISO 16871:2003 | Plastics piping and ducting systems - Plastics pipes and fittings - Method for exposure to direct (natural) weathering | Standarts spēkā |
| 40965 | LVS EN ISO 17778:2015 | Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships (ISO 17778:2015) | Standarts spēkā |
| 78164 | LVS EN ISO 18984:2025 | Ball valves for thermoplastics piping systems for hot and cold water installations under pressure - Types, dimensions and requirements (ISO 18984:2025) | Standarts spēkā |
| 63855 | LVS EN ISO 19892:2019 | Plastics piping systems - Thermoplastics pipes and fittings for hot and cold water - Test method for the resistance of joints to pressure cycling (ISO 19892:2011) | Standarts spēkā |
| 63853 | LVS EN ISO 19893:2019 | Plastics piping systems - Thermoplastics pipes and fittings for hot and cold water - Test method for the resistance of mounted assemblies to temperature cycling (ISO 19893:2011) | Standarts spēkā |
| 25954 | LVS EN ISO 21003-1:2008 | Multilayer piping systems for hot and cold water installations inside buildings - Part 1: General (ISO 21003-1:2008) | Standarts spēkā |
| 25956 | LVS EN ISO 21003-2:2008 | Multilayer piping systems for hot and cold water installations inside buildings - Part 2: Pipes (ISO 21003-2:2008) | Standarts spēkā |
| 34601 | LVS EN ISO 21003-2:2008 /A1:2011 | Multilayer piping systems for hot and cold water installations inside buildings - Part 2: Pipes - Amendment 1 (ISO 21003-2:2008/Amd 1:2011) | Standarts spēkā |
| 25960 | LVS EN ISO 21003-3:2008 | Multilayer piping systems for hot and cold water installations inside buildings - Part 3: Fittings (ISO 21003-3:2008) | Standarts spēkā |
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