CEN/TC 23
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 83723 | EN ISO 11439:2013/prA2 | Gas cylinders — High pressure cylinders for the on-board storage of natural gas as a fuel for automotive vehicles — Amendment 2 | Izstrādē |
| 83000 | prEN ISO 11114-1 rev | Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 1: Metallic materials | Izstrādē |
| 82751 | prEN ISO 11114-2 rev | Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 2: Non-metallic materials | Izstrādē |
| 81978 | EN 17339:2024/prA1 | Transportable gas cylinders - Hoop wrapped and fully wrapped carbon composite cylinders and tubes for hydrogen | Izstrādē |
| 81660 | EN 12245:2022/prA1 | Transportable gas cylinders - Fully wrapped composite cylinders | Aptauja |
| 81483 | prEN ISO 13769 rev | Gas cylinders — Stamp marking | Izstrādē |
| 80840 | EN ISO 10156:2017/prA1 | Gas cylinders - Gases and gas mixtures - Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets - Amendment 1 (ISO 10156:2017/DAM 1:2026) | Aptauja |
| 80839 | EN ISO 11117:2019/prA1 | Gas cylinders - Valve protection caps and guards - Design, construction and tests - Amendment 1 (ISO 11117:2019/DAM 1:2026) | Aptauja slēgta |
| 80089 | prEN ISO 17879 | Gas cylinders - Self-closing cylinders valves - Specification and type testing (ISO/DIS 17879:2026) | Aptauja slēgta |
| 80088 | EN ISO 17871:2020/prA2 | Gas cylinders - Quick-release cylinder valves - Specification and type testing - Amendment 2 (ISO 17871:2020/DAM 2:2026) | Aptauja slēgta |
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