CEN/TC 23
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 82751 | prEN ISO 11114-2 rev | Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 2: Non-metallic materials | Izstrādē |
| 81483 | prEN ISO 13769 rev | Gas cylinders — Stamp marking | Izstrādē |
| 80089 | prEN ISO 17879 rev | Gas cylinders — Self-closing cylinder valves — Specification and type testing | Izstrādē |
| 79797 | prEN ISO 18119 rev | Gas cylinders — Seamless steel and seamless aluminium-alloy gas cylinders and tubes — Periodic inspection and testing | Izstrādē |
| 22986 | prEN ISO 18572 | Transportable gas cylinders - Specification for the design and construction of refillable transportable seamless aluminium alloy gas cylinders up to and inlcuding 0.5 liters | Izstrādē |
| 34242 | prEN ISO 22435 rev | Gas cylinders - Cylinder valves with integrated pressure regulators - Specification and type testing | Izstrādē |
| 71609 | prEN ISO 23826 | Gas cylinders - Ball valves - Specification and type testing | Izstrādē |
| 22306 | prEN ISO 9809-2 | Gas cylinders - Refillable seamless gas cylinders - Design construction and testing - Part 2: Quenched and tempered steel cylinders with tensile strength great than or equal to 1 100 MPa (ISO 9809-2:2000) | Izstrādē |
| 22307 | prEN ISO 9809-3 | Gas cylinders - Refillable seamless gas cylinders - Design construction and testing - Part 3: Normalized steel cylinders (ISO 9809-3:2000) | Izstrādē |
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