CEN/TC 254
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 36900 | prEN 1849-1 rev | Flexible sheets for waterproofing - Determination of thickness and mass per unit area - Part 1: Bitumen sheets for roof waterproofing. | Izstrādē |
| 12773 | EN 1297:2004 | Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Method of artificial ageing by long term exposure to the combination of UV radiation, elevated temperature and water | Izstrādē |
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