Registration number (WIID)Project No.TitleStatus
67880LVS EN 14654-2:2021Drain and sewer systems outside buildings - Management and control of activities - Part 2: RehabilitationStandarts spēkā
66913-Gully tops and manhole tops for vehicular and pedestrian areas – Part 7: Gully tops and manhole tops made of polyamideIzstrādē
66912LVS EN 12255-4:2023Wastewater treatment plants - Part 4: Primary treatmentStandarts spēkā
66912EN 12255-4:2023Wastewater treatment plants - Part 4: Primary treatmentIzstrādē
66911prEN 12255-7 revWastewater treatment plants - Part 7: Biological fixed-film reactorsIzstrādē
66910LVS EN 12255-6:2023Wastewater treatment plants - Part 6: Activated sludge processStandarts spēkā
66910EN 12255-6:2023Wastewater treatment plants - Part 6: Activated sludge processIzstrādē
66909LVS EN 12255-5:2024Wastewater treatment plants - Part 5: Lagooning processesStandarts spēkā
66909EN 12255-5:2024Wastewater treatment plants - Part 5: Lagooning processesStandarts spēkā
66908LVS EN 12255-11:2023Wastewater treatment plants - Part 11: General data requiredStandarts spēkā
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