Registration number (WIID)Project No.TitleStatus
69390LVS EN 12255-14:2023Wastewater treatment plants - Part 14: DisinfectionStandarts spēkā
7299LVS CEN/TR 1295-3:2007Structural design of buried pipelines under various conditions of loading - Part 3: Common methodStandarts spēkā
66910LVS EN 12255-6:2023Wastewater treatment plants - Part 6: Activated sludge processStandarts spēkā
69389LVS EN 12255-10:2023Wastewater treatment plants - Part 10: Safety principlesStandarts spēkā
66908LVS EN 12255-11:2023Wastewater treatment plants - Part 11: General data requiredStandarts spēkā
7292LVS EN 14801:2006Conditions for pressure classification of products for water and wastewater pipelinesStandarts spēkā
66912LVS EN 12255-4:2023Wastewater treatment plants - Part 4: Primary treatmentStandarts spēkā
7278LVS CEN/TR 1295-2:2006Structural design of buried pipelines under various conditions of loading - Part 2: Summary of nationally established methods of designStandarts spēkā
69388LVS EN 12255-12:2024Wastewater treatment plants - Part 12: Control and automationStandarts spēkā
70584LVS EN 1253-6:2023Gullies for buildings - Part 6: Trapped floor gullies with a depth of water seal less than 50 mmStandarts spēkā
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