Registration number (WIID)Project No.TitleStatus
66909LVS EN 12255-5:2024Wastewater treatment plants - Part 5: Lagooning processesStandarts 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
71307EN ISO 11296-9:2022Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks - Part 9: Lining with a rigidly anchored plastics inner layer (ISO/DIS 11296-9:2021)Standarts spēkā
61418CEN/TR 15897:2018Submerged Membrane Bioreactor (MBR) TechnologyStandarts spēkā
7187LVS EN 588-1:2000Fibre-cement pipes for sewers and drains - Part 1: Pipes, joints and fittings for gravity systemsStandarts spēkā
26747LVS EN 12050-2:2015Wastewater lifting plants for buildings and sites - Part 2: Lifting plants for faecal-free wastewaterStandarts spēkā
66906LVS EN 12255-8:2024Wastewater treatment plants - Part 8: Sludge treatment and storageStandarts spēkā
7281LVS EN 12255-15:2004Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plantsStandarts spēkā
7154LVS EN 1123-1:2000Pipes and fittings of longitudinally welded hot-dip galvanized steel pipes with spigot and socket for waste water systems - Part 1: Requirements, testing, quality controlStandarts spēkā
69386LVS EN 12255-13:2023Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculationStandarts spēkā
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