Registration number (WIID)Project No.TitleStatus
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
7301LVS CEN/TR 14920:2005Jetting resistance of drain and sewer pipes - Moving jet test methodStandarts spēkā
20882LVS EN 13101:2003Steps for underground man entry chambers - Requirements, marking, testing and evaluation of conformityStandarts spēkā
7198LVS EN 858-1:2003Separator systems for light liquids (e.g. oil and petrol) - Part 1: Principles of product design, performance and testing, marking and quality controlStandarts 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 11296-9:2022)Standarts spēkā
36236LVS EN 1124-4:2014Pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket for wastewater systems - Part 4: Components for vacuum drainage systems and for drainage systems on shipsStandarts spēkā
66907EN 12255-9:2023Wastewater treatment plants - Part 9: Odour control and ventilationStandarts spēkā
7306LVS EN 1124-1:2000 /A1:2005Pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket for waste water systems - Part 1: Requirements, testing, quality controlStandarts spēkā
26749LVS EN 12050-4:2015Wastewater lifting plants for buildings and sites - Part 4: Non-return valves for faecal-free wastewater and wastewater containing faecal matterStandarts spēkā
7238LVS EN 12255-5:2001Wastewater treatment plants - Part 5: Lagooning processesStandarts spēkā
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