Registration number (WIID)Project No.TitleStatus
41266LVS EN 12566-1:2016Small wastewater treatment systems for up to 50 PT - Part 1: Prefabricated septic tanksStandarts spēkā
7271LVS EN 13380:2002General requirements for components used for renovation and repair of drain and sewer systems outside buildingsStandarts spēkā
7278CEN/TR 1295-2:2005Structural design of buried pipelines under various conditions of loading - Part 2: Summary of nationally established methods of designStandarts spēkā
7148LVS EN 1433:2003Drainage channels for vehicular and pedestrian areas - Classification, design and testing requirements, marking and evaluation of conformityStandarts spēkā
31248LVS EN 1253-1:2015Gullies for buildings - Part 1: Trapped floor gullies with a depth water seal of at least 50 mmStandarts spēkā
41267LVS EN 12566-7:2016Small wastewater treatment systems for up to 50 PT - Part 7: Prefabricated tertiary treatment unitsStandarts spēkā
7211LVS EN 12056-5:2001Gravity drainage systems inside buildings - Part 5: Installation and testing, instructions for operation, maintenance and useStandarts spēkā
7236LVS EN 12255-3:2016Wastewater treatment plants - Part 3: Preliminary treatmentStandarts spēkā
7210LVS EN 12056-4:2001Gravity drainage systems inside buildings - Part 4: Wastewater lifting plants - Layout and calculationStandarts 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
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