Registration number (WIID)Project No.TitleStatus
66908LVS EN 12255-11:2023Wastewater treatment plants - Part 11: General data requiredStandarts spēkā
38561CEN/TR 16626:2014Vitrified clay pipe systems for drains and sewers - Guidance for voluntary third-party certification proceduresStandarts spēkā
66909LVS EN 12255-5:2024Wastewater treatment plants - Part 5: Lagooning processesStandarts spēkā
69390LVS EN 12255-14:2023Wastewater treatment plants - Part 14: DisinfectionStandarts spēkā
59698LVS EN 16941-2:2021On-site non-potable water systems - Part 2: Systems for the use of treated greywaterStandarts spēkā
7271LVS EN 13380:2002General requirements for components used for renovation and repair of drain and sewer systems outside buildingsStandarts spēkā
69389LVS EN 12255-10:2023Wastewater treatment plants - Part 10: Safety principlesStandarts spēkā
41265EN 12566-3:2016Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plantsStandarts spēkā
30887LVS EN 1917:2003 /AC:2008Concrete manholes and inspection chambers, unreinforced, steel fibre and reinforcedStandarts spēkā
7197LVS EN 858-2:2003Separator systems for light liquids (e.g. oil and petrol) - Part 2: Selection of nominal size, installation, operation and maintenanceStandarts spēkā
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