Registration number (WIID)Project No.TitleStatus
7240LVS EN 12255-7:2003Wastewater treatment plants - Part 7: Biological fixed-film reactorsStandarts spēkā
41265LVS EN 12566-3:2016Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plantsStandarts 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
7283LVS CEN/TR 12566-2:2005Small wastewater treatment systems for up to 50 PT - Part 2: Soil infiltration systemsStandarts spēkā
7211LVS EN 12056-5:2001Gravity drainage systems inside buildings - Part 5: Installation and testing, instructions for operation, maintenance and useStandarts spēkā
38561CEN/TR 16626:2014Vitrified clay pipe systems for drain and sewers - Guidance for voluntary third-party certification proceduresStandarts spēkā
7275LVS EN 12380:2003Air admittance valves for drainage systems - Requirements, test methods and evaluation of conformityStandarts spēkā
66907LVS EN 12255-9:2023Wastewater treatment plants - Part 9: Odour control and ventilationStandarts spēkā
31269LVS EN 295-6:2013Vitrified clay pipes systems for drain and sewers - Part 6: Requirements for components of manholes and inspection chambersStandarts spēkā
7291LVS EN 14396:2004Fixed ladders for manholesStandarts spēkā
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