CEN/TC 165

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
7280LVS EN 12255-16:2006Wastewater treatment plants - Part 16: Physical (mechanical) filtrationAtcelts
66080LVS EN 12255-16:2021Wastewater treatment plants - Part 16: Physical (mechanical) filtrationStandarts spēkā
20826LVS EN 12255-3:2001 +ACWastewater treatment plants - Part 3: Preliminary treatmentAtcelts
7236LVS EN 12255-3:2016Wastewater treatment plants - Part 3: Preliminary treatmentStandarts spēkā
69387LVS EN 12255-3:2024Wastewater treatment plants - Part 3: Preliminary treatmentStandarts spēkā
7237LVS EN 12255-4:2003Wastewater treatment plants - Part 4: Primary settlementAtcelts
66912LVS EN 12255-4:2023Wastewater treatment plants - Part 4: Primary treatmentStandarts spēkā
7238LVS EN 12255-5:2001Wastewater treatment plants - Part 5: Lagooning processesStandarts spēkā
66909LVS EN 12255-5:2024Wastewater treatment plants - Part 5: Lagooning processesStandarts spēkā
Displaying 331-340 of 575 results.