Registration number (WIID)Project No.TitleStatus
66907LVS EN 12255-9:2023Wastewater treatment plants - Part 9: Odour control and ventilationStandarts spēkā
7242LVS EN 12255-9:2003Wastewater treatment plants - Part 9: Odour control and ventilationStandarts spēkā
66906LVS EN 12255-8:2024Wastewater treatment plants - Part 8: Sludge treatment and storageStandarts spēkā
7241LVS EN 12255-8:2002Wastewater treatment plants - Part 8: Sludge treatment and storageAtcelts
7240LVS EN 12255-7:2003Wastewater treatment plants - Part 7: Biological fixed-film reactorsStandarts spēkā
66910LVS EN 12255-6:2023Wastewater treatment plants - Part 6: Activated sludge processStandarts spēkā
7239LVS EN 12255-6:2003Wastewater treatment plants - Part 6: Activated sludge processAtcelts
66909LVS EN 12255-5:2024Wastewater treatment plants - Part 5: Lagooning processesStandarts spēkā
7238LVS EN 12255-5:2001Wastewater treatment plants - Part 5: Lagooning processesStandarts spēkā
66912LVS EN 12255-4:2023Wastewater treatment plants - Part 4: Primary treatmentStandarts spēkā
Displaying 231-240 of 575 results.