Registration number (WIID)Project No.TitleStatus
7168LVS EN 12255-11:2002Wastewater treatment plants - Part 11: General data requiredAtcelts
20826LVS EN 12255-3:2001 +ACWastewater treatment plants - Part 3: Preliminary treatmentAtcelts
7237LVS EN 12255-4:2003Wastewater treatment plants - Part 4: Primary settlementAtcelts
7243LVS EN 12255-10:2002Wastewater treatment plants - Part 10: Safety principlesAtcelts
7302EN 14654-1:2005Management and control of cleaning operations in drains and sewers - Part 1: Sewer cleaningAtcelts
7239LVS EN 12255-6:2003Wastewater treatment plants - Part 6: Activated sludge processAtcelts
7253LVS EN 12255-14:2004Wastewater treatment plants - Part 14: DisinfectionAtcelts
7252LVS EN 12255-13:2003Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculationAtcelts
7241LVS EN 12255-8:2002Wastewater treatment plants - Part 8: Sludge treatment and storageAtcelts
7284EN 295-1:1991/A3:1999Vitrified clay pipes and fittings and pipe joints for drains and sewers - Part 1: RequirementsAtcelts
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