Registration number (WIID)Project No.TitleStatus
7278LVS CEN/TR 1295-2:2006Structural design of buried pipelines under various conditions of loading - Part 2: Summary of nationally established methods of designStandarts spēkā
7279prEN 588-1:1996 revFibre-cement pipes for sewers and drains - Part 1: Pipes, joints and fittings for gravity systemsIzstrādē
7280LVS EN 12255-16:2006Wastewater treatment plants - Part 16: Physical (mechanical) filtrationAtcelts
7280EN 12255-16:2005Wastewater treatment plants - Part 16: Physical (mechanical) filtrationAtcelts
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
7281EN 12255-15:2003Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plantsIzstrādē
7282-Classification of drains and sewers, optical inspection and assessmentIzstrādē
7283CEN/TR 12566-2:2005Small wastewater treatment systems for up to 50 PT - Part 2: Soil infiltration systemsIzstrādē
7283LVS CEN/TR 12566-2:2005Small wastewater treatment systems for up to 50 PT - Part 2: Soil infiltration systemsStandarts spēkā
7284LVS EN 295-1:1991/A3:1999Vitrified clay pipes and fittings and pipe joints for drains and sewers - Part 1: RequirementsAtcelts
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