EVS-EN 12566-3:2005+A2:2013

This European Standard specifies requirements, test methods, the marking and evaluation of conformity for
packaged and/or site assembled domestic wastewater treatment plants (including guest houses and
businesses) used for populations up to 50 inhabitants. Small wastewater treatment plants according to this
European Standard are used for the treatment of raw domestic wastewater.
It covers plants with tanks made of concrete, steel, PVC-U, Polyethylene (PE), Polypropylene (PP), Glass
Reinforced Polyester (GRP-UP), Polydicyclopentadiene (PDCPD) and container made of flexible sheets
(PEHD, PP, PVC, EPDM).
The test methods specified in this European Standard establish the performance of the plant, needed to verify
its suitability for the end use (see 3.1).
This European Standard applies for small wastewater treatment plants for use buried in the ground where no
vehicle loads are applied to the product.
This European Standard applies to plants where all prefabricated components are factory or site-assembled
by one manufacturer and which are tested as a whole.
NOTE In some countries, domestic wastewater treatment plants are followed by other systems to conform to national
regulations.