BS EN 12566-6:2016 specifies requirements, test methods, evaluation of conformity and marking for
prefabricated secondary treatment units used for the treatment of effluent from septic tanks according
to EN 12566-1 or EN 12566-4 in small wastewater treatment systems for up to 50 PT.NOTE Equivalent septic effluent may come from existing septic tanks.It applies to the prefabricated secondary treatment unit, where all its components are packaged or site assembled and placed on the market as a kit by one manufacturer.The prefabricated secondary treatment unit consists of one or more tanks made of concrete, steel,
unplasticised polyvinylchloride (PVC-U), polyethylene (PE), glass reinforced polyester (GRP-UP),
polypropylene (PP), polydicyclopentadiene (PDCPD) or container made of flexible sheets (HDPE, PP,
PVC, EPDM). Other components specified by the manufacturer, such as pipes, pumps and filter material
will be considered as part of the unit.This European Standard establishes the performance of the prefabricated secondary treatment units
needed to verify their suitability for the end use conditions for which the test methods are specified.This European Standard applies for the packaged and/or site assembled secondary treatment units for
use on the top of the ground (outside the building) or buried in the ground where no vehicle loads are
applied to the unit.This European Standard does not cover:non watertight secondary treatment units with direct infiltration into the ground;retrofit kits (see definition in 3.1.7).Cross References:EN 16323:2014EN 12566-1EN 12566-3:2016EN 12566-4EN 13501-1305/2011/EUEN 476EN ISO 9001ISO 9001EN 872EN 1899-1ISO 5815:1989EN 12260EN 25663ISO 5663EN ISO 6878ISO 6878EN ISO 10304-1ISO 10304-1EN ISO 11732ISO 11732EN ISO 11885ISO 11885EN ISO 11905-1ISO 11905-1EN ISO 13395ISO 13395EN ISO 14911ISO 14911EN ISO 15681-2ISO 15681-2ISO 5664ISO 6060ISO 6778ISO 7150-1ISO 15705EN ISO 7899-1ISO 7899-1EN ISO 7899-2ISO 7899-2EN ISO 9308-1ISO 9308-1EN ISO 9308-3ISO 9308-3EN 1992-1-1EN 1993-1-1All current amendments available at time of purchase are included with the purchase of this document.