This European Standard 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.
EN 12566-6:2016 Referenced Document
EN 12260:2003 Water quality - Determination of nitrogen - Determination of bound nitrogen (TNb), following oxidation to nitrogen oxides
EN 12566-1:2000 Small Wastewater Treatment Systems for Up to 50 PT - Part 1: Prefabricated Septic Tanks (Incorporates Amendment A1: 2003)
EN 12566-3:2016 Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants
EN 12566-4:2007 Small wastewater treatment systems for up to 50 PT - Part 4: Septic tanks assembled in situ from prefabricated kits*， 2024-04-20 Update
EN 16323:2014 Glossary of wastewater engineering terms
EN 1899-1:1998 Water quality - Determination of biochemical oxygen demand after n days (BODn) - Part 1: Dilution and seeding method with allylthiourea addition (ISO 5815:1989, modified)
EN 1992-1-1:2004 Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings*， 2024-04-20 Update
EN 1993-1-1:2005 Eurocode 3: Design of steel structures - Part 1-1: General rules and rules for buildings
EN 25663:1993 Water quality; determination of Kjeldahl nitrogen; method after mineralization with selenium (ISO 5663:1984)
EN 476:2011 General requirements for components used in drains and sewers
EN 872:2005 Water quality - Determination of suspended solids - Method by filtration through glass fibre filters
EN ISO 10304-1:2009 Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate (ISO 10304-1:2007)
EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005)
EN ISO 11885:2009 Water quality - Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)
EN ISO 11905-1:1998 Water Quality - Determination of Nitrogen - Part 1: Method Using Oxidative Digestion with Peroxodisulfate ISO 11905-1:1997
EN ISO 13395:1996 Water Quality - Determination of Nitrite Nitrogen and Nitrate Nitrogen and the Sum of Both by Flow Analysis (CFA and FIA) and Spectrometric Detection
EN ISO 14911:1999 Water Quality - Determination of Dissolved Li+, Na+, NH4+, K+, Mn2+, Ca2+, Mg2+, Sr2+ and Ba2+ Using Ion Chromatography - Method for Water and Waste Water ISO 14911:1998
EN ISO 15681-2:2004 Water quality Determination of orthophosphate and total phosphorus contents by flow analysis (FIA and CFA) Part 2: Method by continuous flow analysis (CFA)*， 2024-04-20 Update
EN ISO 6878:2004 Water quality - Determination of phosphorus - Ammonium molybdate spectrometric method (ISO 6878:2004)
EN ISO 7899-1:1998 Water Quality - Detection and Enumeration of Intestinal Enterococci - Part 1: Miniaturized Method (Most Probable Number) for Surface and Waste Water (Incorporating Corrigendum May 2000)
EN ISO 7899-2:2000 Water Quality - Detection and Enumeration of Intestinal Enterococci - Part 2: Membrane Filtration Method ISO 7899-2:2000
EN ISO 9001:2015 Quality management systems - Requirements (ISO 9001:2015)
EN ISO 9308-1:2014 Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration method for waters with low bacterial background flora (Incorporates Amendment A1: 2017)
EN ISO 9308-3:1998 Water Quality - Detection and Enumeration of Escherichia Coli and Coliform Bacteria - Part 3: Miniaturized Method (Most Probable Number) for the Detection and Enumeration of E Coli in Surface and Waste Water (Incorporating Corrigendum No. 1)
ISO 15705:2002 Water quality - Determination of the chemical oxygen demand index (ST-COD) - Small-scale sealed-tube method
ISO 5664:1984 Water quality; Determination of ammonium; Distillation and titration method
ISO 6060:1989 Water quality; determination of the chemical oxygen demand
ISO 6778:1984 Water quality; Determination of ammonium; Potentiometric method
ISO 7150-1:1984 Water quality; Determination of ammonium; Part 1 : Manual spectrometric method
EN 12566-6:2016 history
2016EN 12566-6:2016 Small wastewater treatment systems for up to 50 PT - Part 6: Prefabricated treatment units for septic tank effluent
2013EN 12566-6:2013 Small wastewater treatment systems for up to 50 PT - Part 6: Prefabricated treatment units for septic tank effluent