# EN 12566 > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/EN_12566 > Markdown URL: https://mediated.wiki/source/EN_12566.md > Source: https://en.wikipedia.org/wiki/EN_12566 > Source revision: 1324164633 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) Set of European Standards This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources. Find sources: "EN 12566" – news · newspapers · books · scholar · JSTOR (April 2018) This article may be too technical for most readers to understand. Please help improve it to make it understandable to non-experts, without removing the technical details. (June 2015) (Learn how and when to remove this message) **EN 12566 - Small wastewater treatment systems for up to 50 PT** refers to a set of [European Standards](/source/European_Committee_for_Standardization) which specify the general requirements for packaged and/or site assembled [wastewater treatment plants](/source/Wastewater_treatment) used for domestic [wastewater](/source/Wastewater) treatment for up to 50 PT (population total). The standards consist of the following parts: [1] - [EN 12566-1](https://en.wikipedia.org/w/index.php?title=EN_12566-1&action=edit&redlink=1): "Part 1: Prefabricated septic tanks" specifies the requirements and test methods for prefabricated [septic tank](/source/Septic_tank) units; - [EN 12566-2](https://en.wikipedia.org/w/index.php?title=EN_12566-2&action=edit&redlink=1): "Part 2: Soil infiltration systems" is a code of practice defining design parameters, construction details, installation, and component requirements for in-situ constructed [soil infiltration systems](https://en.wikipedia.org/w/index.php?title=Soil_infiltration_system&action=edit&redlink=1) and does not specify any treatment requirements; - [EN 12566-3](https://en.wikipedia.org/w/index.php?title=EN_12566-3&action=edit&redlink=1): "Part 3: Packaged and/or site assembled domestic wastewater treatment plants" specifies the requirements and test methods used to evaluate packaged wastewater treatment plants which are required to treat sewage to a predetermined standard; - [EN 12566-4](https://en.wikipedia.org/w/index.php?title=EN_12566-4&action=edit&redlink=1): "Part 4: Septic tanks assembled in situ from prefabricated kits" is an execution standard specifying pipe sizes, loads, watertightness, marking, and evaluation of conformity for septic tanks assembled in situ from prefabricated kits and ancillary equipment; - [EN 12566-5](https://en.wikipedia.org/w/index.php?title=EN_12566-5&action=edit&redlink=1): "Part 5: Pretreated Effluent Filtration systems" is a code of practise giving design parameters, construction details, installation, and component requirements for filtration systems receiving domestic wastewater from septic tanks; - [EN 12566-6](https://en.wikipedia.org/w/index.php?title=EN_12566-6&action=edit&redlink=1): "Part 6: Prefabricated treatment units for septic tank effluent" specifies requirements, test methods, and evaluation of conformity for prefabricated [secondary treatment units](/source/Secondary_treatment) used for the treatment of [effluent](/source/Effluent) from septic tanks; - [EN 12566-7](https://en.wikipedia.org/w/index.php?title=EN_12566-7&action=edit&redlink=1): "Part 7: Prefabricated tertiary treatment units" specifies requirements, test methods, and evaluation of conformity for a packaged and/or site assembled tertiary treatment unit. ## See also - [List of EN standards](/source/List_of_EN_standards) - [European Committee for Standardization](/source/European_Committee_for_Standardization) ## External links - [European Committee for Standardization](http://www.cen.eu/) ## References 1. **[^](#cite_ref-1)** European Committee for Standardization [CEN/TC 165/WG 41 - Small type sewage treatment plants (< 50 inhabitants)](http://standards.cen.eu/dyn/www/f?p=204:32:0::::FSP_ORG_ID,FSP_LANG_ID:7207,25&cs=108B869CE2E8414007ACACACECCA9CA93)[*[permanent dead link](https://en.wikipedia.org/wiki/Wikipedia:Link_rot)*] v t e List of EN standards EN standards CEN/CENELEC Guide 6 CEN Workshop Agreement Datex II EN 3 EN 54 EN 71 EN 166 EN 206-1 EN 207 EN 301 549 EN 417 EN 590 EN 1063 EN 1078 EN 1090 EN 1991 EN 1992 EN 1993 EN 1994 EN 1995 EN 1996 EN 1997 EN 1998 EN 1999 EN 10025 EN 10027 EN 10034 EN 10080 EN 12255 EN 12566 EN 13402 EN 13432 EN 13445 EN 13537 EN 13757 EN 13940 EN 14214 EN 15038 EN 15838 EN 16034 EN 16114 EN 28601 EN 45554 EN 50022 EN 50075 EN 50090 EN 50102 EN 50155 EN 50436 EN 55011 EN 61000-3-2 EN 61000-4-5 EN 62061 EN 62262 Meter-Bus Related Eurocodes Keymark List of CEN technical committees This engineering-related article is a stub. You can help Wikipedia by adding missing information. - [v](https://en.wikipedia.org/wiki/Template:Engineering-stub) - [t](/source/Template_talk%3AEngineering-stub) - [e](https://en.wikipedia.org/wiki/Special:EditPage/Template:Engineering-stub) --- Adapted from the Wikipedia article [EN 12566](https://en.wikipedia.org/wiki/EN_12566) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/EN_12566?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.