CEN/TC 165/WG 41 - Small type sewage treatment plants (< 50 inhabitants)

This European Standard specifies the requirements for prefabricated septic tanks and ancillary equipment used for the partial treatment of domestic wastewater for a population up to 50 PT. Pipe sizes, loads, watertightness, marking and quality control are specified. The following cases are excluded: - septic tanks receiving grey water only; - in situ constructed septic tanks.

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) and Glass Reinforced Polyester (GRP-UP). The test methods specified in this European Standard establish the performance of the plant, needed to verify its suitability for the end use. 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.

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.

This European Standard specifies requirements, test methods, the marking and evaluation of conformity for a packaged and/or site assembled tertiary treatment unit for installation either separately or in a pre-existing unit. It applies for tertiary treatment units that are placed on the market as complete units used for the tertiary treatment of domestic wastewater by biological, physical, chemical, electrical processes and coming from: a) units in accordance with EN 12566-3 or EN 12566-6; b) installations designed and constructed in accordance with CEN/TR 12566-5. Equivalent secondary treated effluent may come from existing systems. Package and/or site assembled tertiary treatment units according to this standard consist of one or more watertight tanks without any direct infiltration into the ground, made of concrete, corrosion resistant or coated steel, un-plasticised poly-vinyl chloride (PVC-U), polyethylene (PE), glass reinforced thermosetting plastics (GRP) based on polyester resin (UP) (GRP-UP), polypropylene (PP) and polydicyclopentadiene (PDCPD).

This European Standard specifies the requirements for septic tanks assembled in situ from prefabricated kits and ancillary equipment where applicable, used outside buildings for the partial treatment of domestic wastewater for a population up to 50 PT. Pipe sizes, loads, watertightness, marking and evaluation of conformity are specified. This standard does not apply to septic tanks receiving grey water only.

This Technical Report provides details of filtration systems used for applications ranging from a single house up to and included 50 PT. The filtration systems receive domestic wastewater from septic tanks manufactured according to the requirements given in EN 12566-1 and EN 12566-4.
This document is a code of practice and gives design parameters, construction details, installation and component requirements for constructed sand filters and subsurface flow sand or gravel reed beds.

This document specifies the recommended requirements for soil infiltration systems ranging in size from a single house to 50 PT receiving domestic wastewater from septic tanks manufactured according to the requirements given in EN 12566-1 and prEN 12566-4.
This document gives design parameters, construction details, installation and component requirements for soil infiltration systems.

This European Standard specifies characteristics and related requirements, assessment methods, the marking and assessment and verification of constancy of performance (AVCP) procedures for prefabricated tertiary treatment units used for populations up to 50 inhabitants.
Prefabricated tertiary treatment units in accordance with this European Standard are: - used for the tertiary treatment of domestic wastewater by biological, physical, chemical, electrical processes and coming from: a) products in accordance with EN 12566 3 or EN 12566 6 or;
b) installation designed and constructed in accordance with CEN/TR 12566-5.
NOTE   Equivalent secondary treated effluent may come from existing systems.
- made of concrete, steel, PVC-U, Polyethylene (PE), Polypropylene (PP), Glass Reinforced Polyester (GRP-UP), Polydicyclopentadiene (PDCPD), PVC and/or EPDM; - used on the top of the ground (outside the building) or buried in the ground; - with or without extension shaft;
- made of prefabricated components that are factory or site-assembled by one manufacturer and which are tested as a whole.
This European Standard does not cover prefabricated tertiary treatment units: - where vehicle loads apply to it; - with direct infiltration into the ground (non-watertight); - made of retrofit kits (see definition in 3.1.11); - forming part of products covered by EN 12566-3 and EN 12566-6; - for microorganism reduction.
The assessment methods specified in this European Standard establish the performance of the prefabricated tertiary treatment unit, needed to verify its suitability for the condition in which it is normally installed.

This European Standard specifies characteristics and related requirements, assessment methods, the marking and assessment and verification of constancy of performance (AVCP) procedures for prefabricated septic tanks used for populations up to 50 inhabitants.
Prefabricated septic tanks in accordance with this European Standard are: - used for the treatment of domestic wastewater including that of guest houses and businesses; - made of concrete, steel, PVC-U, Polyethylene (PE), Polypropylene (PP), Glass Reinforced Polyester (GRP-UP) and/or Polydicyclopentadiene (PDCPD); - used buried in the ground; - with or without extension shaft; - made of prefabricated components that are factory-assembled by one manufacturer and which are tested as a whole.
This European Standard does not cover prefabricated septic tanks: - where vehicle loads apply to it; - receiving grey water only; - assembled in situ from prefabricated kits.

This Part of the Standard specifies the requirements for packaged and/or site assembled domestic wastewater treatment plants used for populations up to approximately 50 inhabitants. The Standard specifies the functional requirements, process performance, testing, marking and quality control requirements. On site construction wastewater treatment plant are excluded.

This European Standard specifies characteristics and related requirements, assessment methods, the marking and assessment and verification of constancy of performance (AVCP) procedures for prefabricated secondary treatment units for populations up to 50 inhabitants.
Prefabricated secondary treatment units in accordance with this European Standard are:
- used for the treatment of effluent from product in accordance with EN 12566 1 or EN 12566 4;
NOTE   Equivalent septic effluent may come from existing septic tanks.
- made of concrete, steel, PVC-U, Polyethylene (PE), Polypropylene (PP), Glass Reinforced Polyester (GRP-UP), Polydicyclopentadiene (PDCPD), PVC and/or EPDM; - used on the top of the ground (outside the building) or buried in the ground; - with or without extension shaft;
- made of components that are packaged or site-assembled and placed on the market as a kit by one manufacturer.
This European Standard does not cover prefabricated secondary treatment units:
- where vehicle loads apply to it; - with direct infiltration into the ground (non-watertight);
- made of retrofit kits (see definition in 3.1.7).
The assessment methods specified in this European Standard establish the performance of the prefabricated secondary treatment unit, needed to verify its suitability for the condition in which it is normally installed.

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.

This European Standard specifies requirements, test methods, the marking and evaluation of conformity for a packaged and/or site assembled tertiary treatment unit for installation either separately or in a pre-existing unit (see 3.9).
It applies for tertiary treatment units that are placed on the market as complete units used for the tertiary treatment of domestic wastewater by biological, physical, chemical, electrical processes and coming from:
a)   units in accordance with EN 12566-3 or EN 12566-6;
b)   installations designed and constructed in accordance with CEN/TR 12566-5.
Equivalent secondary treated effluent may come from existing systems.
Package and/or site assembled tertiary treatment units according to this standard consist of one or more watertight tanks without any direct infiltration into the ground, made of concrete, corrosion resistant or coated steel, un-plasticised poly-vinyl chloride (PVC-U), polyethylene (PE), glass reinforced thermosetting plastics (GRP) based on polyester resin (UP) (GRP-UP), polypropylene (PP) and polydicyclopentadiene (PDCPD).
NOTE   Some product covered by this standard sold without a tank could be introduced in an existing tank.
This standard applies to tertiary treatment units for use above ground (outside the building) or buried in the ground where no vehicle loads are applied to the unit.
This standard does not apply to tertiary treatment systems forming part of units covered by EN 12566-3 and EN 12566-6.
This standard does not cover the systems for micro-organism reduction.

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 (PEHD, 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 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 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 standard does not cover:
-   non watertight secondary treatment units with direct infiltration into the ground;
-   retrofit kits (see definition in 3.7).

This standard specifies the requirements for septic tanks assembled in situ from prefabricated kits and ancillary equipment where applicable, used outside buildings for the partial treatment of domestic wastewater for a population up to 50 PT. Pipe sizes, loads, watertightness, marking and evaluation of conformity are specified.
This standard does not apply to septic tanks receiving grey water only.

+++ DOW = DAV + 21 months  (CEN/BT C 149/2000) - accepted by EC  at SCC of 8/9 April 2002 (with EC list n°7 -  doc. Construct 02/521 Rev 1)+++TO BE UPLOADED ON CIRCA - prEN 12566-1:2000/prA1 - waste water engineering"+++

This part of this standard specifies the requirements for prefabricated septic tanks and ancillary equipment used for the partial treatment of domestic wastewater for a population <=50 PT. Pipe sizes, loads, watertightness, marking and quality control are specified. The following cases are excluded:- septic tanks receiving grey water only; - in situ constructed septic tanks.

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) and Glass Reinforced Polyester (GRP-UP).
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.