IOVO - Water supply and waste water engineering

The document specifies, dimensions, materials and performance requirements (including methods of test) for expansion groups, of nominal sizes from DN 15 to DN 25, having working pressures ) from 0,1 MPa (1 bar) to 1,0 MPa (10 bar).
Expansion groups shall be fitted to the cold potable water supply only for expansion purposes, e.g. of storage water heaters, having a maximum distribution temperature of 95 °C.
Expansion groups limit pressure in the water heater to which they are fitted, that is produced by thermal expansion of the water, prevent the backflow of water into the supply pipe and prevent the discharged water to get into contact with the water in the water heater.
Expansion groups do not control temperature and alone do not constitute the protection required for storage water heaters.
NOTE   The use of the device specified in this Standard does not override the need to use controls (e.g. thermostats and thermal cut-outs) which act directly on the power sources of water heaters.

This European Standard is applicable to calcium carbonate used for treatment of water intended for human consumption. It describes the characteristics of calcium carbonate and specifies the requirements and the corresponding test methods for calcium carbonate. It gives information on its use in water treatment.

This European Standard specifies the principles of design, sizing, installation, identification, commissioning and maintenance of greywater systems with the purpose of use of greywater on-site.
It applies preferably for the use of treated greywater for:
-   WC flushing;
-   garden watering;
-   laundry;
-   cleaning purposes.
This European Standard also specifies the minimum requirements for greywater systems.
Excluded from the scope of this European Standard are:
-   the use as drinking water and for food preparation;
-   the use for personal hygiene purposes;
-   direct reuse systems for external use e. g. garden watering;
-   product design for specific system components;
-   industrial effluents;
-   heat recovery and cooling demands.
NOTE   Conformity with this European Standard does not exempt from compliance with the obligations arising from local or national regulations.

This document defines a methodology for determining and assessing the energy efficiency of Waste Water Treatment Plants (WWTP). The methodology aims at describing, in a systematic way, the various steps required to establish the Water Treatment Energy Index (WTEI) of a particular WWTP.
The methodology includes the classification of WWTPs in different types, identification of different stages of treatment, identification of key performance indicators (KPIs), overview of existing energy monitoring standards and the detailed description of the methodology, including a step by step guideline of how to apply and implement it.
The methodology is divided in 2 sub-methods that should be selected and followed according to the following goals:
-   The Rapid Audit (RA) method allows for a quick estimation of the water treatment energy index (WTEI) based on existing information such as historical data pertaining to energy use records along with influent and effluent quality values. The aim of this methodology is to provide a WWTP energy benchmark, a rapid tool to identify energy efficiencies and inefficiencies so further actions can be planned, as well as to evaluate the impact of WWTP retrofitting.
The Rapid Audit methodology is detailed step by step in Clause 3 of this TR and can be used as a standalone document.
-   The Decision Support (DS) method requires intensive monitoring across a WWTP of energy usage and water quality parameters that provides an accurate and detailed calculation of WTEI for each stage as well as its overall value for the plant. The goal of this assessment is to serve as a diagnosis of the functions/equipment in a plant that may lead to poor energy efficiency performance.
The Decision Support methodology is detailed step by step in Clause 4 of this TR and can be used as a standalone document.

This European Standard establishes requirements for the management and control of operational activities in drain and sewer systems outside buildings and specifies requirements for development and implementation of work programmes, and the selection of techniques.
This part covers the management and control of rehabilitation activities.
It is applicable to drain and sewer systems from the point where wastewater leaves a building, roof drainage system, or paved area, to the point where it is discharged into a wastewater treatment plant or receiving water body.
Drains and sewers below buildings are included provided that they do not form part of the drainage system of the building.

This European Standard establishes the general principles for the management and control of operational activities in drain and sewer systems outside buildings and specifies requirements for development and implementation of work programmes, and the selection of techniques.
This document together with EN 14654-1 covers the management and control of inputs from users.
It is applicable to drain and sewer systems from the point where wastewater leaves a building, roof drainage system, or paved area, to the point where it is discharged into a wastewater treatment plant or receiving water body.
Drains and sewers below buildings are included provided that they do not form part of the drainage system of the building.

This European Standard establishes requirements for the management and control of activities in drain and sewer systems outside buildings and specifies requirements for development and implementation of work programmes, and the selection of techniques.
This document covers the management and control of sewer cleaning.
It is applicable to drain and sewer systems from the point where wastewater leaves a building, roof drainage system, or paved area, to the point where it is discharged into a wastewater treatment plant or receiving water body.
Drains and sewers below buildings are included provided that they do not form part of the drainage system of the building.

This European Standard establishes requirements for the management and control of activities in drain and sewer systems outside buildings and specifies requirements for development and implementation of work programmes, and the selection of techniques.
This document covers general requirements for the management and control of activities.
It is applicable to drain and sewer systems from the point where wastewater leaves a building, roof drainage system, or paved area, to the point where it is discharged into a wastewater treatment plant or receiving water body.
Drains and sewers below buildings are included provided that they do not form part of the drainage system of the building.

This European Standard specifies:
a)   the field of application;
b)   the requirements of hose union anti vacuum valves;
c)   dimensional and physio-chemical properties, and properties of general hydraulic, mechanical and acous-tic design of hose union anti-vacuum valves of nominal sizes DN 15 up to and including DN 25;
d)   marking and technical product information.
This standard specifies the characteristics of hose union anti-vacuum valves of nominal size DN 15 up to and including DN 25 that are suitable for use in drinking water systems at pressures up to and including 1 MPa (10 bar) and temperatures up to and including 65 °C and for 1 h at 90 °C.
HB protects against back siphonage only and should be installed in vertical downward flowposition.
HB and HD anti-vacuum valves are for installation exclusively at the connecting point between stop valve and hose in vertical downward flow position.

This document specifies:
a)   field of application;
b)   requirements for in line anti-vacuum valves;
c)   dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of in-line anti-vacuum valves DN 10 to DN 50;
d)   test method and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of in-line anti-vacuum valves DN 10 to DN 50 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.

EN 12897:2016+A1 specifies the constructional and performance requirements and methods of test for indirectly heated, unvented (closed) storage water heaters of up to 2 000 l volume suitable for connection to a water supply at a pressure between 0,05 MPa and 1,0 MPa (0,5 bar and 10 bar), and fitted with control and safety devices designed to prevent the temperature of the stored drinking water from reaching 95 °C. Whilst storage water heaters intended primarily for direct heating are not covered by this document, it does allow the provision of electric heating elements for auxiliary use.

This document describes the installation rules that must be followed to ensure proper functioning of the drainage system depending on the specified performance of the sanitary appliances.
These performance characteristics of sanitary appliances (defined in the harmonized standards EN 997, EN 13407, EN 14688, EN 14528 and EN 14527) are explained and brought into line with the application rules of standard series EN 12056.
According to Regulation (EU) 305/2011, legally binding information on building requirements must be provided by the National Product Information Point. Therefore, additional national requirements are mentioned informatively where information is available.

This document specifies the connecting dimensions of WC pans and WC suites regardless of the materials used for their manufacture.
This document does not apply to siphonic action WC pans and WC suites.
NOTE 1   Other connecting dimensions are permitted, e. g. special designs of WC pans, if the manufacturer supplies or recommends the appropriate fittings.
NOTE 2   The shape of the appliance in the figures is for illustration only; it in no way prejudices the final shape of the appliance, which is left to the initiative of the manufacturer.

This document specifies the requirements for the structural design of water supply pipelines, drains
and sewers, and other water industry pipelines, whether operating at atmospheric, greater or lesser
pressure.
In addition, this document gives guidance on the application of the nationally established methods of
design declared by and used in CEN member countries at the time of preparation of this document.
This guidance is an important source of design expertise, but it cannot include all possible special cases,
in which extensions or restrictions to the basic design methods may apply.
Since in practice precise details of types of soil and installation conditions are not always available at
the design stage, the choice of design assumptions is left to the judgement of the engineer. In this
connection the guide can only provide general indications and advice.
This document specifies the requirements for structural design and indicates the references and the
basic principles of the nationally established methods of design (see Annexes A and B).

This document is applicable to iron-based coagulants used for treatment of water intended for human consumption. It specifies analytical methods to be used for products described in EN 888, EN 889, EN 890, EN 891 and EN 14664.

This European Standard specifies a procedure to determine the migration of substances from ion exchange, adsorbent or hybrid resin materials for use in contact with water intended for human consumption.
Resins comprise synthetic organic macromolecular materials.
This standard is applicable to resins of the following types:
-   ion exchange resins: used to modify the composition of water (e.g. softening by removal of calcium ions). They can be in either an anionic or cationic state;
-   adsorbent resins: used to lower the concentration of undesirable substances (usually organic pollutants) from water. They are used in a neutral state;
-   hybrid adsorbers: Organic polymer based ion exchange resin or adsorbent resin with incorporated inorganic (e.g. iron hydroxide) or second organic phase. Used to lower the concentration of undesirable substances (specific inorganic or organic pollutants) from water. They can be in either an anionic, cationic or neutral state.

This Technical Report defines terms commonly used in the field of membrane bioreactor technology.
This document aims at submerged MBR systems for the treatment of municipal wastewater with MBR Separate Systems and MBR Integrated Systems.
This document establishes general principles for MBR filtration systems interchangeability between different MBR filtration systems from different manufacturers.

This European Standard specifies "characteristics", test methods and procedures for evaluation of conformity for shower trays used for domestic purposes which ensure that the product, when installed, used and maintained in accordance with the manufacturer's instructions, will satisfy cleanability and durability when used for personal hygiene.
This standard is applicable to all sizes and shapes of shower trays.
This standard does not cover shower trays for use with medical provisions.
NOTE 1   For the purpose of this standard the term "domestic purposes" includes use in hotels, accommodation for students, hospitals and similar buildings.
NOTE 2   Annex A lists characteristics of materials commonly used for manufacturing shower trays.

This European Standard specifies "characteristics", test methods and procedures for evaluation of conformity for baths used for domestic purposes and personal hygiene, which ensure that the product, when installed and maintained in accordance with the manufacturer's instructions, will satisfy requirements for cleanability and durability.
This European Standard is applicable to all sizes and shapes of baths.
This European Standard does not cover baths for use with medical provisions.
NOTE 1   For the purpose of this standard the term "domestic purposes" includes use in hotels, accommodation for students, hospitals and similar buildings.
NOTE 2   Annex A lists characteristics of materials commonly used for manufacturing baths.

This European Standard specifies "characteristics" for whirlpool baths, having a rated voltage of not more than 250 V for single phase appliances and 480 V for other appliances, which are intended to be installed in indoor domestic situations and used in accordance with the manufacturer’s instructions for personal hygiene. Such whirlpool baths are tested and supplied as a complete independent unit designed to be drained down after every use. They may be transported in several separate parts, for assembly on site, to facilitate delivery.
Safety aspects of Whirlpool baths (except use by young children and slow moving/weak elderly or disabled individuals) are covered by EN 60335 2 60.
Exclusions: this standard does not cover additional requirements for whirlpool baths intended for uses where specific medical provisions are required, or whirlpool baths for communal uses where they are not drained down after every use. Portable whirlpool devices are not covered by this standard.
For the purposes of this standard the term ‘domestic situations’ includes use in hotels, accommodation for students, hospitals and similar buildings.
Warning: Slow moving elderly or disabled persons should take care when using whirlpool baths. Young children should not be allowed to use whirlpool baths without supervision.
NOTE 1   It is unrealistic to expect manufacturers to provide a definition of what constitutes a ‘slow moving elderly or disabled person’, or ‘young children’. The former is the responsibility of the individual or a carer. The latter is a parental responsibility.
NOTE 2   When EN 60335-2-60 is amended to cover use of whirlpool baths by slow moving elderly or disabled persons and young children the warning given above will be deleted from this standard.

This European Standard specifies "characteristics" for shower enclosures for domestic purposes which ensure that the product, when installed in accordance with the manufacturer's installation instructions, gives satisfactory performance when used as intended.
This European Standard does not apply to shower cabinets or curtains and does not specify aesthetic and dimensional "characteristics".
NOTE   For the purposes of this document the term "domestic purposes" includes use in hotels, accommodation for students, hospitals and similar buildings, except when special medical provisions are required.

This European Standard specifies a system for the classification of trenchless techniques for renovation, repair and replacement on the same line of drains and sewers outside buildings, operated under gravity or pressure, including pipes, connections and manholes. It defines and describes families of techniques and their different generic methods and materials used.
This European Standard does not apply for replacement by open trenching according to EN 1610 and trenchless construction and testing of drains and sewers as new construction off-the-line of the existing drain or sewer according to EN 12889.
This European Standard does not apply for the specification of requirements for specific products.
For each technique family it lists relevant existing standards, materials and applications and outlines characteristics including installation aspects, structural and hydraulic capabilities and site impact.
This standard does not apply to any work required on the existing pipe prior to renovation, repair or replacement.
This European Standard provides information needed to determine viable options for identification of the optimal technique with regard to a given set of renovation, repair or replacement objectives.
NOTE   It is the responsibility of the designer to choose and design the renovation and repair systems.
It does not specify the calculation methods to determine, for each viable technique, the required amount of material needed to secure the desired performance of the pipeline to be rehabilitated.

This European Standard specifies constructional and performance requirements together with test methods for close-coupled suites, one-piece and independent WC pans with integral trap used for personal hygiene manufactured from glazed ceramics or stainless steel.
This European Standard does not apply to squatting toilets, WC pans without integral trap or flushing cisterns as separate appliances.
In the case of independent WC pans, the associated flushing cisterns and pressure valves are covered by other standards and the reference to cisterns in this standard is related only to the definition and requirements of flushing volume.
In the case of close-coupled suites and one-piece WCs, this standard also specifies design, performance requirements and the test methods for designated flushing cisterns with flushing mechanisms, inlet valves and overflows. For these products, this standard covers flushing cisterns designed to be connected to drinking water installations inside buildings.
Before installation of WCs, EN 12056 2 and national requirements need to be taken into consideration.

This European Standard specifies design, performance requirements and the test methods for WC and urinal flushing cisterns with flushing mechanism, inlet valve and overflow.
This document covers flushing cisterns designed to be connected to drinking water installations inside buildings.
This standard does not cover automatic valveless siphon flushing cisterns for flushing urinals.
NOTE   Flushing cisterns for one-piece WCs and close-coupled suites are covered by EN 997.

This European Standard specifies the functional characteristics and test methods for wash basins for domestic purposes.
NOTE 1   For the purposes of this standard the term "domestic purposes" includes use in hotels, accommodation for students, hospitals and similar buildings, except when special medical provisions are required.
NOTE 2   All drawings are examples only. The shape of the appliance is left to the discretion of the manufacturer.

This European Standard specifies the functional requirements of and test methods for kitchen sinks for domestic purposes, which ensure that the product, when installed in accordance with the manufacturers’ instructions, gives satisfactory performance.
NOTE 1   For the purposes of this standard, the term "domestic purposes" includes use in hotels, accommodation for students, hospitals and similar buildings.
This document does not specify aesthetic requirements and the overall dimensions of kitchen sinks.
It does not apply to industrial kitchen sinks.
NOTE 2   All drawings are examples only; other forms are permissible.

This European Standard specifies constructional and performance requirements together with test methods for wall-hung urinals made of vitreous china or stainless steel that are used for personal hygiene.
This European Standard does not apply to slab and stall urinals nor to waterless urinals.

This European Standard specifies the functional requirements and test methods for bidets used for domestic purposes and made from either ceramics or stainless steel.
All drawings are examples only, other forms are permissible.
NOTE   For the purposes of this standard the term ‘domestic purposes‘ includes use in hotels, accommodation for students, hospitals and similar buildings, except when special medical provisions are required.

This document specifies requirements for the cleanability, load resistance and durability of communal washing troughs used for domestic purposes.
NOTE   For the purposes of this document, the term "domestic purposes" includes use in factory changing-rooms, sportsclubs, accommodation for students, hospitals and similar buildings, except when special medical provisions are required.

This European Standard specifies requirements for design, construction and acceptance testing of wastewater pumping systems in drain and sewer systems outside the buildings they are intended to serve. It includes pumping systems installations in drain and sewer systems that operate essentially under gravity as well as systems using either positive pressure or partial vacuum.
This document is applicable to vacuum drain and sewer systems.

This European Standard specifies requirements for design, construction and acceptance testing of wastewater pumping systems in drain and sewer systems outside the buildings they are intended to serve. It includes pumping systems installations in drain and sewer systems that operate essentially under gravity as well as systems using either positive pressure or partial vacuum.
This document is applicable to positive pressure systems.

This document is primary a guidance and shows instructions, explanations and examples for both preparation of declarations of performance and CE marking in accordance with 305/2011 EC. The guidance is expecialliy for harmonized standards of CEN/TC 163 e.g. EN 997, EN 12764, EN 13310, EN 13407, EN 14055, EN 14296, EN 14428, EN 14516, EN 14527, EN 14528 and EN 14688.
Products covered by these harmonised standards and therefore the CPR are WCs and WC suites, wirlpool baths, kitchen sinks, wall-hung urinals, WC and urinals flushing cisterns, communal washing troughs, shower enclosures, baths for domestic purposes, shower trays for domestic purposes, bidets and wash basins.
The relationship of the above mentioned standards with EU Construction Products Regulation can be found in the informative Annex ZA of the respective standard.
This document is guidance only and has no mandatory function. Legal requirements stated in 305/2011 EC and complementary delegated acts of EC e.g. 148/2014 EC and 574/2014 EC.
European legislation e.g. 305/2011 EC and delegated acts could be found at http://eur-lex.europa.eu/legal-content/EN/TXT/?qid=1492068177606&uri=CELEX:32011R0305 .
At the web pages of the European Commission DG GROWTH could be found an overview of existing legislation for 305 /2011 EC, the so called construction product Regualation (CPR). The webpage can be found at https://ec.europa.eu/growth/sectors/construction/product-regulation_en .

This European Standard specifies requirements for design, construction and acceptance testing of wastewater pumping systems in drain and sewer systems outside the buildings they are intended to serve. It includes pumping systems installations in drain and sewer systems that operate essentially under gravity as well as systems using either positive pressure or partial vacuum.
This document gives general requirements applicable to all wastewater pumping systems in drain and sewer systems.

This draft European Standard specifies the characteristics and the requirements of air gap with non-circular overflow (unrestricted) Family A, Type B for nominal flow velocity not exceeding 3 m/s. Air gaps are devices for protection of potable water in water installations from pollution by backflow. This draft European Standard applies to air gaps in factory-assembled products and to constructed air gaps in situ, and defines the physico-chemical characteristics of materials of construction used for the purpose and application to ensure compliance with this draft European Standard during normal working use.

This European Standard specifies the design, sizing, installation, identification, commissioning and maintenance of rainwater harvesting systems for the use of rainwater on-site as a substitute for potable water. This standard also specifies the minimum requirements for these systems.
Excluded from the scope of this standard are:
-   the use as drinking water,
-   decentralized attenuation,
-   infiltration.
NOTE   Conformity with the standard does not exempt from compliance of the obligations arising from local or national regulations.

This document is applicable to aluminium chloride basic, polyaluminium chloride hydroxide and polyaluminium chloride hydroxide sulfate used for treatment of water intended for human consumption. It describes the characteristics and specifies the requirements of aluminium chloride basic, polyaluminium chloride hydroxide and polyaluminium chloride hydroxide sulfate and refers to the corresponding analytical methods. It gives information for their use in water treatment. It also determines the rules relating to safe handling and use of these aluminium salts (see Annex B).

This draft European Standard is applicable to modified starches used for treatment of water intended for human consumption. It describes the characteristics of modified starches and specifies the requirements and the corresponding test methods for modified starches.

This European Standard specifies requirements for the design of drain and sewer systems outside buildings.
It is applicable to drain and sewer systems, which operate essentially under gravity, from the point where the wastewater leaves a building, roof drainage system, or paved area, to a point where it is discharged into a wastewater treatment plant or receiving water body.
This document specifies requirements for the hydraulic design of drain and sewer systems and the assessment of the capacity of existing drain and sewer systems.

This European Standard specifies the methods used for the chemical analyses and the determination of physical properties of calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxid calcium magnesium carbonate and dolomitic lime used to treat water for human consumption.
This document describes the reference methods and, in certain cases, an alternative method which can be considered to be equivalent. In the case of a dispute, only the reference methods are used.
Any other methods may be used provided they are calibrated, either against the reference methods or against internationally accepted reference materials, in order to demonstrate their equivalence.

This European Standard specifies general construction, performance and material requirements for PN 10 thermostatic mixing valves (TMV) and includes test methods for the verification of mixed water temperature performance at the point of use below 45 °C. This does not exclude the selection of higher temperatures where available. When these devices are used to provide anti-scald protection for children, elderly and disabled persons the mixed water temperature needs to be set at a suitable bathing temperature (body temperature – 38 °C) as children are at risk to scalding at lower temperatures than adults. This does not obviate the need for supervision of young children during bathing.
It applies to valves intended for use on sanitary appliances in kitchens, washrooms (incl. all rooms with sanitary tapware, e.g. toilets and cloakrooms) and bath rooms operating under the conditions specified in Table 1.
This standard allows TMVs to supply a single outlet or a small number of outlets in a “domestic” application (e.g. one valve, controlling a shower, bath, basin, bidet), excluding valves specifically designed for supplying a large number of outlets (i.e. for institutional use).
The tests described are type tests (laboratory tests) and not quality control tests carried out during manufacture.
(...)

This draft European Standard specifies general construction, performance and material requirements for PN 10 thermostatic mixing valves (TMV) and includes test methods for the verification of mixed water temperature performance at the point of use below 45 °C. This does not exclude the selection of higher temperatures where available. When these devices are used to provide anti-scald protection for children, elderly and disabled persons the mixed water temperature needs to be set at a suitable bathing temperature (body temperature – 38 °C) as children are at risk to scalding at lower temperatures than adults. This does not obviate the need for supervision of young children during bathing.
It applies to valves intended for use on sanitary appliances in kitchens, washrooms (incl. all rooms with sanitary tapware, e.g. toilet and cloakrooms) and bathrooms operating under the conditions specified in Table 1.
This draft standard allows TMVs to supply a single outlet or a small number of outlets in a “domestic” application (e.g. one valve, controlling a shower, bath, basin, bidet), excluding valves specifically designed for supplying a large number of outlets (i.e. for institutional use).
The tests described are type tests (laboratory tests) and not quality control tests carried out during manufacture.
(...)

This European Standard is applicable to single and mixer taps with automatic shut-off for use with
sanitary appliances installed in washrooms.
It does not apply to urinal or WC flushing valves or valves which open automatically.
The purpose of this standard is to specify the marking, identification, chemical/hygiene, dimensional,
leaktightness, pressure resistance, hydraulic, mechanical endurance, and acoustical characteristics of
automatic shut-off tapware.
The tests described in all the standard are type tests (laboratory tests) and not quality control tests
carried out during manufacture.

This European Standard is applicable to half-burnt dolomite used for treatment of water intended for human consumption. It describes the characteristics of half-burnt dolomite and specifies the requirements and the corresponding test methods for half-burnt dolomite. It gives information on its use in water treatment.

This European Standard sets out the objectives for drain and sewer systems outside buildings. It specifies the functional requirements for achieving these objectives and the principles for strategic and policy activities relating to planning, design, installation, operation, maintenance and rehabilitation.
It is applicable to drain and sewer systems, which operate essentially under gravity, from the point where wastewater leaves a building, roof drainage system, or paved area, to the point where it is discharged into a wastewater treatment plant or receiving water body.
Drains and sewers below buildings are included provided that they do not form part of the drainage system for the building.

This draft European Standard specifies requirements for the design, construction, performance, application and marking as well as test methods of factory made gullies with a light liquid closure for buildings.
Light liquid closures for buildings shall be applied to avoid uncontrolled discharge of light liquids into drainage systems in case of emergency.
This draft European Standard does not apply to installations for separation of light liquids covered by EN 858-1.

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 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 the requirements and test methods for materials, dimensions and function for flexible hose assemblies for drinking water installations, braided or not, designed for use with drinking water with an allowable maximum operating pressure (PMA) of 1 MPa and maximum operating temperature 70 °C to connect sanitary tap ware, heaters and similar appliances.
NOTE   Flexible hose assemblies intended to be used as integral parts of electrical appliances are covered by EN 61770.

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 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).