M/136 REV2 - Construction product in water
Revised mandate M/136 to CEN and CENELEC concerning the execution of standardisation work for harmonised standards on construction products in contact with water intended for human consumption related to the following end use: Transportation, storage and distribution up to, and including the consumer tap of the water intended for human consumption
Mandate M/136 REV2 is a revised request to CEN and CENELEC for the development of harmonised standards on construction products that come into contact with water intended for human consumption. The focus is on products used in the transportation, storage, and distribution of drinking water up to and including the consumer tap. This mandate aims to ensure the safety, quality, and compliance of construction materials and systems within the water supply chain, facilitating market access and regulatory alignment across the European Union. The decision involves the approval or disapproval of the updated mandate to support standardisation work under CEN/TC 165.
Purpose
The mandate M/136 REV2 aims to coordinate the standardisation work for construction products that come into contact with water intended for human consumption. It focuses particularly on products involved in the transportation, storage, and distribution of drinking water up to and including the consumer tap. The objective is to ensure these products are harmonised across the EU to guarantee safety, health, and quality standards.
Standardisation request
The request is addressed to the European standardisation organisations CEN (European Committee for Standardization) and CENELEC (European Committee for Electrotechnical Standardization). It mandates these bodies to develop harmonised standards that cover construction products involved in the transport, storage, and distribution of potable water, thereby ensuring compliance with EU regulations on water quality and consumer safety.
Expected deliverables
- Harmonised standards for construction products used in contact with drinking water systems up to the consumer tap.
- Standards that ensure safety, durability, and performance of materials and products to reduce risks associated with water contamination.
- Technical specifications that support regulatory frameworks related to water intended for human consumption.
Context
This revised mandate updates previous standardisation efforts under M/136. It supports EU legislation requiring harmonised standards to facilitate the free movement of construction products and to protect public health by ensuring safe water distribution systems. CEN Technical Committee 165 (CEN/TC 165), which specialises in products and systems for drinking water supply, is the key body referenced for the delivery of this mandate. This work aligns with broader EU objectives on water quality, public health, and market harmonisation in the construction sector.
The mandate covers standardisation work for harmonised standards on construction products that come into contact with water intended for human consumption. It focuses on products used for the transportation, storage, and distribution of water up to and including the consumer tap, ensuring safety and suitability of these products within the water supply chain.
General Information
This European Standard specifies the requirements and test methods for adhesives used for joining the components of unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C), acrylonitrile-butadiene-styrene (ABS) and styrene copolymer blends (PVC+SAN) thermoplastic piping systems for fluids under pressure, independent of the application area.
- Standard25 pagesEnglish languagee-Library read for1 day
This European Standard specifies a procedure for obtaining a migration water to determine odour and flavour for products made from organic materials intended to come in contact with water for human consumption (drinking water) and used in piping systems. Such products include pipes, fittings, ancillaries and coatings.
This standard is applicable to products to be used under various conditions for the transport, storage and distribution of water intended for human consumption and raw water used for the manufacture of water intended for human consumption.
This standard specifies a test method comprising of a set of procedures. The use may be dependent on the relevant national regulations and/or the system or product standards.
- Standard26 pagesEnglish languagee-Library read for1 day
This European Standard specifies the requirements and test methods for adhesives used for joining the components of unplasticized poly(vinyl chloride) (PVC-U), chlorinated poly(vinyl chloride) (PVC-C), acrylonitrile-butadiene-styrene (ABS) and styrene copolymer blends (PVC+SAN) thermoplastic piping systems for fluids under pressure, independent of the application area.
- Standard25 pagesEnglish languagee-Library read for1 day
This European Standard specifies a procedure for obtaining a migration water to determine odour and flavour for products made from organic materials intended to come in contact with water for human consumption (drinking water) and used in piping systems. Such products include pipes, fittings, ancillaries and coatings.
This standard is applicable to products to be used under various conditions for the transport, storage and distribution of water intended for human consumption and raw water used for the manufacture of water intended for human consumption.
This standard specifies a test method comprising of a set of procedures. The use may be dependent on the relevant national regulations and/or the system or product standards.
- Standard26 pagesEnglish languagee-Library read for1 day
This European Standard describes a method for detecting and identifying organic chemicals that are amenable to GC-MS analysis using the procedures described and which can migrate from a product into water intended for human consumption. This European Standard does not provide all the necessary tools to completely identify all the substances that are detected. A method of semi-quantitatively estimating the concentrations of the organic substances detected is also provided, however, concentrations should only be seen as indicative.
NOTE The method to be used for the preparation of migration waters is specified by separate EN's, as noted below.
- Standard34 pagesEnglish languagee-Library read for1 day
This European Standard specifies three methods for determining the ability of non-metallic materials to enhance the growth of micro-organisms.
This European Standard is applicable to those materials destined to be used under various conditions for the transport and storage of water intended for human consumption.
The standard allows for the testing of a single type of material, or a product in which only one material is in contact with water. It is unsuitable for use with assembled products where more than one material is exposed to water.
NOTE The results given by each method are not directly comparable.
- Standard65 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method for determining the chlorine demand of organic materials intended for use in contact with drinking water.
This European Standard is applicable to factory made and site applied products used for the distribution, transport and storage of drinking water.
This European Standard does not cover the use of high levels of chlorine to disinfect products when they are put into service.
- Standard17 pagesEnglish languagee-Library read for1 day
This European Standard describes a method for detecting and identifying organic chemicals that are amenable to GC-MS analysis using the procedures described and which can migrate from a product into water intended for human consumption. This European Standard does not provide all the necessary tools to completely identify all the substances that are detected. A method of semi-quantitatively estimating the concentrations of the organic substances detected is also provided, however, concentrations should only be seen as indicative.
NOTE The method to be used for the preparation of migration waters is specified by separate EN's, as noted below.
- Standard34 pagesEnglish languagee-Library read for1 day
This European Standard specifies a procedure to determine the migration of substances from factory-made or factory-applied products for use in contact with water intended for human consumption. Materials used to make such products include plastics, rubber and glassy (porcelain/vitreous enamel) materials.
This European Standard is applicable to products intended to be used under various conditions for the transport and storage of water intended for human consumption, including raw water used for the production of water intended for human consumption. It covers the extraction by water of substances from the finished products.
- Standard33 pagesEnglish languagee-Library read for1 day
This European Standard specifies the performance requirements for flexible couplings and adaptors and bushes for use with pipes and fittings in drain and sewer systems, usually operated under gravity and periodic hydraulic surcharge, both above and below ground inside or outside buildings and intended to connect pipes for:
- repair of damaged pipelines;
- connecting pipes of different materials and/or diameters;
- jointing short/cut lengths of pipe;
- jointing specific pipe systems;
- jointing post-inserted preformed junctions.
Typically a coupling consists of a moulded or extruded flexible sleeve with two clamping bands with or without a shear band. The clamping bands enable the sleeve to form a seal with the pipes to be jointed. The shear band gives resistance to shear forces. Connections may be made between pipes which cannot be satisfactorily jointed by a coupling alone, of dissimilar sizes or material, by using an appropriate bush or bushes with the coupling or by using an appropriate adaptor.
- Standard16 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method for determining the chlorine demand of organic materials intended for use in contact with drinking water.
This European Standard is applicable to factory made and site applied products used for the distribution, transport and storage of drinking water.
This European Standard does not cover the use of high levels of chlorine to disinfect products when they are put into service.
- Standard17 pagesEnglish languagee-Library read for1 day
This European Standard specifies three methods for determining the ability of non-metallic materials to enhance the growth of micro-organisms.
This European Standard is applicable to those materials destined to be used under various conditions for the transport and storage of water intended for human consumption.
The standard allows for the testing of a single type of material, or a product in which only one material is in contact with water. It is unsuitable for use with assembled products where more than one material is exposed to water.
NOTE The results given by each method are not directly comparable.
- Standard65 pagesEnglish languagee-Library read for1 day
This European Standard specifies a procedure to determine the migration of substances from factory-made or factory-applied products for use in contact with water intended for human consumption. Materials used to make such products include plastics, rubber and glassy (porcelain/vitreous enamel) materials.
This European Standard is applicable to products intended to be used under various conditions for the transport and storage of water intended for human consumption, including raw water used for the production of water intended for human consumption. It covers the extraction by water of substances from the finished products.
- Standard33 pagesEnglish languagee-Library read for1 day
This European Standard specifies a procedure to determine the release of metals from metallic materials used in construction products intended to come into contact with drinking water ).
The test can be used for three purposes:
a) assess a material as a reference material for a category of materials using the results of several investigations in different waters covering a broad range of water compositions;
b) assess a material for approval by way of comparative testing;
c) obtain data on the interaction of local water with a material.
- Standard30 pagesEnglish languagee-Library read for1 day
This European Standard specifies a procedure to determine the release of metals from metallic materials used in construction products intended to come into contact with drinking water ).
The test can be used for three purposes:
a) assess a material as a reference material for a category of materials using the results of several investigations in different waters covering a broad range of water compositions;
b) assess a material for approval by way of comparative testing;
c) obtain data on the interaction of local water with a material.
- Standard30 pagesEnglish languagee-Library read for1 day
This Technical Report describes a procedure, based on a diffusion model, to be applied to the estimation of specific migration of substances into drinking water from organic materials intended to come into contact with drinking water.
The modelling approach is readily applicable to certain organic materials, as explained in this report. In principle, the diffusion modelling approach is applicable to other organic materials but practical difficulties, in relation to obtaining data to feed into the diffusion model, may restrict or prevent its application. Accordingly, in addition to the diffusion model, scientific estimation procedures for the required data inputs need to be considered.
The approach is normally applicable to organic substances that are soluble in the material matrix. Substances applied externally to a product made of an organic material, e.g. antistatic agents, lubricants, etc. are excluded from the diffusion modelling approach, as are electrolytes, salts, oxides and metals. Only organic substances with well-defined molecular weight or mixtures with well-defined ranges of molecular weights are amenable to the diffusion modelling approach.
The diffusion modelling approach is readily applicable to amenable organic materials in the form of a pipe or a sheet, where data such as material thickness is readily calculable. More complicated product shapes, such as fittings, require assumptions to be made.
It may not be possible to model the effects of test waters that are chemically active, for example test waters to which chlorine has been added to simulate chlorinated drinking water. This is because substances that migrate from a material into water containing chlorine can be converted by chemical reaction into substances with different properties.
- Technical report33 pagesEnglish languagee-Library read for1 day
This Technical Report describes a procedure, based on a diffusion model, to be applied to the estimation of specific migration of substances into drinking water from organic materials intended to come into contact with drinking water.
The modelling approach is readily applicable to certain organic materials, as explained in this report. In principle, the diffusion modelling approach is applicable to other organic materials but practical difficulties, in relation to obtaining data to feed into the diffusion model, may restrict or prevent its application. Accordingly, in addition to the diffusion model, scientific estimation procedures for the required data inputs need to be considered.
The approach is normally applicable to organic substances that are soluble in the material matrix. Substances applied externally to a product made of an organic material, e.g. antistatic agents, lubricants, etc. are excluded from the diffusion modelling approach, as are electrolytes, salts, oxides and metals. Only organic substances with well-defined molecular weight or mixtures with well-defined ranges of molecular weights are amenable to the diffusion modelling approach.
The diffusion modelling approach is readily applicable to amenable organic materials in the form of a pipe or a sheet, where data such as material thickness is readily calculable. More complicated product shapes, such as fittings, require assumptions to be made.
It may not be possible to model the effects of test waters that are chemically active, for example test waters to which chlorine has been added to simulate chlorinated drinking water. This is because substances that migrate from a material into water containing chlorine can be converted by chemical reaction into substances with different properties.
- Technical report33 pagesEnglish languagee-Library read for1 day
This document specifies a procedure for obtaining a migration water to determine odour, flavour, colour and turbidity for products made from organic materials intended to come in contact with water for human consumption (drinking water) and used in piping and storage systems. Such products include pipes, tanks, reservoirs, fittings, ancillaries and their coatings both for site applied and factory-made products.
This document is applicable to products to be used under various conditions for the transport, storage and distribution of water intended for human consumption and raw water used for the manufacture of water intended for human consumption.
This document specifies a test method comprising a set of procedures. The use might be dependent on the relevant national regulations and/or the system or product standards.
- Draft27 pagesEnglish languagee-Library read for1 day
This document specifies a procedure for obtaining a migration water to determine odour, flavour, colour and turbidity for products made from organic materials intended to come in contact with water for human consumption (drinking water) and used in piping and storage systems. Such products include pipes, tanks, reservoirs, fittings, ancillaries and their coatings both for site applied and factory-made products.
This document is applicable to products to be used under various conditions for the transport, storage and distribution of water intended for human consumption and raw water used for the manufacture of water intended for human consumption.
This document specifies a test method comprising a set of procedures. The use might be dependent on the relevant national regulations and/or the system or product standards.
- Draft27 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method to determine the influence of factory made cementitious products on the odour, flavour, colour and turbidity of test waters after contact with the products.
This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes etc. intended to be used for the transport and storage of water for human consumption, including raw water used for the production of drinking water.
- Draft61 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method to determine the migration of substances from factory made cementitious products into test waters after contact with the products.
This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes, etc., intended to be used for the transport and storage of water intended for human consumption, including raw water used for the production of drinking water.
- Draft57 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method to determine the migration of substances from factory made cementitious products into test waters after contact with the products.
This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes, etc., intended to be used for the transport and storage of water intended for human consumption, including raw water used for the production of drinking water.
- Draft57 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method to determine the influence of factory made cementitious products on the odour, flavour, colour and turbidity of test waters after contact with the products.
This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes etc. intended to be used for the transport and storage of water for human consumption, including raw water used for the production of drinking water.
- Draft61 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method to determine the influence of factory made cementitious products on the odour, flavour, colour and turbidity of test waters after contact with the products.
This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes etc. intended to be used for the transport and storage of water for human consumption, including raw water used for the production of drinking water.
- Draft51 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method to determine the migration of substances from factory made cementitious products into test waters after contact with the products.
This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes, etc., intended to be used for the transport and storage of water intended for human consumption, including raw water used for the production of drinking water.
- Draft49 pagesEnglish languagee-Library read for1 day
test method provides information on metal release over time from metallic materials into drinking wtaer
- Draft5 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method to determine the migration of substances from factory made cementitious products into test waters after contact with the products.
This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes, etc., intended to be used for the transport and storage of water intended for human consumption, including raw water used for the production of drinking water.
- Draft49 pagesEnglish languagee-Library read for1 day
test method provides information on metal release over time from metallic materials into drinking wtaer
- Draft5 pagesEnglish languagee-Library read for1 day
This European Standard specifies a method to determine the influence of factory made cementitious products on the odour, flavour, colour and turbidity of test waters after contact with the products.
This European Standard is applicable to factory made cementitious products, e.g. cement mortar linings to metallic pipes, tanks, concrete pipes etc. intended to be used for the transport and storage of water for human consumption, including raw water used for the production of drinking water.
- Draft51 pagesEnglish languagee-Library read for1 day
This European Standard specifies the performance requirements for flexible couplings and adaptors and bushes for use with pipes and fittings in drain and sewer systems, usually operated under gravity and periodic hydraulic surcharge, both above and below ground inside or outside buildings and intended to connect pipes for:
- repair of damaged pipelines;
- connecting pipes of different materials and/or diameters;
- jointing short/cut lengths of pipe;
- jointing specific pipe systems;
- jointing post-inserted preformed junctions.
Typically a coupling consists of a moulded or extruded flexible sleeve with two clamping bands with or without a shear band. The clamping bands enable the sleeve to form a seal with the pipes to be jointed. The shear band gives resistance to shear forces. Connections may be made between pipes which cannot be satisfactorily jointed by a coupling alone, of dissimilar sizes or material, by using an appropriate bush or bushes with the coupling or by using an appropriate adaptor.
- Standard16 pagesEnglish languagee-Library read for1 day
This European Standard 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 standard, it does allow the provision of electric heating elements for auxiliary use.
- Standard32 pagesEnglish languagee-Library read for1 day
This European Standard 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 standard, it does allow the provision of electric heating elements for auxiliary use.
- Standard32 pagesEnglish languagee-Library read for1 day
Frequently Asked Questions
A European Standardization Mandate is a formal request from the European Commission to the European Standardization Organizations (CEN, CENELEC, and ETSI) to develop European standards (ENs) in support of EU legislation and policies. Mandates are issued under Regulation (EU) No 1025/2012 and help ensure that products and services meet the essential requirements set out in EU directives and regulations.
M/136 REV2 is a European Standardization Mandate titled "Revised mandate M/136 to CEN and CENELEC concerning the execution of standardisation work for harmonised standards on construction products in contact with water intended for human consumption related to the following end use: Transportation, storage and distribution up to, and including the consumer tap of the water intended for human consumption". Revised mandate M/136 to CEN and CENELEC concerning the execution of standardisation work for harmonised standards on construction products in contact with water intended for human consumption related to the following end use: Transportation, storage and distribution up to, and including the consumer tap of the water intended for human consumption There are 32 standards developed under this mandate.
Standards developed in response to a mandate and cited in the Official Journal of the European Union become "harmonized standards". Products manufactured in compliance with harmonized standards benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation, facilitating CE marking and market access across the European Economic Area.