This document specifies the test gases, test pressures and categories of appliances relative to the use of gaseous fuels of the first, second and third families. It serves as a reference document in the specific standards for appliances that fall within the scope of the Council Directive on the approximation of the laws of Member States concerning gas appliances 2009/142/EC.
The standard makes recommendations for the use of the gases and pressures to be applied for the tests. The full procedure will be given in the corresponding appliance standards.
NOTE   The test gases and the test pressures specified in this standard are in principle intended to be used with all the appliances in order to establish conformity with the corresponding standards.
However, the use of some test gases and test pressures may not be appropriate in the following cases:
-   appliances with nominal heat input greater than 300 kW;
-   appliances constructed on site;
-   appliances in which the final design is influenced by the user;
-   appliances constructed for use with high supply pressures (notably direct use of the saturated vapour pressure).
In these cases, the specific appliance standards may specify other test conditions in order to establish compliance with their requirements.

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This document presents guidelines for the implementation of Essential Requirements of Gas Appliances Regulation (EU) 2016/426 into hEN candidates for citation in the OJEU.
This document gives guidance that is additional to the CEN/CENELEC Internal Regulations, Part 3:2019, when this is necessary owing to the special requirements of gas appliances and fittings.
This document is intended for the drafting of gas appliances and fittings standards.

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This Technical Specification describes specific functional recommendations for the safe
design, handling, installation and operation of unplasticized polyamide (PA-U) gas piping
systems with fusion jointing and mechanical jointing with
a)  a maximum operating pressure (MOP) up to and including 16 bar;
b)  an operating temperature between -20 °C and +40 °C.
This Technical Specification covers PA pipes single layer solid wall.
This Technical Specification should be applied complementary to the functional requirements
in EN 12007-2.

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This European Standard gives details for the classification of gas  appliances according to the method of supplying combustion air  and of evacuating the products of combustion. […]  This European Standard is a guide for the harmonization of  products standards, for the preparation of installation standards  and for the common understanding of the types of gas Appliances.

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This document gives details for the classification of gas appliances according to the method of supplying combustion air and of evacuating the combustion products (types). This classification refers to gas appliances that are intended to be installed within buildings and/or outside of the building .
The document classifies appliances as type A, B or C according to the basic principle for the evacuation of the combustion products and air inlet.
This document is the reference for the harmonization of product standards, for the preparation of installation standards and for the common understanding of the types of gas appliances.
This document is neither an installation standard nor a product standard.
In references to a gas appliance or gas appliances connected via "its" or "their" duct or ducts, it is intended that the air inlet duct and/or the discharge duct for carrying any combustion products are part of the gas appliance. This means that such ducts are certified together with the gas appliance. Informative Annex C identifies appliance types that are designed for connection to separate chimney products, which may be part of the construction of the building.
In terms of this document, a "single duct" is a flue duct designed and capable of discharging the combustion products and/or air inlet duct for the air supply for only one appliance.
In terms of this document, a "common duct" is a flue duct designed and capable of discharging the combustion products and/or air inlet duct for the air supply for more than one appliance.

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This standard specifies requirements and associated test methods for rubber materials used in gas installations, gas equipment and gas appliances in contact with 1st, 2nd and 3rd family combustible gases as classified in EN 437 e.g. natural gas, LPG, bio methane bio LPG. It also establishes a classification based on temperature range and hardness. This standard is applicable to materials from which are manufactured homogeneous seals and homogeneous or reinforced diaphragms.
Since the dimensions and shape of the components differ from those of standard test pieces taken from sheet material as used for type testing of the rubber materials according to this standard, tolerances have been made in the requirements specified by Annex A for the components with respect to those specified for standard test pieces.
The range of operating temperatures covered by this standard is - 40 °C to + 150 °C.
This standard is not applicable for silicone rubber used either above 200 hPa (200 mbar) nominal pressure or at temperatures below 0 °C with 3rd family gases, as there is the possibility of condensation.

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This document, in conjunction with ISO 11299-1, specifies requirements and test methods for close-fit
lining systems intended to be used for the renovation of gas supply networks.
It applies to pipes and fittings, as manufactured, as well as to the installed lining system. It is applicable
to polyethylene (PE) pipe of either solid wall single layer or co-extruded layer construction, which is
reduced in the factory or on site to provide a close-fitting independent or interactive pressure pipe
liner, as well as associated fittings and joints for the construction of the lining system. This document is
not applicable for coated PE pipes having a peelable, contiguous, thermoplastics additional layer on the
outside of the pipes.
It is applicable to PE pipes, fittings and assemblies intended to be used at an operating temperature of
20 °C as the reference temperature.
NOTE For other operating temperatures, guidance is given in ISO 4437-5:2014.

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This document specifies the requirements and test methods for plastics piping systems intended to be
used for the renovation of underground gas supply networks. It is applicable to pipes and fittings, as
manufactured, as well as to the installed lining system. It is not applicable to the existing pipeline or
any sprayed coatings or annular filler.
This document gives the general requirements common to all relevant renovation techniques.

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This document, read in conjunction with Part 1, specifies requirements and test methods for pipes and fittings which are part of plastics piping systems installed as continuous pipes in the renovation of underground gas supply networks. It is applicable to polyethylene (PE) pipes of three different types: PE solid wall single layered pipes (nominal outside diameter, dn), including any identification stripes;
PE pipes with co-­‐extruded layers on either or both the outside and inside of the pipe (total outside diameter, dn), as specified  in Annex A, where all layers have the same MRS rating;
PE coated pipes (outside diameter, dn) having a peelable, contiguous, thermoplastics additional layer
on the outside of the pipe (“coated pipe”), see Annex A.
In addition it covers:
jointing of pipe lengths by means of butt fusion;
fabricated and injection-­‐moulded fittings made of PE;

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This European Standard specifies requirements on the development and implementation of a safety management system for operators of gas network with a maximum operating pressure up to and including 16 bar according to EN 12007 (all parts).
This European Standard refers to all activities and processes related to safety aspects and performed by a DSO including those activities entrusted to contractors.
The described safety management system is applicable to infrastructure for the distribution of processed, non-toxic and non-corrosive gas of the 2nd gas family as classified in EN 437, including injected gases from non-conventional sources.
NOTE   Gases from non-conventional resources can be bio methane, hydrogen, shale gas, synthetic gases and others.

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This document specifies requirements on the development and implementation of a safety management system for operators of a gas network with a maximum operating pressure up to and including 16 bar according to EN 12007 (all parts).
This document refers to all activities and processes related to safety aspects and performed by gas operators of a gas network with a maximum operating pressure up to and including 16 bar, including those activities entrusted to contractors. It includes safety-related provisions on operation of the gas network.
The described safety management system is applicable to infrastructure for the distribution of processed, non-toxic and non-corrosive gas of the 2nd gas family as classified in EN 437, including injected gases from non-conventional sources.
NOTE 1   Gases from non-conventional resources can be bio methane, hydrogen, shale gas, synthetic gases and others.
This document can also apply for gas infrastructure conveying only gases from non-conventional sources, such as bio methane grids or gases of the 3rd family as classified in EN 437.
For safety management and pipeline integrity management systems of gas networks with a maximum operating pressure above 16 bar generally EN 16348 applies.
NOTE 2   If minor sections of the gas network are operated with a maximum operating pressure above 16 bar, these can also be managed by an SMS according to this document. For the pipeline integrity management EN 16348 applies.
NOTE 3   If minor sections of a gas transmission network are operated with a maximum operating pressure up to and including 16 bar, this document or EN 16348 can be applied. In any case, for the pipeline integrity management system EN 16348 applies.
Specific requirements for occupational health and safety are excluded from this document. National legislation and other European and/or international standards, e.g. OHSAS 18001, apply.
This document specifies common basic principles for gas infrastructure. It is important that users of this standard are aware that more detailed national standards and/or code of practice may exist in the CEN member countries. This document is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles.
In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737 (all parts).
NOTE 4   CEN/TR 13737 (all parts) contains:
-   clarification of relevant legislation/regulations applicable in a country;
-   if appropriate, more restrictive national requirements;
-   national contact point for the latest information.

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To revise the Annex ZA, and the associated body text only, of EN 14236 to ensure the alignment with the Directive 2014/32/EU.

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To revise the Annex ZA, and the associated body text only, of EN 12405-1 to ensure the alignment with the Directive 2014/32/EU.

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To revise the Annex ZA, and the associated body text only, of EN 12405-1 to ensure the alignment with the Directive 2014/32/EU.

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This European Standard specifies requirements and tests for the construction, performance and safety of class 1,0 and class 1,5 battery powered ultrasonic gas meters (hereinafter referred to as meters), having co-axial single pipe, or two pipe connections, used to measure volumes of distributed fuel gases of the second and/or third family, as given in EN 437, at maximum working pressures not exceeding 0,5 bar ) and maximum actual flow rates of up to 10 m3/h over a minimum ambient temperature range of -10 °C to +40 °C, and minimum gas temperature span of 40 K, for domestic applications. This European Standard applies to meters where the measuring element and the register(s) are enclosed in the same case.
This European Standard applies to meters with and without built-in temperature conversion, that are installed in locations with vibration and shocks of low significance and in
-   closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity
or, if specified by the manufacturer,
-   open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity
and in locations with electromagnetic disturbances.
Unless otherwise stated, all pressures given in this European Standard are gauge pressures.
When more than one meter type is submitted for testing, then each meter type is required to be tested against this European Standard.
Clauses 1 to 15 and Annex C are for design and type testing only.
NOTE   See Annex A for production requirements.

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This document specifies the measuring conditions, requirements and tests for the construction,
performance and safety of class 1,0 axial and radial turbine gas meters with mechanical indicating
devices, herein after referred to as a meter(s), having in-line pipe connections for gas flow
measurement.
This document applies to turbine gas meters used to measure the volume of fuel gases of the 1st
and 2nd gas families, the composition of which is specified in EN 437, at maximum working
pressures up to 420 bar, actual flow rates up to 25 000 m3/h over a gas temperature range of at
least 40 K and for a climatic environmental temperature range of at least 50 K.
This document applies to meters that are installed in locations with vibration and shocks of low
significance and in
— closed locations (indoor or outdoor with protection as specified by the manufacturer) with
condensing or with non-condensing humidity
or, if specified by the manufacturer,
— open locations (outdoor without any covering) with condensing humidity or with noncondensing
humidity
and in locations with electromagnetic disturbances.
Unless otherwise specified in this document:
— all pressures used are gauge;
— all influence quantities, except the one under test, are kept relatively constant at their
reference value.

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This document specifies the measuring conditions, requirements and tests for the construction, performance and safety of class 1,0 axial and radial turbine gas meters with mechanical indicating devices, herein after referred to as a meter(s), having in-line pipe connections for gas flow measurement.
This document applies to turbine gas meters used to measure the volume of fuel gases of the 1st and 2nd gas families, the composition of which is specified in EN 437, at maximum working pressures up to 420 bar, actual flow rates up to 25 000 m³/h over a gas temperature range of at least 40 K and for a climatic environmental temperature range of at least 50 K.
This document applies to meters that are installed in locations with vibration and shocks of low significance and in
-   closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity
or, if specified by the manufacturer,
-   open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity
and in locations with electromagnetic disturbances.
Unless otherwise specified in this document:
-   all pressures used are gauge;
-   all influence quantities, except the one under test, are kept relatively constant at their reference value.

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This European Standard specifies ranges, construction, performances, output characteristics and testing of rotary displacement gas meters (hereinafter referred to as RD meters or simply meters) for gas volume measurement.
This European Standard applies to rotary displacement gas meters used to measure the volume of fuel gases of at least the 1st, 2nd and 3rd gas families, the composition of which is specified in EN 437:2003+A1:2009, at a maximum working pressure up to and including 20 bar over an ambient and gas temperature range of at least −10 °C to +40 °C.
This European Standard applies to meters that are installed in locations with vibration and shocks of low significance (class M1) and in
-   closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity
or, if specified by the manufacturer,
-   open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity,
and in locations with electromagnetic disturbances (class E1 and E2). The standards apply to mechanical meters with mechanical index, electronic devices are not covered by this standard.
Unless otherwise specified in this standard:
-   all pressures used are gauge;
-   all influence quantities, except the one under test, are kept relatively constant at their reference value.
This European Standard applies to meters with a maximum allowable pressure PS and the volume V of less than 6 000 bar · litres or with a product of PS and DN of less than 3 000 bar.
This European Standard can be used for both pattern approval and individual meter testing. Cross-reference tables are given in:
-   Annex A for the tests that need to be undertaken for pattern approval;
-   Annex B for individual meter testing.
Some parts of this standard cover meters with mechanical index only.
The risk philosophy adopted in this standard is based on the analysis of hazards including pressure. The standard applies principles to eliminate or reduce hazards. Where these hazards cannot be eliminated appropriate protection measures are specified.

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This European Standard specifies ranges, construction, performances, output characteristics and testing of rotary displacement gas meters (hereinafter referred to as RD meters or simply meters) for gas volume measurement.
This European Standard applies to rotary displacement gas meters used to measure the volume of fuel gases of at least the 1st, 2nd and 3rd gas families, the composition of which is specified in EN 437:2003+A1:2009, at a maximum working pressure up to and including 20 bar over an ambient and gas temperature range of at least −10 °C to +40 °C.
This European Standard applies to meters that are installed in locations with vibration and shocks of low significance (class M1) and in
-   closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity
or, if specified by the manufacturer,
-   open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity,
and in locations with electromagnetic disturbances (class E1 and E2). The standards apply to mechanical meters with mechanical index, electronic devices are not covered by this standard.
Unless otherwise specified in this standard:
-   all pressures used are gauge;
-   all influence quantities, except the one under test, are kept relatively constant at their reference value.
This European Standard applies to meters with a maximum allowable pressure PS and the volume V of less than 6 000 bar · litres or with a product of PS and DN of less than 3 000 bar.
This European Standard can be used for both pattern approval and individual meter testing. Cross-reference tables are given in:
-   Annex A for the tests that need to be undertaken for pattern approval;
-   Annex B for individual meter testing.
Some parts of this standard cover meters with mechanical index only.
The risk philosophy adopted in this standard is based on the analysis of hazards including pressure. The standard applies principles to eliminate or reduce hazards. Where these hazards cannot be eliminated appropriate protection measures are specified.

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This European Standard specifies the requirements and tests for the construction, performance, safety and production of class 1,5 diaphragm gas meters (referred to as meters) having co-axial single pipe, or two pipe connections, used to measure volumes of fuel gases of the 1st, 2nd and 3rd families in accordance with EN 437:2003+A1:2009, at maximum working pressures not exceeding 0,5 bar and maximum actual flow rates not exceeding 160 m3/h over a minimum ambient and gas temperature range of −10 °C to +40 °C.
This standard applies to meters with and without built-in temperature conversion that are installed in locations with vibration and shocks of low significance and in
-   closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity
or, if specified by the manufacturer,
-   open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity
-   in locations with electromagnetic disturbances corresponding to those likely to be found in residential, commercial and light industrial buildings.
Unless otherwise stated, all pressures given in this document are gauge pressure.
Clauses 1 to 9 and Annex B and Annex D are for design and type testing only.
Requirements for electronic indexes, batteries, valves incorporated in the meter and additional functionalities are given in EN 16314.
NOTE   The content of OIML Publications 'International Recommendation R 137' has been taken into account in the drafting of this standard.
Significant changes from previous editions include:
   conformity with the MID 2009/137/EC regarding declared errors of the same sign and testing Qmin at the minimum and maximum declared gas temperatures;
-   corrosion protection restructured;
-   endurance testing revised to reflect more accurately current operating conditions;
-   requirements for non-metallic meters for external use added to take account of different material characteristics;
-   provision for meters with electronic indexes and integrated shut-off valves;
-   adhesion testing of labels;
Annex A has been restructured to give additional requirements for meters provided with a built-in gas temperature conversion device.
If no specific requirements are given for test equipment, the instruments used should be traceable to a national or international reference standard and the uncertainty (2s) should be better than 1/5 of the maximum value of the parameter to be tested. For differential results the repeatability (2s)/resolution should be better than 1/5 of the maximum value of the issue to be tested.

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This European Standard specifies the requirements and tests for the construction, performance, safety and production of class 1,5 diaphragm gas meters (referred to as meters). This applies to meters with co-axial single pipe, or two pipe connections, that are used to measure volumes of fuel gases, which are within the limits of test gases of the 1st, 2nd and 3rd families described in EN 437. The meters have maximum working pressures not exceeding 0,5 bar and maximum actual flow rates not exceeding 160 m3.h−1 over a minimum ambient temperature range of −10 °C to 40 °C and a gas temperature range as specified by the manufacturer with a minimum range of 40 K.
This standard applies to meters with and without built-in temperature conversion that are installed in locations with vibration and shocks of low significance (see MID Annex 1 Chapter 1.3.2 (a), class M1). It also applies to meters in:
-   closed locations (indoor or outdoor with protection as specified by the manufacturer) both with condensing humidity or with non-condensing humidity;
or, if specified by the manufacturer:
-   open locations (outdoor without any covering) both with condensing humidity and with non-condensing humidity;
-   in locations with electromagnetic disturbances corresponding to those likely to be found in residential, commercial and light industrial buildings (see MID Annex 1 Chapter 1.3.3 (a), class E1).
Unless otherwise stated, all pressures given in this document are gauge pressure.
Requirements for electronic indexes, batteries, valves incorporated in the meter and other additional functionalities are given in EN 16314.
Unless otherwise stated in a particular test, the tests are carried out on meters that include additional functionality devices intended by the manufacturer.
Clauses 1 to 9 and Annexes B and C are for design and type testing only.
NOTE   The content of OIML Publication 'International Recommendation R 137' has been taken into account in the drafting of this standard.
If no specific requirements are given for test equipment, the instruments used should be traceable to a national or international reference standard and the uncertainty (2σ) should be better than 1/5 of the maximum value of the parameter to be tested. For differential results the repeatability (2σ)/resolution should be better than 1/5 of the maximum value of the parameter to be tested.

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This Technical Report gives recommendations to ensure the quality and safety of domestic gas installations. This Technical Report covers pipe work, appliances installation, their combustion air supply and flue products exhaust commissioning, inspection and maintenance activities carried out by operatives.
This document addresses the following three main factors, which have an influence on gas safety in general:
a)   quality and safety of components of gas installations and gas appliances,
b)   quality of the work when gas installations are constructed and commissioned,
c)   inspection and maintenance of installations and gas appliances.
Potential ways in which individual competence of operatives and/or businesses can be assured and mutually recognized between Member States are considered.
The means of assuring responsible behaviour of consumers is not covered in this document.
It does not address metering or non-domestic (industrial and commercial) installations.

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This European Standard specifies the safety, design, construction and performance requirements for Temperature Control Function (TCF) and Combustion Product Discharge Safety Device (TTB) intended for use with burners and appliances using gaseous or liquid fuels.
It also describes the test procedures for checking compliance with these requirements.
This European Standard is applicable to AC and DC supplied TCF and TTB (for TCF and TTB supplied by stand-alone battery system, battery systems for mobile applications or systems which are intended to be connected to DC supply networks, see Annex I).
This European Standard is applicable to electronically based TTB and TCF only.

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This Technical Report gives recommendations to ensure the quality and safety of domestic gas installations. This Technical Report covers pipe work, appliances installation, their combustion air supply and flue products exhaust commissioning, inspection and maintenance activities carried out by operatives.
This document addresses the following three main factors, which have an influence on gas safety in general:
a)   quality and safety of components of gas installations and gas appliances,
b)   quality of the work when gas installations are constructed and commissioned,
c)   inspection and maintenance of installations and gas appliances.
Potential ways in which individual competence of operatives and/or businesses can be ensured and mutually recognized between Member States are considered.
The means of assuring responsible behaviour of consumers is not covered in this document.
It does not address metering or non-domestic (industrial and commercial) installations.

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1.1 This European standard specifies the general requirements for the construction, performance and safety of ball valves and closed bottom taper plug valves. It also details the test methods and marking requirements.
It applies to metallic valves for domestic and commercial not directly buried installations inside or outside of buildings, using gases of the first, second and third family (specified in EN 437) and working up to
0,2 105 Pa, 0,5 105 Pa, 1 x 105Pa. 5 105 Pa and 20 x 105Pa.
NOTE   "Not directly buried" within the context of this standard means that valves below ground are not in direct contact with earth or other materials e.g. that they are in a protected encasement.
1.2 Valve nominal sizes (DN) covered by this European standard are as follows: 6, 8, 10, 12, 15, 20, 25, 32, 40, 50.

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This European Standard specifies functional requirements for the design, construction, testing, commissioning/decommissioning, operation, maintenance and where appropriate calibration, together with suitable documented provisions for all new gas measuring systems and any major changes of existing systems.
This European Standard also specifies accuracy classes of measuring systems and thresholds applicable to these classes. Demonstration of compliance is achieved through the selection, installation and operation of appropriate measurement instruments, together with suitable documented provisions for calculations. Examples of demonstration of compliance are provided for each accuracy class; however, they are not prescriptive solutions.
This European Standard is applicable for gases of the 2nd family as classified in EN 437. It is also applicable for treated non-conventional combustible gases complying with EN 437 and for which a detailed technical evaluation of the functional requirements (such as injected biomethane) is performed ensuring there are no other constituents or properties of the gases that can affect the metrological and physical integrity of the measuring systems.
This European Standard can also be used as a guideline for 1st and 3rd family gases as classified in EN 437; however additional considerations should be taken with regard to the different constituents and physical characteristics of the gas family.
This European Standard is not applicable for raw or sour gases.
This European Standard is not applicable for gas measurement in CNG filling station.
This European Standard gives guidelines when designing, installing and operating gas meters with additional functionalities (smart meters).
Unless otherwise specified all pressures used in this European Standard are gauge pressures.
For associated pressure regulating systems the requirements of EN 12186 and/or EN 12279 apply.
For requirements on design, housing, lay-out, materials for components, construction, ventilation, venting and overall safety of gas measuring systems within the scope of this European Standard, EN 15001, EN 12186, EN 12279 and/or EN 1775 apply additionally, where relevant.
This European Standard specifies common basic principles for gas infrastructure. Users of this European Standard should be aware that more detailed national standards and/or codes of practice may exist in the CEN member countries.
This European Standard is intended to be applied in association with these national standards and/or codes of practice setting out the above mentioned basic principles.
In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this European Standard, national legislation/regulation takes precedence as illustrated in CEN/TR 13737 parts 1 and 2.
CEN/TR 13737 (all parts) gives:
   clarification of all legislation/regulations applicable in a member state;
   if appropriate, more restrictive national requirements;
   a national contact point for the latest information.

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Part 3 of this Standard specifies the requirements and tests for the construction, performance, safety and conformity of flow computers used to meet the metrological and technical requirements of a high accuracy volume conversion device.

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This European Standard specifies methods for the classification and assessment of function blocks designed to operate burners and appliances burning gaseous or liquid fuels, with particular regards to their fault behaviour and preventative measures.
This European Standard is applicable to control function blocks, not covered by a dedicated control standard (e.g. EN 88-1:2011, EN 88-2:2007, EN 125:2010, EN 126:2004, EN 161:2011, EN 257:2010, EN 298:2003, EN 1106:2010, EN 1643:2000, EN 1854:2010, EN 12067-2:2004, prEN 16304:2011 and prEN 16340:2011, EN ISO 23553-1:2009).

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Part 3 of this European Standard specifies the requirements and tests for the construction, performance, safety and conformity of flow computers (FCs) used to meet the metrological and technical requirements of a high accuracy volume conversion device.
They are used to determine volume of fuel gases, including those of the first and second families according to EN 437.
For the purpose of this European Standard, only flow computers that are intended to operate with ultrasonic meters according to ISO 17089 1 or gas turbine meters conforming to EN 12261 are considered.
For the purpose of this European Standard only classification classes E2 and M1 are considered for the flow computer calculator.
FCs are equipped with external separate transducers for pressure and temperature which may be approved separately.
The provisions concerning pressure and temperature transducers are given in Annex B and C.
Requirements and tests are given for energy calculator in EN 12405 2.

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This European Standard specifies methods for the classification and assessment of function blocks designed to operate burners and appliances burning gaseous or liquid fuels with particular regards to their fault behaviour and preventative measures.
This European Standard is applicable to control function blocks, not covered by a dedicated control standard (e.g. EN 88-1:2011, EN 88-2:2007, EN 125:2010, EN 126:2012, EN 126:2012/prA1:2014, EN 161:2011+A3:2013, EN 257:2010, EN 298:2012, EN 1106:2010, EN 1643:2014, EN 1854:2010, EN 12067-2:2004, EN 16304:2013 and EN 16340:2014, EN ISO 23553-1:2014).

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This European Standard describes the specific functional requirements for steel pipelines in addition to the general functional requirements of EN 12007-1 for maximum operating pressures up to and including 16 bar. This European Standard specifies common basic principles for gas supply systems. Users of this European Standard should be aware that more detailed national standards and/or codes of practice can exist in the CEN member countries.
This European Standard specifies common basic principles for gas infrastructure. Users of this standard should be aware that more detailed national standards and/or codes of practice may exist in the CEN member countries.
This European Standard is intended to be applied in association with these national standards and/or codes of practice setting out the above mentioned basic principles.
In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this standard, national legislation/regulation takes precedence as illustrated in CEN/TR 13737 (all parts).
CEN/TR 13737 (all parts) gives:
-  clarification of all legislation/regulations applicable in a member state;
-  if appropriate, more restrictive national requirements;
-  a national contact point for the latest information.

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This Technical Report contains, for each country affected, a national page where the relevant national legislation/regulations for the field of gas infrastructure are listed. The national page can further contain the relevant national standards and/or codes of practice and national bodies which can act as further sources of information, if an interested party needs further guidance.
The national page can, if necessary, indicate any requirements in the national legislation/regulations that are more stringent than those in the European Standards prepared by CEN/TC 234. This is done however without giving any details.
This does not apply to requirements contained in clauses that are harmonized to any new approach directive.
This Technical Report is intended to be a guideline for the national implementation of the functional European Standards elaborated by CEN/TC 234 "Gas infrastructure".

  • Technical report
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  • Technical report
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This Technical Report applies to safety and operational topics for equipment and pipework systems installed within industrial premises which may be used for process and non-process applications such as Heating, Power Generation, Incineration, etc.
It is applicable to a range of combustible gases used within an industrial environment. The gas plant may include normal combustion with air and/or oxygen, catalytic oxidation or cracking (e.g. as in a refinery).
The user of gas equipment and pipework systems has a responsibility to ensure the safety of the design, of plant operation and plant maintenance.
For piped supplies of gas to a site this Technical Report applies to the system downstream of the ‘point of delivery’. The term, ‘point of delivery’ refers to the isolation valve (or combination of regulator and isolation valve) located before or after the metering station, as will be defined by the particular EU member state national legislation.
The guidance in this Technical Report may also apply to gases generated for the sites own use, such as coke oven gas, site bio-gas plant, site LPG/air plant etc.

  • Technical report
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  • Technical report
    57 pages
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This Technical Report contains, for each country affected, a national page where the relevant national legislation/regulations for the field of gas infrastructure are listed. The national page can further contain the relevant national standards and/or codes of practice and national bodies which can act as further sources of information, if an interested party needs further guidance.
The national page can, if necessary, indicate any requirements in the national legislation/regulations that are more stringent than those in the European Standards prepared by CEN/TC 234. This is done however without giving any details.
This does not apply to requirements contained in clauses that are harmonized to any new approach directive.
This Technical Report is intended to be a guideline for the national implementation of the functional European Standards elaborated by CEN/TC 234 "Gas infrastructure".

  • Technical report
    209 pages
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  • Technical report
    205 pages
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This Technical Report applies to safety and operational topics for equipment and pipework systems installed within industrial premises which may be used for process and non-process applications such as Heating, Power Generation, Incineration, etc.
It is applicable to a range of combustible gases used within an industrial environment. The gas plant may include normal combustion with air and/or oxygen, catalytic oxidation or cracking (e.g. as in a refinery).
The user of gas equipment and pipework systems has a responsibility to ensure the safety of the design, of plant operation and plant maintenance.
For piped supplies of gas to a site this Technical Report applies to the system downstream of the ‘point of delivery’. The term, ‘point of delivery’ refers to the isolation valve (or combination of regulator and isolation valve) located before or after the metering station, as will be defined by the particular EU member state national legislation.
The guidance in this Technical Report may also apply to gases generated for the sites own use, such as coke oven gas, site bio-gas plant, site LPG/air plant etc.

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  • Technical report
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This standard describes the specific functional recommendations for service lines in addition to the general functional recommendations of EN 12007-1 for: a) a maximum operating pressure (MOP) up to and including 16 bar; b) an operating temperature between -20 °C and +40 °C. The service line is the physical asset comprising of the pipeline from the gas main Branch Saddle or Top Tee to the outlet of the Distribution Operator’s nominated point(s) of delivery (for example: isolation valve, regulator, meter connection or combination of regulator and isolation valve). The ownership and operation responsibility may vary between member states. Consult Figure 1 (A/B/C) and member state regulations and standards. This standard includes technical recommendations in relation to design, construction, operation, maintenance and abandonment of the service line asset. Detail in relation to buried pipework, gas pressure regulating installations and gas metering systems are addressed in other standards. NOTE 1 For more information on buried pipework, see EN 12007-1, EN 12007-2 and EN 12007-3. NOTE 2 For more information on gas pressure regulating installations, see EN 12186 and EN 12279. NOTE 3 For more information on gas metering systems, see EN 1776.

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ISO 17484-1:2014 specifies the general requirements and the performance requirements for multilayer pipe systems based on pipes, fittings and their joints intended to be used for gas supply within buildings. PE-X and PE pipes composed of one stress-designed layer, adhesive and a barrier layer are also covered by ISO 17484-1:2014. ISO 17484-1:2014 gives guidance for the design of piping systems consisting of multilayer pipes based on thermoplastics, for which at least 60 % of the wall thickness is polymeric material. Polymeric materials intended for stress-designed layers and all inner layers are required to be polyethylene (PE) and/or crosslinked polyethylene (PE-X) in accordance with Annex A of ISO 17484-1:2014. ISO 17484-1:2014 applies to systems that operate at temperatures of −20 °C up to +60 °C. For the purpose of ISO 17484-1:2014, crosslinked polyethylene (PE-X) and adhesive layers are considered as thermoplastic materials. For sizes greater than 63 mm the requirements of ISO 18225 have to be fulfilled in addition. ISO 17484-1:2014 is applicable for piping systems used in buildings to supply gas with a maximum operating pressure up to and including 500 kPa (5 bar). ISO 17484-1:2014 applies to the following fuels: Category D gaseous fuel: natural gas; Category E gaseous fuel: LPG vapour, and natural gas or LPG vapour.

  • Standard
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  • Standard
    33 pages
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  • Standard
    33 pages
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This European Standard contains requirements for the production and testing of weld joints for the installation and modification of onshore steel pipelines and pipework used in gas infrastructure, including in-service pipelines, for all pressure ranges for the carriage of processed, non-toxic and non-corrosive natural gas according to EN ISO 13686 and for the carriage of non-conventional gases such as injected biomethane, where
— the pipeline elements are made of unalloyed or low-alloyed carbon steel;
— the pipeline is not located within commercial or industrial premises as integral part of the industrial process on those premises except for any pipelines and facilities delivering gas to such premises;
— the pipework is not located within household installations according to EN 1775;
— the design temperature of the system is between -40 °C up to and including 120 °C. The onshore steel pipelines and pipework used in gas infrastructure include in-service pipelines, for all pressure ranges for the carriage of processed, non-toxic and non-corrosive natural gas according to EN ISO 13686 and for the carriage of non-conventional gases complying with EN ISO 13686, and for which a detailed technical evaluation of the functional requirements (such as injected biomethane) is performed ensuring there are no other constituents or properties of the gases that can affect the integrity of the pipeline. This standard is not applicable to welds produced prior to the publication of this European Standard. Table 1 assigns the application areas to quality requirement categories as a

  • Standard
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This European Standard specifies requirements which enable a Transmission System Operator (TSO) to develop and implement a safety management system including an integrity management system specifically for pipelines. The SMS is applicable to infrastructure for the transmission of processed, non-toxic and non-corrosive natural gas according to EN ISO 13686 and injected bio methane, where: - the pipeline elements are made of unalloyed or low-alloyed carbon steel; - the pipeline elements are joined by welds, flanges or mechanical joints. This European Standard specifies requirements which enable a Transmission System Operator (TSO) to develop and implement a safety management system including an integrity management system specifically for pipelines. The SMS is applicable to infrastructure for the transmission of processed, non-toxic and non-corrosive natural gas according to EN ISO 13686 and injected bio methane, where: - the pipeline elements are made of unalloyed or low-alloyed carbon steel; - the pipeline elements are joined by welds, flanges or mechanical joints.

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This European Standard specifies the additional requirements and tests for gas meters with a maximum capacity of 40 m3/h and a maximum operating pressure of not exceeding 500 mbar, conforming to EN 1359, EN 12261, EN 12480, EN 12405 and EN 14236, which have battery powered devices providing additional functionalities that form part of the gas meter (hereafter referred to as meter) or contained in an Additional Functionality Device (AFD). It also covers the additional requirements when an electronic index is used rather that a mechanical one. Where the option of an integral valve to the meter is specified, this standard only gives requirements for meters having a maximum capacity not exceeding 10 m3/h. This European Standard is applicable to first, second and third family gases according to EN 437. This European Standard specifies the construction requirements for electronic components but communication protocols are dealt within other European Standards, e.g. appropriate parts of EN 13757. This European Standard applies to AFDs that are installed in locations with vibration and shocks of low significance and in: - closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity, or, if specified by the manufacturer: - open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity, - locations liable to temporary saturation, and in locations with electromagnetic disturbances corresponding to those likely to be found in residential, commercial buildings or similar buildings. This European Standard does not cover the changing of metrological software within the meter or the upload/download of metrological software. This European Standard only covers valves integral to the meter.

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This European Standard is applicable to pipelines with a maximum operating pressure (MOP) over 16 bar for the carriage of processed, non-toxic and non-corrosive natural gas according to EN ISO 13686 in onland gas infrastructure. This European Standard is also applicable to pipelines with a maximum operating pressure (MOP) over 16 bar for the carriage of non-conventional gases such as injected biomethane, complying with EN ISO 13686 and for which a detailed technical evaluation of the functional requirements is performed ensuring there are no other constituents or properties of the gases that can affect the integrity of the pipeline. Onland gas infrastructure is where: - pipeline elements are made of unalloyed or low-alloyed carbon steel; - pipeline elements are joined by welds, flanges or mechanical couplings; - the pipeline is not located within commercial or industrial premises as an integral part of the industrial process on these premises except for any pipelines and facilities supplying such premises; - the design temperature of the system is between -40 °C and 120 °C inclusive. This European Standard applies to onshore pipeline systems from the point where the pipeline first crosses what is normally accepted as battery limit between on and offshore, e.g.: - first isolation valve; - the base of steep sea shelf; - above the high water/low water mark onto mainland; - an island. This European Standard also applies to a pipeline system with a starting point onshore, also when parts of the pipeline system on the mainland subsequently cross fjords, lakes etc. This European Standard does not apply to existing pipelines, in use prior to the publication of this European Standard, nor to modifications to existing pipelines. Gas infrastructures covered by this European Standard begin after the gas producer's metering station. The functional demarcation of the pipeline system within a plant area will be determined from case to case. Generally speaking, this will be directly after the first isolating valve of the installation. This European Standard also describes the mechanical requirements for pipework in stations with a maximum operating pressure greater than 16 bar. Welding requirements are described in a special application standard on welding for gas infrastructures EN 12732. Functional requirements for stations are given in: EN 1776, Gas supply systems - Natural gas measuring stations - Functional requirements EN 1918-5, Gas supply systems - Underground gas storage - Part 5: Functional recommendations for surface facilities EN 12186, Gas supply systems - Gas pressure regulating stations for transmission and distribution - Functional requirements EN 12583, Gas supply systems - Compressor stations - Functional requirements

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  • Draft
    93 pages
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This European Standard specifies the additional requirements and tests for gas meters with a maximum capacity of 40 m3/h and a maximum operating pressure of not exceeding 500 mbar, conforming to EN 1359, EN 12261, EN 12480, EN 12405 and EN 14236, which have battery powered devices providing additional functionalities that form part of the gas meter (hereafter referred to as meter) or contained in an Additional Functionality Device (AFD). It also covers the additional requirements when an electronic index is used rather that a mechanical one. Where the option of an integral valve to the meter is specified, this standard only gives requirements for meters having a maximum capacity not exceeding 10 m3/h.
This European Standard is applicable to first, second and third family gases according to EN 437.
This European Standard specifies the construction requirements for electronic components but communication protocols are dealt within other European Standards, e.g. appropriate parts of EN 13757.
NOTE   This European Standard covers connections to auxiliary devices but not the requirements for these devices.
This European Standard applies to AFDs that are installed in locations with vibration and shocks of low significance and in:
-   closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity,
or, if specified by the manufacturer:
-   open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity,
-   locations liable to temporary saturation,
and in locations with electromagnetic disturbances corresponding to those likely to be found in residential, commercial buildings or similar buildings.
This European Standard does not cover the changing of metrological software within the meter or the upload/download of metrological software.
This European Standard only covers valves integral to the meter.

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This Technical Specification gives guidance for the assessment of conformity of compounds, products, joints and assemblies in accordance with the applicable part(s) of EN 1555 intended to be included in the manufacturer’s quality plan as part of the quality management system and for the establishment of certification procedures. It is recommended that the quality management system conforms to or is no less stringent than the relevant requirements to EN ISO 9001 [2]. NOTE 1 If certification is involved, the certification and inspection body is preferably compliant with EN 45011 [3], EN 45012 [4] or EN ISO/IEC 17020 [5], as applicable. In conjunction with Parts 1 to 5 of EN 1555 (see Foreword), this Technical Specification is applicable to polyethylene (PE) plastics piping systems for the supply of gaseous fuels. It is applicable to PE pipes, fittings, and valves, their joints and to joints with components of other materials intended to be used under the following conditions:
a) a maximum operating pressure, MOP, up to and including 10 bar1);
b) an operating temperature of 20 °C as reference temperature.
NOTE 2 For other operating temperatures, derating coefficients can be used; see EN 1555-5. For mechanical fittings conforming to ISO 10838-1 [6], ISO 10838-2 [7] or ISO 10838-3 [8], as applicable, guidance for assessment of conformity is not given in this part of EN 1555. When requested, a quality plan based on the tests mentioned in ISO 10838-1 [6], ISO 10838-2 [7] or ISO 10838-3 [8], as applicable, should be set up in agreement between user and manufacturer. EN 1555 covers a range of maximum operating pressures and gives requirements concerning colours and additives.
NOTE 3 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.

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  • Technical specification
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This Technical Specification gives guidance for the assessment of conformity of compounds, products, joints and assemblies in accordance with the applicable part(s) of EN 1555 intended to be included in the manufacturer’s quality plan as part of the quality management system and for the establishment of certification procedures.
It is recommended that the quality management system conforms to or is no less stringent than the relevant requirements to EN ISO 9001 [2].
NOTE 1   If certification is involved, the certification and inspection body is preferably compliant with EN 45011 [3], EN 45012 [4] or EN ISO/IEC 17020 [5], as applicable.
In conjunction with Parts 1 to 5 of EN 1555 (see Foreword), this Technical Specification is applicable to polyethylene (PE) plastics piping systems for the supply of gaseous fuels. It is applicable to PE pipes, fittings, and valves, their joints and to joints with components of other materials intended to be used under the following conditions:
a)   a maximum operating pressure, MOP, up to and including 10 bar );
b)   an operating temperature of 20 °C as reference temperature.
NOTE 2   For other operating temperatures, derating coefficients can be used; see EN 1555-5.
For mechanical fittings conforming to ISO 10838-1 [6], ISO 10838-2 [7] or ISO 10838-3 [8], as applicable, guidance for assessment of conformity is not given in this part of EN 1555. When requested, a quality plan based on the tests mentioned in ISO 10838-1 [6], ISO 10838-2 [7] or ISO 10838-3 [8], as applicable, should be set up in agreement between user and manufacturer.
EN 1555 covers a range of maximum operating pressures and gives requirements concerning colours and additives.
NOTE 3   It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.

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  • Technical specification
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This European Standard" specifies the characteristics of fusion fittings made from polyethylene (PE) as well as of mechanical fittings for piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in this standard. In conjunction with Parts 1, 2, 4 and 5 of EN 1555, it is applicable to PE fittings, their joints and to joints with components of PE and other materials intended to be used under the following conditions: a) a maximum operating pressure, MOP, up to and including 10 bar); b) an operating temperature of 20 °C as reference temperature. EN 1555 (all parts) covers a range of maximum operating pressures and gives requirements concerning colours and additives. This European Standard is applicable for fittings of the following types: c) electrofusion socket fittings; d) electrofusion saddle fittings; e) spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion); f) mechanical fittings. The fittings can e.g. be in the form of couplers, equal and reduced tees, reducers, bends or caps.

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This European Standard describes common principles for pressure testing, commissioning and decommissioning of gas infrastructures as covered by the functional European Standards of the Technical Committee CEN/TC 234, see Annex B. They have been extracted from the detailed codes of practice and operating manuals in the member countries. This European Standard does not cover installation pipework which is covered by EN 1775. The specified procedures are applicable to strength testing, tightness testing and combined testing. Test pressure levels, test periods and acceptance criteria are not covered by this European Standard. Additional measures or different methods of testing, commissioning or decommissioning can be required by legislation of the individual member countries or at the discretion of the pipeline operator. This European Standard specifies common basic principles for gas infrastructure. Users of this European Standard should be aware that more detailed national standards and/or code of practice may exist in the CEN member countries. This European Standard is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles. In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this European Standard, the national legislation/regulation should take precedence as illustrated in CEN/TR 13737 (all parts).

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  • Standard
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The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1555-1, Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 1: General EN 1555-2, Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 2: Pipes EN 1555-3, Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 3: Fittings EN 1555-4, Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves EN 1555-5, Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 5: Fitness for purpose of the system EN 12327, Gas infrastructure - Pressure testing, commissioning and decommissioning procedures - Functional requirements.

  • Standard
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This European Standard describes the specific functional requirements for polyethylene (PE) pipelines in addition to the general functional requirements of EN 12007-1 for: a) a maximum operating pressure (MOP) up to and including 10 bar; b) an operating temperature between -20 °C and +40 °C. This European Standard covers three types of pipe: PE pipes including any identification stripes; PE pipes with co-extruded layers on either or both the outside and/or inside of the pipe; PE pipes with a peelable, contiguous thermoplastics additional layer on the outside of the pipe. This European Standard specifies common basic principles for gas infrastructure. Users of this European Standard should be aware that more detailed national standards and/or code of practice may exist in the CEN member countries. This European Standard is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles. In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this European Standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737 (all parts). CEN/TR 13737 (all parts) give: clarification of all legislations/regulations applicable in a member state; if appropriate, more restrictive national requirements; a national contact point for the latest information.

  • Standard
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This European Standard describes the general functional requirements for pipelines up to the point of delivery, and also for buried sections of pipework after the point of delivery, for maximum operating pressures up to and including 16 bar for gaseous fuels in accordance with EN 437:1993+A1:2009, Table 1. It applies to their design, construction, commissioning, decommissioning, operation, maintenance, renovation, extension and other associated works. This European Standard does not apply to the materials, design, construction, testing and commissioning of gas infrastructures in use prior to the publication of this European Standard. However, this European Standard does apply to the operation, maintenance, renovation and extension of all gas infrastructures. Specific functional requirements for polyethylene pipelines are given in EN 12007-2, for steel pipelines in EN 12007-3 and for the renovation of pipelines in EN 12007-4. Functional recommendations for pipework for buildings are given in EN 1775. Functional requirements for service lines are given in prEN 12007-5. Functional requirements for pressure testing, commissioning and decommissioning are given in EN 12327. Functional requirements for measuring systems are given in EN 1776. Functional requirements for pressure regulating stations are given in EN 12186. Functional requirements for pressure regulating installations are given in EN 12279. Functional requirements for gas transmission are given in EN 1594. This European Standard specifies common basic principles for gas infrastructure. Users of this European Standard should be aware that more detailed national standards and/or code of practice may exist in the CEN member countries. This European Standard is intended to be applied in association with these national standards and/or codes of practice setting out the above-mentioned basic principles. In the event of conflicts in terms of more restrictive requirements in national legislation/regulation with the requirements of this European Standard, the national legislation/regulation takes precedence as illustrated in CEN/TR 13737 (all parts).

  • Standard
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This Technical Report gives explanation on the pressure definitions used by the gas network operators with regard to the standards of CEN/TC 234 "Gas Infrastructure". The European Standards of CEN/TC 234 comprise the functional requirements in the field of gas infrastructure from the input of gas into the on-shore transmission network up to the inlet connection of gas appliances, including transmission, distribution, storage, compression, pressure regulation and metering, installation, injection of non-conventional gases, gas quality issues and others.

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