European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types)

Gives details of a general scheme for the classification of such appliances according to the method of evacuating the products of combustion. This form of appliance classification is widely used in the preparation of standards for gas appliances to identify the requirements and methods of test which are applicable to the various methods of evacuating the products of combustion. Appliances classified in this way are generally described as "Types" and this description has been retained for the purposes of this general scheme.

Europäischer Leitfaden für die Klassifizierung von Gasgeräten nach der Art der Abgasabführung (Arten)

Modèle européen pour la classification des appareils utilisant les combustibles gazeux selon le mode d'évacuation des produits de combustion (types)

Evropska shema za razvrščanje plinskih aparatov glede na način odvajanja produktov zgorevanja (tipi)

General Information

Status: Withdrawn
Publication Date: 13-Dec-2005
Withdrawal Date: 06-Oct-2009

ICS: 91.140.40 - Gas supply systems

Technical Committee: CEN/SS H99 - Products for household and leisure use - Undetermined
Drafting Committee: CEN/SS H99 - Products for household and leisure use - Undetermined

Current Stage: 9960 - Withdrawal effective - Withdrawal
Start Date: 07-Oct-2009
Completion Date: 07-Oct-2009

Ref Project: SIST-TP CEN/TR 1749:2006 - European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types)

Relations

Replaces: CR 1749:2001 - European scheme for the classification of gas appliances according to the method of evacuation of the products of combustion (Types)
Effective Date: 22-Dec-2008

Replaced By: CEN/TR 1749:2009 - European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types)
Effective Date: 10-Oct-2009

Technical report

TP CEN/TR 1749:2006

English language

31 pages

Preview

e-Library read for

AI-Chat

1 day

Create e-Library subscription and get permanent access to the document. Subscriptions are available for: 91 91.140 91.140.40

Get Certified

Connect with accredited certification bodies for this standard

ICC Evaluation Service

Nonprofit organization that performs technical evaluations of building products.

ANAB United States Verified

Visit Website

Aboma Certification B.V.

Specialized in construction, metal, and transport sectors.

RVA Netherlands Verified

Visit Website

BBA (British Board of Agrément)

UK construction product certification.

UKAS United Kingdom Verified

Visit Website

Frequently Asked Questions

What is CEN/TR 1749:2005?

CEN/TR 1749:2005 is a technical report published by the European Committee for Standardization (CEN). Its full title is "European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types)". This standard covers: Gives details of a general scheme for the classification of such appliances according to the method of evacuating the products of combustion. This form of appliance classification is widely used in the preparation of standards for gas appliances to identify the requirements and methods of test which are applicable to the various methods of evacuating the products of combustion. Appliances classified in this way are generally described as "Types" and this description has been retained for the purposes of this general scheme.

What is the scope of CEN/TR 1749:2005?

What ICS categories does CEN/TR 1749:2005 belong to?

CEN/TR 1749:2005 is classified under the following ICS (International Classification for Standards) categories: 91.140.40 - Gas supply systems. The ICS classification helps identify the subject area and facilitates finding related standards.

What standards are related to CEN/TR 1749:2005?

CEN/TR 1749:2005 has the following relationships with other standards: It is inter standard links to CR 1749:2001, CEN/TR 1749:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

How can I access CEN/TR 1749:2005?

CEN/TR 1749:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)

TP CEN/TR 1749:2006

SLOVENSKI STANDARD
01-februar-2006
1DGRPHãþD
SIST-TP CR 1749:2005
(YURSVNDVKHPD]DUD]YUãþDQMHSOLQVNLKDSDUDWRYJOHGHQDQDþLQRGYDMDQMD
SURGXNWRY]JRUHYDQMDWLSL
European scheme for the classification of gas appliances according to the method of
evacuation of the combustion products (types)
Europäischer Leitfaden für die Klassifizierung von Gasgeräten nach der Art der
Abgasabführung (Arten)
Modele européen po
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...

CEN

EN 12480:2025(Main)

Gas meters - Rotary displacement gas meters

SIST EN 12480:2026

This document 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 document 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 437:2021, 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 document 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) with condensing or with non-condensing humidity
or,
-   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 standard applies 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 document applies to meters with a maximum allowable pressure PS and the volume V of less than 6 000 bar · L or with a product of PS and DN of less than 3 000 bar.
This document is to 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.

Standard
73 pages
English language
e-Library read for
AI-Chat
1 day

CEN

EN 17526:2021+A1:2025(Main + Amendment)

Gas meter - Thermal-mass flow-meter based gas meter

SIST EN 17526:2022+A1:2025

This document specifies requirements and tests for the construction, performance, safety and production of battery powered class 1,5 Capillary Thermal-Mass Flow sensor gas meters (hereinafter referred to as meter(s)). This applies to meters having co-axial single pipe, or two pipe connections, which are used to measure volumes of fuel gases of the 2nd and/or 3rd family, as given in EN 437:2018.
In general, the term “thermal mass flow meters” applies to a flow-measuring device using heat transfer to measure and indicate gas flowrate, as defined in ISO 14511.
NOTE 1   Although the word “mass” is present in the definition of the measurement principle, gas meters covered by this document provide measurement of gas at base conditions of temperature and pressure.
These meters have a maximum working pressure not exceeding 0,5 bar and a maximum flowrate not exceeding 160 m3/h 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 °C.
This document applies to meters indicating volume at base conditions, which are installed in locations with vibration and shocks of low significance. It applies to meters in:
—   closed locations (indoor or outdoor with protection, as specified by the manufacturer) with condensing humidity or with non-condensing humidity;
or, if specified by the manufacturer:
—   open locations (outdoor without any covering) both with condensing humidity or with non-condensing humidity;
and in locations with electromagnetic disturbances likely to be found in residential, commercial and light industrial use.
For meters which indicate unconverted volume, reference can be made to Annex C.
Unless otherwise stated, all pressures given in this document are gauge pressures.
Requirements for electronic indexes, valves and additional requirements for batteries incorporated in the meter and any other additional functionalities are given in EN 16314:2013.
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 13 are for design and type testing only.

Standard
83 pages
English language
e-Library read for
AI-Chat
1 day

29-Apr-2025
91.140.40
CEN/TC 237

CEN

EN 12261:2024(Main)

Gas meters - Turbine gas meters

SIST EN 12261:2024

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, hereinafter 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 437:2021, 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.
Clauses 1 to 7 and Annex B are for design and type testing only, with the exception of 6.2.4.3, 6.2.5.3, 6.7.1.2.2 and 6.7.2.2.2. Annex C can be used to provide guidance on periodic tests during use. Clause 8 and Annexes D and E are for each meter prior to dispatch. Annex A is intended to be used for both type and individual testing. Annex F is intended to be used for individual testing. Annex G is intended to be used for design.

Standard
75 pages
English language
e-Library read for
AI-Chat
1 day

CEN

CEN/TR 16395:2023(Main)

Gas Infrastructure - CEN/TC 234 Pressure Definitions - Guideline Document

SIST-TP CEN/TR 16395:2024

This Technical Report gives explanation on the pressure definitions and pressure units used by the gas network operators with regard to the standards of CEN/TC 234 “Gas infrastructure” listed in Clause 2.
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 (renewable) gases such as biomethane, hydrogen, gas quality issues and others.

Technical report
16 pages
English language
e-Library read for
AI-Chat
1 day

14-Nov-2023
91.140.40
CEN/TC 234

CEN

EN 15001-1:2023(Main)

Gas Infrastructure - Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations - Part 1: Detailed functional requirements for design, materials, construction, inspection and testing

SIST EN 15001-1:2023

This European Standard specifies detailed functional requirements for the design, selection of materials, construction, inspection and testing of:
-   industrial gas installation pipework and assemblies with an operating pressure greater than 0,5 bar; and
-   non-industrial gas installation pipework (residential and commercial) with an operating pressure greater than 5 bar in buildings;
starting from the outlet of the network operator’s point of delivery up to the inlet connection to the gas appliance; normally the inlet isolation valve. This standard also covers the pipework to the inlet connection of a gas appliance that is not included within the scope of the appliance standard.
NOTE 1   The use of the term installation and pipework is interchangeable.
Apart from the exceptions stated below, this standard applies to gas installations operating at ambient temperatures between −20 °C and 40 °C and operating pressures up to and including 60 bar. For operating conditions outside these limitations, reference should additionally be made to EN 13480 (all parts) for metallic pipework.
For industrial gas installations up to and including 0,5 bar and for non-industrial (residential and commercial) gas installations up to and including 5 bar in buildings, EN 1775 applies.
For gas installations that do not fall within the scope of EN 1775 or other European Standards, this standard applies.
In this European Standard, the term “gas“ refers to combustible gases, which are gaseous at 15 °C and 1 013 mbar absolute atmospheric pressure (normal conditions). These gases are commonly referred to as manufactured gas, natural gas or Liquefied Petroleum Gas (LPG). They are also referred to as first, second or third family gases as classified in EN 437:2003+A1:2009, Table 1. The given values are considered as normal conditions for all volumes given in this standard.
This European Standard is applicable to installation pipework for the carriage of:
-   processed, non-toxic and non-corrosive natural gas according to EN 437:2003+A1:2009 and EN 16726 "Gas infrastructure - Quality of gas - Group H";
-   vaporized LPG;
-   biomethane, complying with EN 16723 1;
-   vaporized LNG.
NOTE 2   The specification of vaporized LNG is equal to that of natural gas as classified in EN 437:2003+A1:2009.
This European Standard does not cover pipework for hydrogen rich gases that fall outside the definitions within EN 437:2003+A1:2009.
LPG storage vessels (including all ancillaries fitted directly to storage vessels) are excluded. Also excluded are LPG installations and sections of LPG installations operating at vapour pressure in the liquid state (e.g. between the storage vessel and any pressure regulator).
In this standard, all pressures are gauge pressures unless otherwise stated.
This standard has been harmonized to address the essential safety requirements of the Pressure Equipment Directive (PED, 2014/68/EU [formerly 97/23/EC]) relevant for the joining of gas installation pipework (assemblies) falling within the scope of the PED. These are listed in Annex ZA. However, "this Directive does not cover the assembly of pressure equipment on the site and under the responsibility of the user, as in the case of industrial installations" (PED, Preamble, 7th recital, last paragraph).
Although in this respect, the standard takes into account the essential safety requirements of the PED, no inference can be drawn from this as to whether or not the installation or parts of the installation falls within the scope of the PED. Reference should therefore be made to the PED and relevant national legislation.
This European Standard specifies common basic principles for gas supply systems. Users of this European Standard should be aware (...)

Standard
131 pages
English language
e-Library read for
AI-Chat
1 day

CEN

EN 15001-2:2023(Main)

Gas supply systems - Gas installation pipework with an operating pressure greater than 0,5 bar for industrial installations and greater than 5 bar for industrial and non-industrial installations - Part 2: Detailed functional requirements for commissioning, operation and maintenance

SIST EN 15001-2:2023

This European Standard specifies detailed functional requirements for the commissioning, operation and maintenance of
-   industrial gas installations and assemblies with an operating pressure greater than 0,5 bar and of
-   non-industrial gas installations (residential and commercial) with an operating pressure greater than 5 bar,
starting from the outlet of the network operator’s point of delivery up to the inlet connection to the gas appliance; normally the inlet isolation valve. This European Standard also covers the pipework to the inlet connection of a gas appliance that is not included within the scope of the appliance standard.
NOTE   The use of the term installation and pipework is interchangeable.
Apart from the exceptions stated below, this standard applies to gas installations operating at ambient temperatures between -20 °C and 40 °C and operating pressures up to and including 60 bar. For operating conditions outside these limitations, reference should additionally be made to EN 13480 for metallic pipework.
For industrial gas installations up to and including 0,5 bar and for non-industrial (residential and commercial) gas installations up to and including 5 bar EN 1775 applies.
For gas installations that do not fall within the scope of EN 1775 or other European Standards, this European Standard applies.
In this European Standard, the term "gas" refers to combustible gases, which are gaseous at 15 °C and 1 013 mbar absolute atmospheric pressure. These gases are commonly referred to as manufactured gas, natural gas or Liquefied Petroleum Gas (LPG). They are also referred to as first, second or third family gases as classified in Table 1 of EN 437:2003+A1:2009. The given values are considered as normal conditions for all volumes given in this standard.
This European Standard is applicable to installation pipework for the carriage of:
-   processed, non-toxic and non-corrosive natural gas according to EN 437:2003+A1:2009 and EN 16726 -Gas infrastructure - Quality of gas - Group H”,
-   vaporized LNG,
-   biomethane, complying with EN 16723-1,
-   vaporized LNG.
NOTE   The specification of vaporized LNG is equal to that of natural gas as classified in EN 437:2003+A1:2009.
This European Standard does not cover pipework for hydrogen rich gases that fall outside the definitions within EN 437:2003+A1:2009. LPG storage vessels (including all ancillaries fitted directly to storage vessels) are excluded. Also excluded are LPG installations and sections of LPG installations operating at vapour pressure (e.g. between the storage vessel and its pressure regulator).
In this European Standard, all pressures are gauge pressures unless otherwise stated.
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 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.
For gas installations within the scope of this standard, national legislation and regulations have to be taken into account.
Functional requirements for design, selection of materials, construction, inspection and testing of industrial gas installations and assemblies with an operating pressure greater than 0,5 bar and of gas installations greater than 5 bar in buildings and areas intended for residential, commercial, public and mixed uses are described in EN 15001-1.
Generally, additional safety precautions may be necessary where non odorized gas is used. For non-industrial purposes, the gas should be odorized.

Standard
26 pages
English language
e-Library read for
AI-Chat
1 day

CEN

EN 16830:2022(Main)

Safety and control devices for burners and appliances burning gaseous or liquid fuels - Control functions in electronic systems - Temperature Control function

SIST EN 16830:2022

This document specifies the safety, design, construction, performance requirements and testing of Temperature Control Functions (TCF) and Combustion Product Discharge Safety Devices (TTB) for gas and liquid fuel burners and appliances burning one or more gaseous or liquid fuels, hereafter referred to as ‘TCF’ or ‘TTB’.
It also describes the test procedures for checking compliance with these requirements.
This document 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 document is applicable to electronically based TTB and TCF only.
For both TTB and TCF, the requirements in this document are applicable to the combination of sensing element and control.

Standard
32 pages
English language
e-Library read for
AI-Chat
1 day

08-Feb-2022
30-Aug-2022
91.140.40
97.100.20
CEN/TC 58

CEN

CEN/TS 1555-7:2021(Main)

Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 7: Guidance for the assessment of conformity

SIST-TS CEN/TS 1555-7:2022

This document 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.
This document gives recommendations that the quality management system conforms to or is no less stringent than the relevant requirements to EN ISO 9001.
NOTE 1 If certification is involved, the certification and inspection body is preferably compliant with EN ISO/IEC 17065, EN IS0/IEC 17021 or EN ISO/IEC 17020, as applicable.
In conjunction with Parts 1 to 5 of EN 1555 (see Foreword), this document 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.

Technical specification
43 pages
English language
e-Library read for
AI-Chat
1 day

CEN

EN 14459:2021(Main)

Safety and control devices for burners and appliances burning gaseous or liquid fuels - Control functions in electronic systems - Methods for classification and assessment

SIST EN 14459:2022

EN 13611:2019, Clause 1 is replaced by the following:
This document specifies methods for the classification and assessment of function blocks for burners and appliances burning one or more gaseous or liquid fuels with particular regards to their fault behaviour and preventative measures.
This document is applicable to new control function blocks, not covered by dedicated control standards.

Standard
41 pages
English language
e-Library read for
AI-Chat
1 day

CEN

EN 12405-1:2021(Main)

Gas meters - Conversion devices - Part 1: Volume conversion

SIST EN 12405-1:2022

This document specifies the requirements and tests for the construction, performance, safety and conformity of gas-volume electronic conversion devices associated to gas meters, used to measure volumes of fuel gases of the 1st and 2nd families according to EN 437.
This document is intended for type testing, the detailed relevant provisions of which are given in Annex A.
Only three kinds of conversion are treated in this document:
-   conversion as a function of temperature only (called T conversion);
-   conversion as a function of the pressure and of the temperature with constant compression factor (called PT conversion);
-   conversion as a function of the pressure, the temperature and taking into account the compression factor (called PTZ conversion).
This document is not relevant to temperature conversion integrated into gas meters which only indicate the converted volume.
Gas-volume conversion devices consist of a calculator and a temperature transducer or a calculator, a temperature transducer and a pressure transducer locally installed.
For application of this document, a conversion device may be, as a choice of the manufacturer, considered as a complete instrument (Type 1) or made of separate elements (Type 2), according to the definitions given in 3.1.20.1 and 3.1.20.2.
In this last case, the provisions concerning pressure transducers, temperature sensors and temperature transducers are given in Annexes B, C and D respectively.
Any conversion device can provide an error curve correction for a gas meter.
NOTE   When rendering an account to an end user the readings from the conversion device can be used in conjunction with the readings from a gas meter conforming to EN 1359, EN 12480, or EN 12261, as appropriate, or to any other appropriate and relevant international or national standard for gas meters, without prejudice of national regulations.

Standard
122 pages
English language
e-Library read for
AI-Chat
1 day

05-Oct-2021
29-Apr-2022
91.140.40
2014/32/EU
M/374
M/541
CEN/TC 237

European scheme for the classification of gas appliances according to the method of evacuation of the combustion products (types)

Europäischer Leitfaden für die Klassifizierung von Gasgeräten nach der Art der Abgasabführung (Arten)

Modèle européen pour la classification des appareils utilisant les combustibles gazeux selon le mode d'évacuation des produits de combustion (types)

Evropska shema za razvrščanje plinskih aparatov glede na način odvajanja produktov zgorevanja (tipi)

General Information

Relations

TP CEN/TR 1749:2006

Get Certified

ICC Evaluation Service

Aboma Certification B.V.

BBA (British Board of Agrément)

Frequently Asked Questions

Standards Content (Sample)

Questions, Comments and Discussion

This May Also Interest You