1.1   Scope of EN 12309
Appliances covered by this European Standard include one or a combination of the following:
-   gas-fired sorption chiller;
-   gas-fired sorption chiller/heater;
-   gas-fired sorption heat pump.
This European Standard applies to appliances designed to be used for space heating or cooling or refrigeration with or without heat recovery.
This European Standard applies to appliances having flue gas systems of type B and C (according to CEN/TR 1749) and to appliances designed for outdoor installations. EN 12309 does not apply to air conditioners, it only applies to appliances having:
-   integral burners under the control of fully automatic burner control systems,
-   closed system refrigerant circuits in which the refrigerant does not come into direct contact with the water or air to be cooled or heated,
-   mechanical means to assist transportation of the combustion air and/or the flue gas.
The above appliances can have one or more primary or secondary functions (i.e. heat recovery - see definitions in prEN 12309 1:2012).
In the case of packaged units (consisting of several parts), this standard applies only to those designed and supplied as a complete package.
The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by EN 12309.
Installations used for heating and/or cooling of industrial processes are not within the scope of EN 12309.
All the symbols given in this text should be used regardless of the language used.
1.2   Scope of this Part 1 of EN 12309
This part of this European Standard specifies the terms and definitions for gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW.

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1.1   Scope of EN 12309
Appliances covered by this document include one or a combination of the following:
-   gas-fired sorption chiller;
-   gas-fired sorption chiller/heater;
-   gas-fired sorption heat pump;
-   hybrids based on gas sorption appliances.
This document applies to appliances designed to be used for space heating or cooling or refrigeration with or without heat recovery.
This document applies to appliances having flue gas systems of type B and C (according to EN 1749) and to appliances designed for outdoor installations. EN 12309 does not apply to air conditioners, it only applies to appliances having:
-   integral burners under the control of fully automatic burner control systems,
-   closed system refrigerant circuits in which the refrigerant does not come into direct contact with the water or air to be cooled or heated,
-   mechanical means to assist transportation of the combustion air and/or the flue gas.
The above appliances can have one or more primary or secondary functions (i.e. heat recovery).
In the case of packaged units (consisting of several parts), this standard applies only to those designed and supplied as a complete package.
The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by EN 12309.
Installations used for heating and/or cooling of industrial processes are not within the scope of EN 12309.
All the symbols given in this text are used regardless of the language used.
1.2   Scope of this Part 1 of EN 12309
This part of this document specifies the terms and definitions for gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW.

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This document defines terms relating to the valves, camshaft drives and actuating mechanisms of reciprocating internal combustion engines.

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This document defines basic terms relating to the work of ISO/TC 180. The committee covers standardization in the field of the measurement of solar radiation and solar energy utilization in space and water heating, cooling, industrial process heating and air conditioning. Consequently, the vocabulary within this document is focussed on definitions relating to those measurement and utilisation technologies.
Since the 1999 version of this document there has been considerable development in solar photovoltaic technologies and high temperature solar thermal technologies that use heat to produce electricity or to provide high temperatures for processes that require elevated temperatures. This standard has some definitions that are useful also for those technologies; however, there are other documents that cover vocabulary for these technologies in more detail.

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This document specifies the terms and definitions for the rating and performance of air conditioners, liquid chilling packages and heat pumps using either air, water or brine as heat transfer media, with electrically driven compressors when used for space heating and/or cooling.
It also specifies the terms and definitions for the rating and performance of process chillers.
This document does not apply to heat pumps for domestic hot water, although certain definitions can be applied to these.
This document applies to:
-   factory-made units that can be ducted,
-   factory-made liquid chilling packages with integral condensers or for use with remote condensers, and
-   air-to-air air conditioners which can also evaporate the condensate on the condenser side.
Packaged units, single split and multisplit systems are covered by this document. Single duct and double duct units are covered by this document, as well.
In the case of units consisting of several parts, this document applies only to those designed and supplied as a complete package, except for liquid chilling packages with remote condenser.
This document is primarily intended for water and brine chilling packages but can be used for other liquid subject to agreement.
The units having their condenser cooled by air and by the evaporation of external additional water will have their performance in the cooling mode determined in accordance to EN 15218. For those which can also operate in the heating mode, the EN 14511 series applies for the determination of their performance in the heating mode.
NOTE 1   Part load testing of units is dealt with in EN 14825.
NOTE 2   All the symbols given in this text are used regardless of the language.

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This document establishes a vocabulary for solid biofuels. This document only includes raw and processed material originating from
—    forestry and arboriculture,
—    agriculture and horticulture, and
—    aquaculture.
NOTE 1   Chemically treated material cannot include halogenated organic compounds or heavy metals at levels higher than those in typical virgin material values (see also ISO 17225-1:2021, Annex B) or higher than typical values of the country of origin.
NOTE 2   Raw and processed material includes woody, herbaceous, fruit and aquatic biomass and biodegradable waste originating from above sectors.
Materials originating from different recycling processes of end-of-life-products are outside the scope of this document but relevant terms are included for information. Liquid biofuels (ISO/TC 28/SC 7), natural gas (ISO/TC 193) and solid recovered fuels (ISO/TC 300) are outside the scope of this document.

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This document establishes a vocabulary for liquid fuel systems of reciprocating internal combustion engines. The terms and definitions are classified as follows: — fuel supply system (3.1); — carburettor (3.2); — fuel injection system (3.3). Note: ISO 2710-1 gives a classification of reciprocating internal combustion engines and denotes the basic terms and definitions of such engines and their characteristics.

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This document establishes a vocabulary for emission control systems of reciprocating internal combustion engines. In this document, the terms are classified as follows: a) exhaust emission matter; b) exhaust emission control systems and devices; c) parameters for exhaust emission control systems.

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This document defines basic terms relating to the work of ISO/TC 180. The committee covers
standardization in the field of the measurement of solar radiation and solar energy utilization in
space and water heating, cooling, industrial process heating and air conditioning. Consequently,
the vocabulary within this document is focussed on definitions relating to those measurement and
utilisation technologies.
Since the 1999 version of this document there has been considerable development in solar photovoltaic
technologies and high temperature solar thermal technologies that use heat to produce electricity or to
provide high temperatures for processes that require elevated temperatures. This standard has some
definitions that are useful also for those technologies; however, there are other documents that cover
vocabulary for these technologies in more detail.

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This document establishes a vocabulary for ignition systems of reciprocating internal combustion engines. In this document, the terms are classified as follows: a) types of ignition system; b) conventional ignition systems; c) electronic ignition systems; d) computer-controlled ignition systems; e) parameters for ignition systems. NOTE ISO 2710-1 gives a classification of reciprocating internal combustion engines and defines basic terms and definitions of such engines and their characteristics.

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This document defines terms relating to lubricating systems.

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This document defines basic terms relating to the work of ISO/TC 180. The committee covers standardization in the field of the measurement of solar radiation and solar energy utilization in space and water heating, cooling, industrial process heating and air conditioning. Consequently, the vocabulary within this document is focussed on definitions relating to those measurement and utilisation technologies. Since the 1999 version of this document there has been considerable development in solar photovoltaic technologies and high temperature solar thermal technologies that use heat to produce electricity or to provide high temperatures for processes that require elevated temperatures. This standard has some definitions that are useful also for those technologies; however, there are other documents that cover vocabulary for these technologies in more detail.

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IEC 60050-417:2022 gives the general terminology used in the domain of marine energy conversion systems for wave, tidal and other water current converters, as well as general terms pertaining to specific applications and associated technologies. It has the status of a horizontal publication in accordance with IEC Guide 108. This terminology is consistent with the terminology developed in the other specialized parts of the IEV.

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This European Standard specifies the requirements for the safety of persons and property, provides guidance for the protection of the environment and establishes procedures for the operation, maintenance and repair of refrigerating systems and the recovery of refrigerants.
The term “refrigerating system” used in this European Standard includes heat pumps.
This part of EN 378 specifies the classification and selection criteria applicable to refrigerating systems. These classification and selection criteria are used in parts 2, 3 and 4.
This standard applies:
a)   to refrigerating systems, stationary or mobile, of all sizes except to vehicle air conditioning systems covered by a specific product standard e.g. ISO 13043;
b)   to secondary cooling or heating systems;
c)   to the location of the refrigerating systems;
d)   to replaced parts and added components after adoption of this standard if they are not identical in function and in the capacity;
Systems using refrigerants other than those listed in Annex E of this European Standard are not covered by this standard.
Annex C specifies how to determine the amount of refrigerant permitted in a given space, which when exceeded, requires additional protective measures to reduce the risk.
Annex E specifies criteria for safety and environmental considerations of different refrigerants used in refrigeration and air conditioning.
This standard is not applicable to refrigerating systems and heat pumps which were manufactured before the date of its publication as a European Standard except for extensions and modifications to the system which were implemented after publication.
This standard is applicable to new refrigerating systems, extensions or modifications of already existing systems, and for existing stationary systems, being transferred to and operated on another site.
This standard also applies in the case of the conversion of a system to another refrigerant type, in which case conformity to the relevant clauses of parts 1 to 4 of the standard shall be assessed.
Product family standards dealing with the safety of refrigerating systems takes precedence over horizontal and generic standards covering the same subject.

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This document provides a vocabulary of terms used in the field of thermal insulation that covers materials, products, components and applications. Some of the terms can have a different meaning when used in other industries or applications.

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This European Standard specifies the requirements for the safety of persons and property, provides guidance for the protection of the environment and establishes procedures for the operation, maintenance and repair of refrigerating systems and the recovery of refrigerants.
The term “refrigerating system” used in this European Standard includes heat pumps.
This part of EN 378 specifies the classification and selection criteria applicable to refrigerating systems. These classification and selection criteria are used in parts 2, 3 and 4.
This standard applies:
a)   to refrigerating systems, stationary or mobile, of all sizes except to vehicle air conditioning systems covered by a specific product standard e.g. ISO 13043;
b)   to secondary cooling or heating systems;
c)   to the location of the refrigerating systems;
d)   to replaced parts and added components after adoption of this standard if they are not identical in function and in the capacity;
Systems using refrigerants other than those listed in Annex E of this European Standard are not covered by this standard.
Annex C specifies how to determine the amount of refrigerant permitted in a given space, which when exceeded, requires additional protective measures to reduce the risk.
Annex E specifies criteria for safety and environmental considerations of different refrigerants used in refrigeration and air conditioning.
This standard is not applicable to refrigerating systems and heat pumps which were manufactured before the date of its publication as a European Standard except for extensions and modifications to the system which were implemented after publication.
This standard is applicable to new refrigerating systems, extensions or modifications of already existing systems, and for existing stationary systems, being transferred to and operated on another site.
This standard also applies in the case of the conversion of a system to another refrigerant type, in which case conformity to the relevant clauses of parts 1 to 4 of the standard shall be assessed.
Product family standards dealing with the safety of refrigerating systems takes precedence over horizontal and generic standards covering the same subject.

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This document provides a vocabulary of terms used in the field of thermal insulation that covers
materials, products, components and applications. Some of the terms can have a different meaning
when used in other industries or applications.

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This document provides a vocabulary of terms used in the field of thermal insulation that covers materials, products, components and applications. Some of the terms can have a different meaning when used in other industries or applications.

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This European Standard defines the terminology to be used in the field of sustainability criteria for the production of biofuels and bioliquids for energy applications. This European Standard specifically considers some relevant terms and definitions used in the European Commission Directive 2009/28/EC [1], referred to as Renewable Energy Directive (RED), and in the European Commission Directive 2009/30/EC [2] referred to as Fuel Quality Directive (FQD), or in other European regulations.

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This document contains the terms, definitions, notes to entry and examples corresponding to the basic concepts of the nuclear energy, nuclear technologies, and radiological protection subject fields. It provides the minimum essential information for each cross-cutting concept represented by a single term. NOTE A full understanding of concepts goes with a background knowledge of nuclear energy, nuclear technologies, and radiological protection. It is intended to facilitate communication and promote common understanding.

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This European Standard defines the terminology to be used in the field of sustainability criteria for the production of biofuels and bioliquids for energy applications. This European Standard specifically considers some relevant terms and definitions used in the European Commission Directive 2009/28/EC [1], referred to as Renewable Energy Directive (RED), and in the European Commission Directive 2009/30/EC [2] referred to as Fuel Quality Directive (FQD), or in other European regulations.

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This document defines terms relating to the characteristics of engines and their components relevant to maintenance activities. This document gives a classification of terms according to reasons for their use and defines typical means, failures and procedures resulting in or from engine maintenance.

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This part of IEC 62933 defines terms applicable to electrical energy storage (EES) systems
including terms necessary for the definition of unit parameters, test methods, planning,
installation, safety and environmental issues.
This terminology document is applicable to grid-connected systems able to extract electrical
energy from an electric power system, store it internally, and inject electrical power to an
electric power system. The step for charging and discharging an EES system may comprise
an energy conversion.

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This amendment 1 is valid for the following parts of the IEC 60317: Part 2 (1990), Part 3 (1990), Part 4 (1990), Part 10 (1972), Part 12 (1990), Part 14 (1990), Part 15 (1990), Part 16 (1990), Part 17 (1990), Part 18 (1990), Part 19 (1990), Part 20 (1990), Part 21 (1990), Part 22 (1990), Part 23 (1990), Part 24 (1990), Part 26 (1990), Part 28 (1990), Part 29 (1990), Part 30 (1990), Part 35 (1992), Part 36 (1992), Part 37 (1992) and Part 38 (1992).

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ISO 2710-1:2017 defines the basic terms relating to the design and operation of reciprocating internal combustion (RIC) engines. Further terms relating to components and systems of RIC engines are defined in ISO 7967 (all parts), and performance is defined in ISO 15550, ISO 14396 and in ISO 3046 (all parts).

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1.1   Scope of FprEN 16905 series
This European Standard specifies the requirements, test methods and test conditions for the rating and performance calculation of air conditioners and heat pumps using either air, water or brine as heat transfer media, with gas-fired endothermic engine driven compressors when used for space heating, cooling and refrigeration, hereafter referred to as "GEHP appliance".
This European Standard only applies to appliances with a maximum heat input (based on net calorific value) not exceeding 70 kW at standard rating conditions.
This European Standard only applies to appliances under categories I2H, I2E, I2Er, I2R, I2E(S)B, I2L, I2LL, I2ELL, I2E(R)B, I2ESi, I2E(R), I3P, I3B, I3B/P, II2H3+, II2Er3+, II2H3B/P, II2L3B/P, II2E3B/P, II2ELL3B/P, II2L3P, II2H3P, II2E3P and II2Er3P according to EN 437.
This European Standard only applies to appliances having:
a)   gas fired endothermic engines under the control of fully automatic control systems;
b)   closed system refrigerant circuits in which the refrigerant does not come into direct contact with the fluid to be cooled or heated;
c)   where the temperature of the heat transfer fluid of the heating system (heating water circuit) does not exceed 105 °C during normal operation;
d)   where the maximum operating pressure in the:
1)   heating water circuit (if installed) does not exceed 6 bar
2)   domestic hot water circuit (if installed) does not exceed 10 bar.
This European Standard applies to appliances only when used for space heating or space cooling or for refrigeration, with or without heat recovery.
The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by this European Standard.
Packaged units, single split and multisplit systems are covered by this European Standard. Single duct and double duct units are covered by this European Standard.
The above appliances can have one or more primary or secondary functions.
This European Standard is applicable to appliances that are intended to be type tested. Requirements for appliances that are not type tested would need to be subject to further consideration.
In the case of packaged units (consisting of several parts), this European Standard applies only to those designed and supplied as a complete package.
NOTE   All the symbols given in this text are used regardless of the language used.
1.2   Scope of FprEN 16905-1
This part of FprEN 16905 series specifies the terms and definitions of gas-fired endothermic engine driven heat pumps for heating and/or cooling mode including the engine heat recovery.

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This part of ISO/IEC 13273 contains transverse concepts and their definitions in the subject field of
energy efficiency. This horizontal standard is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal
standards in the preparation of its publications. The contents of this horizontal standard will not apply
unless specifically referred to or included in the relevant publications.

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This part of ISO/IEC 13273 contains transversal concepts and their definitions in the subject field of
renewable energy sources. This horizontal standard is primarily intended for use by technical committees
in the preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal
standards in the preparation of its publications. The contents of this horizontal standard will not apply
unless specifically referred to or included in the relevant publications.

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ISO/IEC 13273-2:2015 contains transversal concepts and their definitions in the subject field of renewable energy sources. This horizontal standard is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 108.

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This part of ISO/IEC 13273 contains transverse concepts and their definitions in the subject field of
energy efficiency. This horizontal standard is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal
standards in the preparation of its publications. The contents of this horizontal standard will not apply
unless specifically referred to or included in the relevant publications.

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ISO 7967-2:2010 defines terms relating to the main running gear of reciprocating internal combustion engines. ISO 2710-1 gives a classification of reciprocating internal combustion engines and defines basic terms of such engines and their characteristics.

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SO 7967-5:2010 establishes a vocabulary for the cooling systems of reciprocating internal combustion engines.

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ISO 7967-5:2010 establishes a vocabulary for the control and monitoring systems of reciprocating internal combustion engines.

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IEC 60050-617:2009 has been published as a consequence of deregulation of the electricity market, it appeared necessary to establish a common glossary with those terms defining actors in the market, interface between actors and the technical or financial terms having a specific meaning in the context of electricity market. This horizontal standard IEC 60050-617:2009 is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 108. One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal standards in the preparation of its publications. The contents of this horizontal standard will not apply unless specifically referred to or included in the relevant publications. The content of 60050-617 will be freely available at www.electropedia.org. Electropedia (also known as the IEV Online) is the world's most comprehensive online electrical and electronic terminology database containing more than 20 000 terms and definitions.
It has the status of a horizontal standard in accordance with IEC Guide 108.

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To tehnično poročilo določa izraze in njihove definicije v standardih za fotonapetostne sisteme, da bi bila s tem zagotovljena uporaba enakih izrazov z enakim pomenom v različnih standardih in drugih tehničnih dokumentih s področja fotonapetostnih sistemov. Tehnično poročilo zajema izraze in simbole, ki se uporabljajo na področju fotonapetostnih sistemov in še niso zajeti v objavljenih slovenskih standardih tega področja.

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ISO 7967:2005 defines terms relating to pressure charging and air/exhaust gas ducting systems for reciprocating internal combustion engines.

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ISO 7967-8:2005 defines terms relating to starting systems for reciprocating internal combustion engines.

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ISO 7967-7:2005 defines terms relating to governing systems for Reciprocating Internal Combustion (RIC) engines. It mainly deals with speed governing systems for reciprocating internal combustion engines. For governing systems based on other parameters (e.g. torque, temperature and load), the definitions given may be considered as a basis.

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ISO 7967-1:2005 defines terms relating to engine structural components and external covers of reciprocating internal combustion engines.

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The scope of this European Standard is to establish heat exchanger terminology so that consistent terms are used. For the purposes of this European Standard a heat exchanger is a device, the main function of which is to transfer heat between two fluids, with physical separation by a wall. Heat exchange between a fluid and a solid material (in the case of ovens in particular) is therefore excluded.

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IEC TR 61364:1999 provides a basic nomenclature for hydraulic machinery used in hydroelectric power stations and defines their components. The contents of the corrigendum of August 2000 have been included in this copy.

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Defines terms used in the field of thermal insulation to describe heat transfer conditions, such as steady state, non-steady state, periodic state, transient state and heat transfer, and properties of materials.

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The scope of this European Standard is to establish heat exchanger terminology so that consistent terms are used. For the purposes of this European Standard a heat exchanger is a device, the main function of which is to transfer heat between two fluids, with physical separation by a wall. Heat exchange between a fluid and a solid material (in the case of ovens in particular) is therefore excluded.

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This European Standard specifies general terms and calculations used in deter- mining performance of heat exchangers including related theory and general test procedure. This European Standard applies to heat exchangers classified according to the general arrangement of heat transfer specified by heat transfersurface types of 4.1 and 4.2 of prEN 247:1996. This European standard applies when referenced by the various branch applicationstandards. The specific application European standards shall be the prime reference documents.

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This European Standard specifies general terms and calculations used in deter- mining performance of heat exchangers including related theory and general test procedure. This European Standard applies to heat exchangers classified according to the general arrangement of heat transfer specified by heat transfersurface types of 4.1 and 4.2 of prEN 247:1996. This European standard applies when referenced by the various branch applicationstandards. The specific application European standards shall be the prime reference documents.

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Gives terms and definitions used in the field of gas turbines. It applies to open-cycle gas turbines (using normal combustion systems), closed-cycle, semiclosed-cycle and combined-cycle gas turbines.

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Identifies the typical parameters and terms necessary for collecting and exchanging maintainability data. The definitions are valid for corrective maintenance. For preventive maintenance, a similar classification can be drawn up. The general guidelines on the exchange of reliability data for nuclear power plants are given in ISO 6527.

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Defines terms used in the field of thermal insulation to describe heat transfer conditions, such as steady state, non-steady state, periodic state, transient state and heat transfer, and properties of materials.

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