Gas-fired domestic appliances producing hot water - Part 4: Assessment of energy consumption of gas combined heat and power appliances (mCHP) producing hot water and electricity

This document is applicable to gas-fired mCHP appliances producing domestic hot water and electricity. The electricity is generated in a process linked to the production of useful heat.
It applies to a mCHP appliances marketed as single unit or as a package fully specified by a manufacturer that have:
-   a gas heat input not exceeding 400 kW,
-   an electrical output not exceeding 50 kW, and
-   a hot water storage capacity (if any) not exceeding 2 000 l.
EN 13203 1:2015 sets out in qualitative and quantitative terms the performance in delivery of domestic hot water for a variety of uses. It also gives a system for presenting the information to the user.
The present document sets out a method for assessing the energy performance of gas fired mCHP appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower, bath and a combination of these, together with corresponding test procedures, enabling the energy performances of different gas-fired appliances to be compared and matched to the needs of the user.
When the mCHP generator does not supply domestic hot water in the summer period, the present standard is not applicable. FprEN 13203 2:2018 is used for performance assessment of these generators.

Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Teil 4: Bewertung des Energieverbrauchs von Gasgeräten mit Kraft-Wärme-Kopplung (Mikro-KWK) zur Warmwasserbereitung und Stromerzeugung

Dieses Dokument ist anwendbar auf gasbefeuerte Geräte mit Mikro-Kraft-Wärme-Kopplung (µKWK-Geräte), die häusliches sanitäres Warmwasser und elektrische Energie bereitstellen. Die elektrische Energie wird in einem Prozess erzeugt, der mit der Bereitstellung von Nutzwärme verbunden ist.
Sie ist anzuwenden auf µKWK-Geräte, die als Einheit vermarktet werden oder für Systeme, die von einem Hersteller umfassend beschrieben sind und:
-   eine Gaswärmebelastung von 400 kW nicht überschreiten;
-   eine elektrische Leistung von 50 kW nicht überschreiten; und
-   ein Warmwasser-Speichervolumen (sofern vorhanden) von 2 000 l nicht überschreiten.
EN 13203-1:2015 legt mehrere qualitative und quantitative Leistungsstufen für die sanitäre Warmwasserbereitung für eine Auswahl von Benutzungsarten fest. Sie enthält ebenfalls ein System zur Bereitstellung von Angaben für den Anwender.
Das vorliegende Dokument legt ein Verfahren zur Bewertung des Energieverhaltens der gasbefeuerten µKWK Geräte fest. Es definiert eine Anzahl täglicher Zapfprogramme für jede häusliche Warmwasserverwendung in der Küche, zum Duschen und Baden und für Kombinationen dieser Verwendungsarten und legt die entsprechenden Prüfverfahren fest, die den Vergleich des Energieverhaltens unterschiedlicher gasbefeuerter Geräte ermöglichen und auf die Bedürfnisse des Benutzers ausgerichtet sind.
Wenn der µKWK-Generator im Sommer kein sanitäres Warmwasser liefert, ist die vorliegende Norm nicht anwendbar. Zur Bewertung der Leistung solcher Generatoren wird FprEN 13203-2:2018 angewendet.

Appareils domestiques produisant de l’eau chaude sanitaire utilisant les combustibles gazeux - Partie 4 : Évaluation de la consommation énergétique des appareils à gaz de production combinée de chaleur et d’électricité (mCHP) produisant de l’eau chaude et de l’électricité

Le présent document s’applique aux appareils de micro-cogénération utilisant des combustibles gazeux pour produire de l’eau chaude sanitaire et de l’électricité. L’électricité est produite par un procédé permettant la valorisation d’une énergie thermique.
Il s’applique aux appareils de micro-cogénération commercialisés comme une seule unité ou comme un produit combiné entièrement spécifié par le fabricant, qui ont :
-   un débit calorifique de gaz inférieur ou égal à 400 kW ;
-   une puissance électrique inférieure ou égale à 50 kW ; et
-   une capacité de stockage en eau chaude (le cas échéant) inférieure ou égale à 2 000 l.
L’EN 13203-1:2015 définit en termes qualitatifs et quantitatifs la performance en puisage d’eau chaude sanitaire pour une variété d’usages. Elle fournit également un système pour présenter les informations à l’utilisateur.
Le présent document définit une méthode pour déterminer les performances énergétiques des appareils de micro-cogénération utilisant des combustibles gazeux. Il définit plusieurs cycles de puisage journaliers pour l’usage d’eau chaude sanitaire, cuisine, douche, bain et une combinaison de ces derniers, ainsi que les modes opératoires d’essai correspondants, afin de pouvoir comparer les performances énergétiques des différents appareils utilisant les combustibles gazeux et de les adapter aux besoins de l’utilisateur.
La présente norme n’est pas applicable lorsque le micro-cogénérateur (mCHP) ne fournit pas d’eau chaude sanitaire en période estivale. Le FprEN 13203-2:2018 est utilisé pour déterminer les performances de ces générateurs.

Plinske gospodinjske naprave za pripravo tople sanitarne vode - 4. del: Ocenjevanje rabe energije plinskih naprav (mCHP) za soproizvodnjo tople vode in elektrike

General Information

Status

Not Published

ICS

91.140.65 - Water heating equipment

Technical Committee

CEN/TC 109 - Central heating boilers using gaseous fuels

Drafting Committee

CEN/TC 109/WG 4 - Hot water production of central heating boilers for domestic use

Current Stage

4599 - Dispatch of FV draft to CMC - Finalization for Vote

Due Date

07-Dec-2021

Completion Date

07-Dec-2021

Directive

2009/125/EC - Directive 2005/32/EC of the European Parliament and of the Council of 6 July 2005 establishing a framework for the setting of ecodesign requirements for energy-using products and amending Council Directive 92/42/EEC and Directives 96/57/EC and 2000/55/EC of the European Parliament and of the Council

2010/30/EU - DIRECTIVE 2010/30/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 19 May 2010 on the indication by labelling and standard product information of the consumption of energy and other resources by energy-related products (recast)

811/2013 - Commission Delegated Regulation (EU) No 811/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of space heaters, combination heaters, packages of space heater, temperature control and solar device and packages of combination heater, temperature control and solar device

812/2013 - Commission Delegated Regulation (EU) No 812/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of water heaters, hot water storage tanks and packages of water heater and solar device

813/2013 - Commission Regulation (EU) No 813/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for space heaters and combination heaters

814/2013 - Commission Regulation (EU) No 814/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for water heaters and hot water storage tanks

Mandate

M/534 - [C(2015)2625] Standardisation request to the European standardisation organisations pursuant to Article 10(1) of Regulation (EU) No 1025/2012 of the European Parliament and of the Council in support of implementation of Commission Regulation (EU) No 814/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for water heaters and hot water storage tanks and Commission Delegated Regulation (EU) No 812/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of water heaters, hot water storage tanks and packages of water heater and solar device

M/535 - [C(2016)2626) Standardisation request to the European standardisation organisations to draft harmonised European standards pursuant to Article 10(1) of Regulation (EU) No 1025/2012 of the European Parliament and of the Council in support of implementation of Commission Regulation (EU) No 813/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to eco-design requirements for space heaters and combination heaters and Commission Delegated Regulation (EU) No 811/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of space heaters, combination heaters, packages of space heaters, temperature control and solar device and packages of combination heater, temperature control and solar device

Ref Project

oSIST prEN 13203-4:2021 - Gas-fired domestic appliances producing hot water - Part 4: Assessment of energy consumption of gas combined heat and power appliances (mCHP) producing hot water and electricity

RELATIONS

Revised

EN 13203-4:2016 - Gas-fired domestic appliances producing hot water - Part 4: Assessment of energy consumption of gas combined heat and power appliances (mCHP) producing hot water and electricity

Effective Date

19-Apr-2017

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Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 13203-4:2018
01-december-2018
3OLQVNHJRVSRGLQMVNHQDSUDYH]DSULSUDYRWRSOHVDQLWDUQHYRGHGHO
2FHQMHYDQMHNROLþLQHHQHUJLMH]DVRSURL]YRGQMRWRSOHYRGHLQHOHNWULNHP&+3
Gas-fired domestic appliances producing hot water - Part 4: Assessment of energy
consumption of gas combined heat and power appliances (mCHP) producing hot water
and electricity

Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Teil

4: Bewertung des Energieverbrauchs von Gasgeräten mit Kraft-Wärme-Kopplung (Mikro-

KWK) zur Warmwasserbereitung und Stromerzeugung

Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles

gazeux - Partie 4 : Evaluation de la consommation énergétique des appareils à gaz de

production combinée de chaleur et d'électricité (mCHP) produisant de l'eau chaude et de

l'électricité
Ta slovenski standard je istoveten z: prEN 13203-4
ICS:
91.140.65 Oprema za ogrevanje vode Water heating equipment
oSIST prEN 13203-4:2018 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 13203-4:2018
---------------------- Page: 2 ----------------------
oSIST prEN 13203-4:2018
DRAFT
EUROPEAN STANDARD
prEN 13203-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2018
ICS 91.140.65 Will supersede EN 13203-4:2016
English Version
Gas-fired domestic appliances producing hot water - Part
4: Assessment of energy consumption of gas combined
heat and power appliances (mCHP) producing hot water
and electricity

Appareils domestiques produisant de l'eau chaude Gasbeheizte Geräte für die sanitäre

sanitaire utilisant les combustibles gazeux - Partie 4 : Warmwasserbereitung für den Hausgebrauch - Teil 4:

Evaluation de la consommation énergétique des Bewertung des Energieverbrauchs von Gasgeräten mit

appareils à gaz de production combinée de chaleur et Kraft-Wärme-Kopplung (Mikro-KWK) zur

d'électricité (mCHP) produisant de l'eau chaude et de Warmwasserbereitung und Stromerzeugung

l'électricité

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 109.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 13203-4:2018
prEN 13203-4:2018 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 6

4 General test conditions ................................................................................................................................. 7

4.1 Reference conditions ..................................................................................................................................... 7

4.2 Measurement uncertainties ........................................................................................................................ 7

4.2.1 General ................................................................................................................................................................ 7

4.2.2 Steady state conditions ................................................................................................................................. 7

4.3 Test conditions ................................................................................................................................................. 7

4.3.1 General ................................................................................................................................................................ 7

4.3.2 Test room ........................................................................................................................................................... 8

4.3.3 Water supply ..................................................................................................................................................... 8

4.3.4 Initial adjustment of the appliance ........................................................................................................... 8

4.3.5 Conditions for the determination of the maximum load profile .................................................... 8

4.3.6 Electrical supply .............................................................................................................................................. 8

4.3.7 Delivered electrical energy ......................................................................................................................... 8

5 Determination of the energy consumption and electrical energy generation of the

appliance ............................................................................................................................................................ 8

5.1 General ................................................................................................................................................................ 8

5.2 Load profiles ..................................................................................................................................................... 8

5.3 Determination of the energy recovered by the useful water .......................................................... 8

5.4 Calculation of gas energy .............................................................................................................................. 8

5.4.1 Calculation of the daily gas energy consumption in summer mode ............................................. 8

5.4.2 Calculation of daily gas energy consumption in winter mode ........................................................ 8

5.4.3 Daily gas energy consumption seasonally weighted .......................................................................... 9

5.5 Calculation of the daily electrical energy ............................................................................................... 9

5.5.1 Calculation of the delivered electrical energy ...................................................................................... 9

Figure 1 — Electrical measurements — Test points ...................................................................................... 10

5.5.2 Calculation of the produced electrical energy ................................................................................... 11

5.5.3 Calculation of electrical auxiliary energy ............................................................................................ 13

5.6 Measurement of energy consumption and production in standby mode". ............................. 13

5.6.1 General ............................................................................................................................................................. 13

5.6.2 Calculation of daily gas energy consumption in standby mode .................................................. 13

5.6.3 Calculation of daily auxiliary energy in standby mode .................................................................. 13

5.7 Measurement of the daily auxiliary electrical energy consumption in off mode ................. 14

6 Determination of the wasted water to total water ........................................................................... 15

7 Eco design Related Product Data ............................................................................................................ 15

---------------------- Page: 4 ----------------------
oSIST prEN 13203-4:2018
prEN 13203-4:2018 (E)

7.1 Water heating energy efficiency.............................................................................................................. 15

7.2 Annual fuel consumption (AFC) .............................................................................................................. 15

7.3 Annual electricity consumption (AEC) .................................................................................................. 15

7.4 Mixed water at 40 °C (V40) for storage water heaters .................................................................... 15

Annex A (informative) Test conditions ................................................................................................................ 16

Annex B (informative) Test rig and measurement devices .......................................................................... 17

Annex C (informative) Declaration of the Maximum Load Profile ............................................................. 18

Annex D (normative) Test points ........................................................................................................................... 19

Figure D.1 — Thermal performances for mCHP systems with combined storage tank for

central heating and domestic hot water — Test points .................................................................. 19

Figure D.2 — Thermal performances for mCHP systems with storage tank for domestic hot

water only — Test points". ........................................................................................................................ 20

Annex ZA (informative) Relationship between this European Standard and the eco-design

requirements of Commission Regulation (EU) n° 814/2013 [OJEU L239 of 6

September 2013] aimed to be covered ................................................................................................. 21

Annex ZB (informative) Relationship between this European Standard and the energy

labelling requirements of Commission Delegated Regulation (EU) No 812/2013

[OJEU L239 of 6 September 2013] aimed to be covered ................................................................. 22

Annex ZC (informative) Relationship between this European Standard and the ecodesign

requirements of Commission Regulation (EU) No 813/2013 [OJEU L239 of 6

September 2013] aimed to be covered ................................................................................................. 23

Annex ZD (informative) Relationship between this European Standard and the energy

labelling requirements of Commission Delegated Regulation (EU) No 811/2013

[OJEU L239 of 6 September 2013] aimed to be covered ................................................................. 24

Bibliography ................................................................................................................................................................. 25

---------------------- Page: 5 ----------------------
oSIST prEN 13203-4:2018
prEN 13203-4:2018 (E)
European foreword

This document (prEN 13203-4:2018) has been prepared by Technical Committee CEN/TC 109 “Central

heating boilers using gaseous fuels”, the secretariat of which is held by NEN.
This document is currently submitted to the CEN Enquiry.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive(s).

For relationship with EU Directive(s), see informative Annex ZA, ZB, ZC or ZD, which are an integral part

of this document.

The safety operation of the boiler is not covered by this standard. Safety is proved by means of the

essential safety requirements of the Gas Appliances Directive 2009/142/EC or GAR n°426/2016. This

way be achieved by compliance with the appropriate existing harmonized standards.

NOTE Useful standards are EN 26, EN 89, EN 15502–1, EN 15502–2–1, EN 15502–2–2 and EN 50465:2015.

---------------------- Page: 6 ----------------------
oSIST prEN 13203-4:2018
prEN 13203-4:2018 (E)
Introduction

This European Standard refers to clauses of FprEN 13203-2:2018 or adapts clauses by stating in the

corresponding clause, on the principle:

— shall be according to FprEN 13203-2:2018, (clause number) with the following modification;

— shall be according to FprEN 13203-2:2018, (clause number) with the following addition;

— FprEN 13203-2:2018, (clause number) shall be replaced with the following;
— FprEN 13203-2:2018, (clause number) is not applicable.
---------------------- Page: 7 ----------------------
oSIST prEN 13203-4:2018
prEN 13203-4:2018 (E)
1 Scope

This document is applicable to gas-fired mCHP appliances producing domestic hot water and electricity.

The electricity is generated in a process linked to the production of useful heat.

It applies to a mCHP appliances marketed as single unit or as a package fully specified by a

manufacturer that have:
— a gas heat input not exceeding 400 kW,
— an electrical output not exceeding 50 kW, and
— a hot water storage capacity (if any) not exceeding 2 000 l.

EN 13203-1:2015 sets out in qualitative and quantitative terms the performance in delivery of domestic

hot water for a variety of uses. It also gives a system for presenting the information to the user.

The present document sets out a method for assessing the energy performance of gas fired mCHP

appliances. It defines a number of daily tapping cycles for each domestic hot water use, kitchen, shower,

bath and a combination of these, together with corresponding test procedures, enabling the energy

performances of different gas-fired appliances to be compared and matched to the needs of the user.

When the mCHP generator does not supply domestic hot water in the summer period, the present

standard is not applicable. FprEN 13203-2:2018 is used for performance assessment of these

generators.
2 Normative references
FprEN 13203-2:2018, Clause 2 shall be replaced with the following:

"The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

FprEN 13203-2:2018, Gas-fired domestic appliances producing hot water – Part 2: Assessment of energy

consumption".
3 Terms and definitions

Shall be according to FprEN 13203-2:2018, Clause 3, with the following additions:

3.18
mCHP appliance

appliance which is placed on the market either as a complete package or specified as a complete

package to deliver safely and effectively the heating, electrical power and the domestic hot water

service claimed, comprising as relevant:
— primary heat and power generator;
— supplementary heat generator;
— flue ducts;
— thermal store
---------------------- Page: 8 ----------------------
oSIST prEN 13203-4:2018
prEN 13203-4:2018 (E)
3.19
mCHP generator
preferential heat and power generator
3.20
supplementary heat generator
non-preferential heat source providing peak load
3.21
power conditioning and control system

equipment used to change electrical voltage level and waveform, or otherwise alter or regulate the

electrical output of the primary heat and power generator to make it suitable and safe for export to

other components within or outside the appliance including controls used to operate the primary heat

and power generator such a gas valve, safety controls and internal cooling pumps
3.22
electric auxiliary energy (E )
Auxiliary

electric energy consumed by the mCHP appliance components associated with the supplementary heat

generator, thermal management and controls (e.g. pump, fan, valves, control unit)

Note 1 to entry: EAuxiliary is expressed in kWh.
3.23
produced electrical energy (E )
CHP
electrical energy produced by the mCHP generator
Note 1 to entry: E is expressed in kWh.
CHP
3.24
delivered electrical energy (E )
delivered
electrical energy delivered by the mCHP appliance to the grid
Note 1 to entry: E is expressed in kWh.
delivered
4 General test conditions
4.1 Reference conditions
Shall be according to FprEN 13203-2:2018, 4.1 with the following addition:

After the last indent "— electrical supply voltage:" add "— (410 ± 4) V three phase.".

4.2 Measurement uncertainties
4.2.1 General
Shall be according to FprEN 13203-2:2018, 4.2.1.
4.2.2 Steady state conditions
Shall be according to FprEN 13203-2:2018, 4.2.2.
4.3 Test conditions
4.3.1 General
Shall be according to FprE
...

SLOVENSKI STANDARD
oSIST prEN 13203-4:2021
01-februar-2021
Plinske gospodinjske naprave za pripravo tople sanitarne vode - 4. del:
Ocenjevanje rabe energije plinskih naprav (mCHP) za soproizvodnjo tople vode in
elektrike
Gas-fired domestic appliances producing hot water - Part 4: Assessment of energy
consumption of gas combined heat and power appliances (mCHP) producing hot water
and electricity

Gasbeheizte Geräte für die sanitäre Warmwasserbereitung für den Hausgebrauch - Teil

4: Bewertung des Energieverbrauchs von Gasgeräten mit Kraft-Wärme-Kopplung (Mikro-

KWK) zur Warmwasserbereitung und Stromerzeugung

Appareils domestiques produisant de l'eau chaude sanitaire utilisant les combustibles

gazeux - Partie 4 : Evaluation de la consommation énergétique des appareils à gaz de

production combinée de chaleur et d'électricité (mCHP) produisant de l'eau chaude et de

l'électricité
Ta slovenski standard je istoveten z: prEN 13203-4
ICS:
91.140.65 Oprema za ogrevanje vode Water heating equipment
oSIST prEN 13203-4:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 13203-4:2021
---------------------- Page: 2 ----------------------
oSIST prEN 13203-4:2021
DRAFT
EUROPEAN STANDARD
prEN 13203-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2021
ICS 91.140.65 Will supersede EN 13203-4:2016
English Version
Gas-fired domestic appliances producing hot water - Part
4: Assessment of energy consumption of gas combined
heat and power appliances (mCHP) producing hot water
and electricity

Appareils domestiques produisant de l'eau chaude Gasbeheizte Geräte für die sanitäre

sanitaire utilisant les combustibles gazeux - Partie 4 : Warmwasserbereitung für den Hausgebrauch - Teil 4:

Évaluation de la consommation énergétique des Bewertung des Energieverbrauchs von Gasgeräten mit

appareils à gaz de production combinée de chaleur et Kraft-Wärme-Kopplung (Mikro-KWK) zur

d'électricité (mCHP) produisant de l'eau chaude et de Warmwasserbereitung und Stromerzeugung

l'électricité

This draft European Standard is submitted to CEN members for second enquiry. It has been drawn up by the Technical

Committee CEN/TC 109.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 13203-4:2021
prEN 13203-4:2021 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 6

4 General test conditions ................................................................................................................................. 8

4.1 Reference conditions ..................................................................................................................................... 8

4.2 Measurement uncertainties ........................................................................................................................ 8

4.2.1 General ................................................................................................................................................................ 8

4.2.2 Steady-state conditions ................................................................................................................................. 8

4.3 Test conditions ................................................................................................................................................. 8

4.3.1 General ................................................................................................................................................................ 8