EN ISO 21911-1:2023

SLOVENSKI STANDARD
01-november-2023
Trdna alternativna goriva - Določanje samosegrevanja - 1. del: Izotermalna
kalorimetrija (ISO 21911-1:2022)
Solid recovered fuels - Determination of self-heating - Part 1: Isothermal calorimetry (ISO
21911-1:2022)
Feste Sekundärbrennstoffe - Bestimmung der Selbsterhitzung - Teil 1: Isotherme
Kalorimetrie (ISO 21911-1:2022)
Combustibles solides de récupération - Détermination de l'auto-échauffement - Partie 1:
Détermination calorimétrique isotherme (ISO 21911-1:2022)
Ta slovenski standard je istoveten z: EN ISO 21911-1:2023
ICS:
75.160.10 Trda goriva Solid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 21911-1
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2023
EUROPÄISCHE NORM
ICS 75.160.10
English Version
Solid recovered fuels - Determination of self-heating - Part
1: Isothermal calorimetry (ISO 21911-1:2022)
Combustibles solides de récupération - Détermination Feste Sekundärbrennstoffe - Bestimmung der
de l'auto-échauffement - Partie 1: Détermination Selbsterhitzung - Teil 1: Isotherme Kalorimetrie (ISO
calorimétrique isotherme (ISO 21911-1:2022) 21911-1:2022)
This European Standard was approved by CEN on 24 August 2023.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21911-1:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 21911-1:2022 has been prepared by Technical Committee ISO/TC 300 "Solid recovered
materials, including solid recovered fuels” of the International Organization for Standardization (ISO)
and has been taken over as EN ISO 21911-1:2023 by Technical Committee CEN/TC 343 “Solid
recovered materials, including solid recovered fuels” the secretariat of which is held by SFS.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2024, and conflicting national standards
shall be withdrawn at the latest by February 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 21911-1:2022 has been approved by CEN as EN ISO 21911-1:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 21911-1
First edition
2022-11
Solid recovered fuels — Determination
of self-heating —
Part 1:
Isothermal calorimetry
Combustibles solides de récupération — Détermination de l'auto-
échauffement —
Partie 1: Détermination calorimétrique isotherme
Reference number
ISO 21911-1:2022(E)
ISO 21911-1:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
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CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 21911-1:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 S c op e . 1
2 Nor m at i ve r ef er enc e s . 1
3 Terms and definitions . 1
4 P r i nc iple . 2
5 A pp a r at u s . 2
6 S a mple ha nd l i n g .3
6.1 General . 3
6 . 2 S a mpl in g . 4
6.3 S ample transport and storage . 4
6 .4 S a mple pr ep a r at ion . 4
7 Te s t pr o c e du r e .4
7.1 Temp er at u r e s t abi l i z at ion . . 4
7.2 S ample vial preparation . 4
7. 2 .1 P r ep a r at ion pr o c e du r e . 4
7.2.2 Procedure to find proper test portion in case of influence from oxygen
deficiency . 5
7.3 R eference vial preparation . 5
7.4 Me a s u r ement . 6
7.4.1 F irst baseline measurement . 6
7.4 . 2 S a mple me a s u r ement . 6
7.4.3 Second baseline measurement . 6
7.4.4 M easurement data file . 6
8 R e s u lt s . . 6
8 .1 Te s t d at a . 6
8 . 2 R ep or t e d d at a . 7
9 Te s t r ep or t . 7
Annex A (normative) Calibration of the calorimeter . 8
Annex B (informative) Example of isothermal calorimetric measurements of solid
recovered fuel .10
Bibliography .12
iii
ISO 21911-1:2022(E)
Foreword
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Attention is drawn to the possibility that some of the elements of this document may be the subject of
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This document was prepared by Technical Committee ISO/TC 300, Solid recovered materials, inc
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