ISO 18134-3:2023

Solid biofuels — Determination of moisture content — Part 3: Moisture in general analysis sample

This document describes the method of determining the moisture content in the general analysis sample by drying in an oven. The method described in this document is applicable to all solid biofuels. The moisture content of solid biofuels (as received) is always reported based on the total mass of the test sample (wet basis). Since biofuels in small particle size are very hygroscopic, their moisture content will change with humidity in the atmosphere and, therefore, the moisture of the general analysis sample is determined simultaneously with the determination of other properties being measured (e.g. calorific value, volatile matter, metals, etc.). NOTE Biomass materials can contain small amounts of volatile organic compounds (VOC) which can evaporate when determining moisture content by oven drying (see References [1] and [2]). The release of such compounds is quite small relative to the overall moisture content as determined by this method and is disregarded in this document.

Biocombustibles solides — Dosage de la teneur en humidité — Partie 3: Humidité de l'échantillon pour analyse générale

Le présent document décrit la méthode de dosage de la teneur en humidité de l'échantillon pour analyse par séchage à l'étuve. La méthode décrite dans le présent document est applicable à l’ensemble des biocombustibles solides. La teneur en humidité des biocombustibles solides (à réception) est toujours rapportée à la masse totale de l'échantillon pour essai (base humide). Les biocombustibles constitués de particules de petite taille étant très hygroscopiques, leur teneur en humidité varie en fonction de l'humidité de l'atmosphère et, par conséquent, l'humidité de l’échantillon pour analyse générale est établie simultanément avec la détermination d’autres propriétés mesurées (par exemple, le pouvoir calorifique, la matière volatile, les métaux, etc.). NOTE Les matériaux de la biomasse peuvent contenir de petites quantités de composés organiques volatils (COV) qui peuvent s'évaporer lors du dosage de la teneur en humidité par séchage à l’étuve (voir Références[1] et[2]). La libération de ces composés est très faible par rapport à la teneur en humidité globale telle que déterminée par cette méthode et n'est pas prise en compte dans le présent document.

General Information

• Status: Published
• Publication Date: 11-Jun-2023
• ICS: 27.190 - Biological sources and alternative sources of energy
• ICS: 75.160.40 - Biofuels
• Technical Committee: ISO/TC 238 - Solid biofuels
• Drafting Committee: ISO/TC 238 - Solid biofuels
• Current Stage: 6060 - International Standard published
• Start Date: 12-Jun-2023
• Due Date: 15-Jun-2024
• Completion Date: 12-Jun-2023

Relations

• Consolidates: ISO 24638:2021 - Space systems — Pressure components and pressure system integration
• Effective Date: 06-Jun-2022
• Revises: ISO 18134-3:2015 - Solid biofuels — Determination of moisture content — Oven dry method — Part 3: Moisture in general analysis sample
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 18134-3
Second edition
2023-06
Solid biofuels — Determination of
moisture content —
Part 3:
Moisture in general analysis sample
Biocombustibles solides — Dosage de la teneur en humidité —
Partie 3: Humidité de l'échantillon pour analyse générale
Reference number
ISO 18134-3:2023(E)
© ISO 2023

---------------------- Page: 1 ----------------------
ISO 18134-3:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

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ISO 18134-3:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Sample preparation .2
6.1 General . 2
6.2 Size of test portion . 2
7 Procedure .3
8 Calculation . 3
9 Performance characteristics . 3
9.1 Repeatability . 3
9.2 Reproducibility . 3
10 Test report . 4
Bibliography . 5
iii
© ISO 2023 – All rights reserved

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ISO 18134-3:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 238, Solid biofuels, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 335, Solid biofuels, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 18134-3:2015), which has been
technically revised.
The main changes are as follows:
— Clause 6: statement added warning against loss or gain of moisture during sample preparation;
— references updated;
— minor editorial corrections.
A list of all parts in the ISO 18134 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
  © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 18134-3:2023(E)
Solid biofuels — Determination of moisture content —
Part 3:
Moisture in general analysis sample
1 Scope
This document describes the method of determining the moisture content in the general analysis
sample by drying in an oven. The method described in this document is applicable to all solid biofuels.
The moisture content of solid biofuels (as received) is always reported based on the total mass of the
test sample (wet basis).
Since biofuels in small particle size are very hygroscopic, their moisture content will change with
humidity in the atmosphere a
...

NORME ISO
INTERNATIONALE 18134-3
Deuxième édition
2023-06
Biocombustibles solides — Dosage de
la teneur en humidité —
Partie 3:
Humidité de l'échantillon pour
analyse générale
Solid biofuels — Determination of moisture content —
Part 3: Moisture in general analysis sample
Numéro de référence
ISO 18134-3:2023(F)
© ISO 2023

---------------------- Page: 1 ----------------------
ISO 18134-3:2023(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2023
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: [phone]
E-mail: [e-mail]
Web: www.iso.org
Publié en Suisse
ii
  © ISO 2023 – Tous droits réservés

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ISO 18134-3:2023(F)
Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives .1
3 Termes et définitions . 1
4 Principe. 2
5 Appareillage . 2
6 Préparation de l’échantillon . 2
6.1 Généralités . 2
6.2 Taille de la prise d'essai . 3
7 Mode opératoire . 3
8 Calcul . 3
9 Caractéristiques de performance .4
9.1 Répétabilité . 4
9.2 Reproductibilité . . 4
10 Rapport d’essai . 4
Bibliographie . 5
iii
© ISO 2023 – Tous droits réservés

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ISO 18134-3:2023(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L’ISO attire l’attention sur le fait que la mise en application du présent document peut entraîner
l’utilisation d’un ou de plusieurs brevets. L’ISO ne prend pas position quant à la preuve, à la validité
et à l’applicabilité de tout droit de brevet revendiqué à cet égard. À la date de publication du présent
document, l’ISO n'avait pas reçu notification qu’un ou plusieurs brevets pouvaient être nécessaires à sa
mise en application. Toutefois, il y a lieu d’avertir les responsables de la mise en application du présent
document que des informations plus récentes sont susceptibles de figurer dans la base de données de
brevets, disponible à l'adresse www.iso.org/brevets. L’ISO ne saurait être tenue pour responsable de ne
pas avoir identifié tout ou partie de tels droits de propriété.
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion
de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 238, Biocombustibles solides, en
collaboration avec le comité technique CEN/TC 335, Biocombustibles solides, du Comité européen de
normalisation (CEN), conformément à l'Accord de coopération technique entre l'ISO et le CEN (Accord
de Vienne).
Cette deuxième édition annule et remplace la première édition (ISO 18134-3:2015) qui a fait l’objet
d’une révision technique.
Les principales modifications sont les suivantes:
— Article 6: une mention d’avertissement pour éviter le gain ou la perte d’humidité pendant la
préparation de l’échantillon a été ajoutée;
— les références ont été mises à jour;
— des corrections rédactionnelles mineures ont été apportées.
Une liste de toutes les parties de la série ISO 18134 peut être consultée sur le site web de l’ISO.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes
se trouve à l’adresse www.iso.org/fr/members.html.
iv
  © ISO 2023 – Tous droits réservés

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NORME INTERNATIONALE ISO 18134-3:2023(F)
Biocombustibles solides — Dosage de la teneur en
humidité —
Partie 3:
Humidité de l'échantillon pour analyse générale
1 Domaine d’application
Le présent document décrit la méthode de dosage de la teneur en humidité de l'échantillon pour analyse
par séchage à l'étuve. La méthode décrite dans le présent document est applicable à l’ensemble des
biocombustibles solides. La teneur en humidité des biocombustibles solides (à réception) est toujours
rapportée à la masse totale de l'échantillon pour essai (base humide).
Les biocombustibles constitués de particules de petite taille étant très hygroscopiques, leur teneur en
humidité varie en fonction de l'humidité de l'atmosphère et, par conséquent, l'humidité de l’échantillon
pour analyse générale est établie simultanément avec la détermination d’autres propriétés mesurées
(par exemple, le pouvoir calorifique, la matière volatile, les métaux, etc.).
NOTE Les matériaux de la biomasse peuvent contenir de pe
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 18134-3
ISO/TC 238
Solid biofuels — Determination of
Secretariat: SIS
moisture content —
Voting begins on:
2023-03-09
Part 3:
Voting terminates on:
Moisture in general analysis sample
2023-05-04
Biocombustibles solides — Dosage de la teneur en humidité —
Partie 3: Humidité de l'échantillon pour analyse générale
ISO/CEN PARALLEL PROCESSING
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 SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 18134-3:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/FDIS 18134-3:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 18134-3
ISO/TC 238
Solid biofuels — Determination of
Secretariat: SIS
moisture content —
Voting begins on:
Part 3:
Voting terminates on:
Moisture in general analysis sample
Biocombustibles solides — Dosage de la teneur en humidité —
Partie 3: Humidité de l'échantillon pour analyse générale
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
ISO/CEN PARALLEL PROCESSING
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.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 18134-3:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 2 ----------------------
ISO/FDIS 18134-3:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Sample preparation .2
6.1 General . 2
6.2 Size of test portion . 2
7 Procedure .3
8 Calculation . 3
9 Performance characteristics . 3
9.1 Repeatability . 3
9.2 Reproducibility . 3
10 Test report . 4
Bibliography . 5
iii
© ISO 2023 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/FDIS 18134-3:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 238, Solid biofuels, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 335, Solid biofuels, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 18134-3:2015), which has been
technically revised.
The main changes are as follows:
— Clause 6: statement added warning against loss or gain of moisture during sample preparation;
— references updated;
— minor editorial corrections.
A list of all parts in the ISO 18134 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
  © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
FINAL DRAFT INTERNATIONAL S
...

ISO/FDIS 18134-3:2023(E)
ISO TC 238
Secretariat: SIS
Date: 2023-01-1302-22
Solid biofuels — Determination of moisture content — Part 3: Moisture in general analysis
sample

---------------------- Page: 1 ----------------------
ISO/DISFDIS 18134-3:20222023(E)
© ISO 20222023
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
Formatted: Font: 11 pt
Formatted: Space After: 12 pt, Line spacing: Exactly 11
pt
ii © ISO 2022 – All rights reserved
ii © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/DISFDIS 18134-3:20222023(E)
Contents
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Sample preparation . 2
6.1 General . 2
6.2 Size of test portion . 2
7 Procedure . 2
8 Calculation . 3
9 Performance characteristics . 3
9.1 Repeatability . 3
9.2 Reproducibility . 3
10 Test report . 3
Bibliography . 5
Foreword . iv
Formatted: Font: 11 pt
Formatted: Space After: 12 pt, Line spacing: Exactly 11
pt
© ISO 2022 – All rights reserved iii
© ISO 2023 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO/DISFDIS 18134-3:20222023(E)
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Sample preparation . 2
6.1 General . 2
6.2 Size of test portion . 2
7 Procedure . 2
8 Calculation . 3
9 Performance characteristics . 3
9.1 Repeatability . 3
9.2 Reproducibility . 3
10 Test report . 3
Bibliography . 5
Formatted: Font: 11 pt
Formatted: Space After: 12 pt, Line spacing: Exactly 11
pt
iv © ISO 2022 – All rights reserved
iv © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/DISFDIS 18134-3:20222023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directiveswww.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received (see www.iso.org/patentswww.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the World
Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 238, Solid biofuels, in collaboration with
the European Committee for Standardization (CEN) Technical Committee CEN/TC 335, Solid biofuels, in
accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 18134-3:2015), which has been technically
revised.
The main changes are as follows:
— Clause 6: statement added warning against loss or gain of moisture during sample preparation;
— references updated;
— minor editorial corrections.
A list of all parts in the ISO 18134 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at
Formatted: Font: 11 pt
www.iso.org/members.htmlwww.iso.org/members.html.
Formatted: Space After: 12 pt, Line spacing: Exactly 11
pt
© ISO 2022 – All rights reserved v
© ISO 2023 – All rights reserved v

---------------------- Page: 5 -------------
...