ISO/FDIS 18134-3

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

ISO 18134-3:2015 describes the method of determining the moisture in the analysis test sample by drying in an oven. It is intended to be used for general analysis samples in accordance with EN 14780. The method described in this part of ISO 18134-3:2015 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 test portion is determined simultaneously with determination of for example calorific value, carbon content, and nitrogen content. NOTE The term moisture content when used with biomass materials can be misleading since untreated biomass frequently contains varying amounts of volatile compounds (extractives) which can evaporate when determining the moisture content by oven drying (see References [1] and [2]).

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

L'ISO 18134-3:2015 décrit la méthode de détermination de l'humidité de l'échantillon pour analyse par séchage à l'étuve. Elle est destinée à être utilisée sur des échantillons pour analyse générale conformément à l'EN 14780. La méthode décrite dans la présente partie de l'ISO 18134-3:2015est 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 (en conditions humides). 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 la prise d'essai est établie simultanément avec la détermination, par exemple, du pouvoir calorifique et de la teneur en carbone ou en azote. NOTE Lorsqu'il est employé dans un contexte de matériaux de biomasse, le terme « teneur en humidité » peut prêter à confusion, car la biomasse non traitée contient souvent des quantités variables de composés volatils (extraits) susceptibles de s'évaporer lors de la détermination de la teneur en humidité par séchage à l'étuve (voir Références [1] et [2]).

General Information

• Status: Not Published
• 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: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Start Date: 09-Mar-2023
• Completion Date: 09-Mar-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)

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
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
© 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
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
© ISO 2022 – All rights reserved v
© ISO 2023 – All rights reserved v
---------------------- Page: 5 -------------
...

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
© 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.
© ISO 2023 – All rights reserved
---------------------- Page: 4 ----------------------
FINAL DRAFT INTERNATIONAL S
...