prEN ISO 638-1

Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content by oven-drying method - Part 1: Materials in solid form (ISO/FDIS 638-1:2021)

This document specifies an oven-drying method for the determination of the dry matter content in paper, board, pulp and cellulosic nanomaterials in solid form, which all can be produced from virgin and /or recycled materials.
It is also applicable to the determination of the dry matter content of paper and board for recycling.
The procedure is applicable to paper, board, and pulp and cellulosic nanomaterials which do not contain any appreciable quantities of materials other than water that are volatile at the temperature of 105 °C ± 2 °C. It is used, for example, in the case of pulp, paper, and board and cellulosic nanomaterial samples taken for chemical and physical tests in the laboratory, when a concurrent determination of dry matter content is required.
This method is not applicable to the determination of the dry matter content of slush pulp or to the determination of the saleable mass of pulp lots.
NOTE 1    ISO 638-2[1] specifies an oven-drying method for the determination of the dry matter content of suspensions of cellulosic nanomaterials, ISO 287[2] specifies the determination of the moisture content of a lot of paper and board; ISO 4119[3] specifies the determination of stock concentration of pulps; the ISO 801 series[4] specifies the determination of the saleable mass in lots.
NOTE 2    This document determines the total dry matter content of the sample, including any dissolved solids. If only the cellulosic material content free of dissolved solids is desired, dissolved solids are removed prior to measuring the dry matter content, e.g. by washing or dialysis, taking care to retain all cellulosic material; in cases where the sample is filterable without loss of cellulosic solids, ISO 4119[3] can be used to determine the stock consistency (content of cellulosic material in solid form).

Papier, Pappe, Faserstoff und cellulosehaltige Nanomaterialien - Bestimmung des Trockengehaltes durch das Wärmeschrankverfahren - Teil 1: Materialien in fester Form (ISO/FDIS 638-1:2021)

Dieses Dokument legt ein Wärmeschrankverfahren für die Bestimmung des Trockengehaltes von Papier, Pappe, Faserstoff und cellulosehaltigen Nanomaterialien in fester Form fest, die jeweils aus Neumaterial und/oder recyceltem Material hergestellt werden können.
Es ist zudem anzuwenden für die Bestimmung des Trockengehaltes von Papier und Pappe für das Recycling.
Das Verfahren ist anzuwenden für Papier, Pappe und Faserstoff sowie cellulosehaltige Nanomaterialien, die außer Wasser keine nennenswerten Mengen von Materialien enthalten, die bei einer Temperatur von 105 °C ± 2 °C flüchtig sind. Es wird z. B. im Fall von Faserstoff-, Papier- und Pappe-Durchschnittsproben sowie Durchschnittsproben von cellulosehaltigen Nanomaterialien verwendet, die für chemische und physikalische Prüfungen im Laboratorium entnommen werden, wenn eine gleichzeitige Bestimmung des Trockengehaltes erforderlich ist.
Dieses Verfahren ist nicht anzuwenden für die Bestimmung des Trockengehaltes von Faserstoff-Suspensionen oder für die Bestimmung der verkaufsfähigen Masse von Faserstoff-Lieferposten.
ANMERKUNG 1 ISO 638-2 [1] legt ein Wärmeschrankverfahren für die Bestimmung des Trockengehaltes von Suspensionen von cellulosehaltigen Nanomaterialien fest; ISO 287 [2] legt die Bestimmung des Feuchtegehaltes in einem Lieferposten Papier oder Pappe fest; ISO 4119 [3] legt die Bestimmung der Stoffdichte von Faserstoffen fest; die Normenreihe ISO 801 [4] legt die Bestimmung der verkaufsfähigen Masse in Lieferposten fest.
ANMERKUNG 2 Dieses Dokument dient der Bestimmung des Gesamttrockengehaltes der Durchschnittsprobe einschließlich jeglicher gelöster Feststoffe. Wird nur der Gehalt an cellulosehaltigem Material ohne die gelösten Feststoffe gewünscht, werden gelöste Feststoffe vor der Messung des Trockengehaltes z. B. durch Waschen oder Dialyse entfernt, wobei darauf geachtet wird, dass das gesamte cellulosehaltige Material erhalten bleibt; in Fällen, in denen die Durchschnittsprobe ohne Verlust von cellulosehaltigen Feststoffen gefiltert werden kann, kann ISO 4119 [3] angewendet werden, um die Stoffdichte (Gehalt an cellulosehaltigem Material in fester Form) zu bestimmen.

Papiers, cartons, pâtes et nanomatériaux cellulosiques - Détermination de la teneur en matières sèches par séchage à l'étuve - Partie 1: Matériaux sous forme solide (ISO/FDIS 638-1:2021)

Le présent document spécifie une méthode de séchage à l’étuve pour la détermination de la teneur en matières sèches dans le papier, le carton, la pâte et les nanomatériaux cellulosiques sous forme solide, tous pouvant être produits à partir de matériaux vierges et/ou recyclés.
Elle est aussi applicable pour la détermination de la teneur en matières sèches du papier et du carton à recycler.
La méthode est applicable au papier, au carton, à la pâte et aux nanomatériaux cellulosiques ne contenant pas des quantités appréciables de matières autres que l’eau volatiles à la température de 105 °C ± 2 °C. Elle est utilisée, par exemple, dans le cas d’échantillons de pâte, de papier, de carton et de nanomatériaux cellulosiques prélevés en vue d’analyses chimiques et physiques effectuées en laboratoire lorsqu’il faut procéder à une détermination simultanée de la teneur en matières sèches.
Cette méthode n’est pas applicable pour la détermination de la teneur en matières sèches d’une suspension de pâte, ni pour la détermination de la masse marchande de lots de pâte.
NOTE 1    L’ISO 638-2[1] spécifie une méthode de séchage à l’étuve pour la détermination de la teneur en matières sèches dans des suspensions de nanomatériaux cellulosiques, l’ISO 287[2] spécifie la méthode de détermination de la teneur en humidité d’un lot de papier et carton, l’ISO 4119[3] spécifie la méthode de détermination de la concentration en pâte de suspensions aqueuses de pâtes, la série ISO 801[4] spécifie la méthode de détermination de la masse marchande de lots.
NOTE 2    Le présent document permet de déterminer la teneur totale en matières sèches d’un échantillon, y compris tout solide dissous. Pour obtenir la teneur en matériaux cellulosiques sans solides dissous, ces derniers sont éliminés avant de mesurer la teneur en matières sèches, par exemple par lavage ou dialyse, en prenant soin de conserver l’ensemble des matériaux cellulosiques. Lorsque l’échantillon peut être filtré sans perte de solides cellulosiques, l’ISO 4119[3] peut être utilisée pour déterminer la concentration en pâte (teneur en matériaux cellulosiques sous forme solide).

Papir, karton, lepenka in vlaknine ter celulozni nanomateriali - Določevanje suhe snovi z metodo sušenja v sušilniku - 1. del: Materiali v trdni obliki (ISO/FDIS 638-1:2021)

General Information

• Status: Not Published
• ICS: 85.040 - Pulps
• ICS: 85.060 - Paper and board
• Technical Committee: CEN/TC 172 - Pulp, paper and board
• Current Stage: 6055 - CEN Ratification completed (DOR) - Publishing
• Due Date: 14-Mar-2022
• Completion Date: 14-Mar-2022
• Ref Project: oSIST prEN ISO 638-1:2022 - Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content by oven-drying method - Part 1: Materials in solid form (ISO/FDIS 638-1:2021)

RELATIONS

• Revised: EN ISO 638-1:2021 - Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content by oven-drying method - Part 1: Materials in solid form (ISO 638-1:2021)
• Effective Date: 01-Sep-2021

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN ISO 638-1:2022
01-januar-2022

Papir, karton, lepenka in vlaknine ter celulozni nanomateriali - Določevanje suhe

snovi z metodo sušenja v sušilniku - 1. del: Materiali v trdni obliki (ISO/FDIS 638-

1:2021)

Paper, board, pulps and cellulosic nanomaterials - Determination of dry matter content

by oven-drying method - Part 1: Materials in solid form (ISO/FDIS 638-1:2021)
Papier, Pappe, Faserstoff und cellulosehaltige Nanomaterialien - Bestimmung des

Trockengehaltes durch das Wärmeschrankverfahren - Teil 1: Materialien in fester Form

(ISO/FDIS 638-1:2021)

Papiers, cartons, pâtes et nanomatériaux cellulosiques - Détermination de la teneur en

matières sèches par séchage à l'étuve - Partie 1: Matériaux sous forme solide (ISO/FDIS

638-1:2021)
Ta slovenski standard je istoveten z: prEN ISO 638-1 rev
ICS:
85.040 Vlaknine Pulps
85.060 Papir, karton in lepenka Paper and board
oSIST prEN ISO 638-1:2022 en,fr,de

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

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oSIST prEN ISO 638-1:2022
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oSIST prEN ISO 638-1:2022
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 638-1
ISO/TC 6
Paper, board, pulps and cellulosic
Secretariat: SCC
nanomaterials — Determination of
Voting begins on:
2021-11-12 dry matter content by oven-drying
method —
Voting terminates on:
2022-02-04
Part 1:
Materials in solid form
Papiers, cartons, pâtes et nanomatériaux cellulosiques —
Détermination de la teneur en matières sèches par séchage à
l'étuve —
Partie 1: Matériaux sous forme solide
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 638-1:2021(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 2021
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oSIST prEN ISO 638-1:2022
ISO/FDIS 638-1:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

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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Phone: [phone]
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Website: www.iso.org
Published in Switzerland
© ISO 2021 – All rights reserved
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oSIST prEN ISO 638-1:2022
ISO/FDIS 638-1:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 3

5 Apparatus .................................................................................................................................................................................................................... 3

6 Sampling ....................................................................................................................................................................................................................... 3

7 Preparation of test pieces ..........................................................................................................................................................................3

7.1 General ........................................................................................................................................................................................................... 3

7.2 Paper and board for recycling .................................................................................................................................................. 3

7.3 Paper, board, pulp and cellulosic nanomaterial in solid form ...................................................................... 3

8 Procedure ....................................................................................................................................................................................................................4

9 Calculation and expression of results ........................................................................................................................................... 5

10 Precision ....................................................................................................................................................................................................................... 5

11 Test report .................................................................................................................................................................................................................. 5

Annex A (informative) Calculation of the moisture content ...................................................................................................... 6

Annex B (informative) Precision ............................................................................................................................................................................. 7

Bibliography .............................................................................................................................................................................................................................10

iii
© ISO 2021 – All rights reserved
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oSIST prEN ISO 638-1:2022
ISO/FDIS 638-1:2021(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 6, Paper, board and pulps, in collaboration

with the European Committee for Standardization (CEN) Technical Committee CEN/TC 172, Pulp, paper

and board, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna

Agreement).

This second edition cancels and replaces the first edition (ISO 638-1:2021), of which it constitutes a

minor revision. The changes are as follows:
— correction of the cross-references in Clause 8;
— editorial update.

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 2021 – All rights reserved
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oSIST prEN ISO 638-1:2022
ISO/FDIS 638-1:2021(E)
Introduction

Determination of dry matter content and moisture content are carried out for different purposes.

This document is used when the dry matter content is needed to calculate the results for chemical

analysis or physical testing, or to determine the moisture content of paper, board, and pulp and

cellulosic nanomaterials in solid form. An example of this is where the results of a chemical analysis for

cadmium or manganese are required on the basis of the oven-dry mass of the sample.

[1]

ISO 638-2 is dedicated to the determination of the dry matter content or water content of cellulosic

nanomaterials in the form of suspensions.
[2]

ISO 287 should be used for the purpose of determining the average moisture content and the variation

in moisture content (maximum and minimum values) of a lot of paper and board. In the converting of

paper and board, moisture content is important as it can have an effect on processes such as printing

and copying. Moisture content can have an effect on curl and dimensional stability.

[3]

ISO 4119 should be used in laboratory procedures or is referred to in other International Standards

in which the concentration of an aqueous pulp suspension requires determination.
© ISO 2021 – All rights reserved
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oSIST prEN ISO 638-1:2022
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oSIST prEN ISO 638-1:2022
FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 638-1:2021(E)
Paper, board, pulps and cellulosic nanomaterials —
Determination of dry matter content by oven-drying
method —
Part 1:
Materials in solid form
1 Scope

This document specifies an oven-drying method for the determination of the dry matter content in

paper, board, pulp and cellulosic nanomaterials in solid form, which all can be produced from virgin

and /or recycled materials.

It is also applicable to the determination of the dry matter content of paper and board for recycling.

The procedure is applicable to paper, board, and pulp and cellulosic nanomaterials which do not

contain any appreciable quantities of materials other than water that are volatile at the temperature of

105 °C ± 2 °C. It is used, for example, in the case of pulp, paper, and board and cellulosic nanomaterial

samples taken for chemical and physical tests in the laboratory, when a concurrent determination of

dry matter content is required.

This method is not applicable to the determination of the dry matter content of slush pulp or to the

determination of the saleable mass of pulp lots.
[1]

NOTE 1 ISO 638-2 specifies an oven-drying method for the determination of the dry matter content of

[2]

suspensions of cellulosic nanomaterials, ISO 287 specifies the determination of the moisture content of a lot

[3] [4]

of paper and board; ISO 4119 specifies the determination of stock concentration of pulps; the ISO 801 series

specifies the determination of the saleable mass in lots.

NOTE 2 This document determines the total dry matter content of the sample, including any dissolved solids.

If only the cellulosic material content free of dissolved solids is desired, dissolved solids are removed prior to

measuring the dry matter content, e.g. by washing or dialysis, taking care to retain all cellulosic material; in

[3]

cases where the sample is filterable without loss of cellulosic solids, ISO 4119 can be used to determine the

stock consistency (content of cellulosic material in solid form)
2 Normative references

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.

ISO 186, Paper and board — Sampling to determine average quality
ISO 7213, Pulps — Sampling for testing

EN 17085, Paper and board – Sampling procedures for paper and board for recycling

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
© ISO 2021 – All rights reserved
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oSIST prEN ISO 638-1:2022
ISO/FDIS 638-1:2021(E)

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
cellulosic nanomaterial
CNM

material composed predominantly of cellulose, with any external dimension in the nanoscale (3.5)

Note 1 to entry: The terms nanocellulose (NC) and cellulose nanomaterial (CNM) are synonymous with cellulosic

nanomaterial (CNM).

Note 2 to entry: Some cellulosic nanomaterials can be composed of chemically modified cellulose.

[SOURCE: ISO/TS 20477:2017, 3.3.1, modified ─ “or a material having internal structure or surface

structure in the nanoscale, with the internal structure or surface structure composed predominantly

of cellulose” deleted from the definition, “cellulose” changed to “cellulosic”, Note 3 to entry deleted.]

3.2
constant mass

mass of the test piece determined at the equilibrium condition after drying until the difference between

two successive dryings and weighings, separated in time by at least half the initial drying period, does

not exceed 0,1 % mass fraction of the test piece before drying
3.3
dry matter content

ratio of the mass of a test piece after drying to constant mass (3.2) at a temperature of 105 °C ± 2 °C

under specified conditions, to its mass before drying

Note 1 to entry: The dry matter content is usually expressed as a percentage mass fraction.

3.4
moisture content

content of water in paper or board, i.e. the ratio of the loss of mass of a test piece, when dried at a

temperature of 105 °C ± 2 °C under specified conditions, to its mass at the time of sampling

Note 1 to entry: The moisture content is normally expressed as a percentage mass fr

...