EN ISO 638:2008
(Main)Paper, board and pulps - Determination of dry matter content - Oven-drying method (ISO 638:2008)
Paper, board and pulps - Determination of dry matter content - Oven-drying method (ISO 638:2008)
ISO 638:2008 specifies an oven-drying method for the determination of the dry matter in paper, board and pulp.
The procedure is applicable to paper, board and pulp which does 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 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.
Papier, Pappe und Faserstoff - Bestimmung des Trockengehaltes - Wärmeschrankverfahren (ISO 638:2008)
Diese Internationale Norm legt ein Wärmeschrankverfahren für die Bestimmung des Trockengehaltes von Papier-, Pappe- und Zellstoff-Durchschnittsproben fest.
Dieses Verfahren ist auf Papier, Pappe und Zellstoff anwendbar, welche keine nennenswerten Mengen an anderem Material als Wasser aufweisen und welche bei einer Temperatur von (105 ± 2) °C nicht flüchtig sind. Im Fall von Zellstoff, Papier und Pappe beispielsweise werden Durchschnittsproben für chemische und physikalische Prüfungen im Labor entnommen, wenn gleichzeitig eine Bestimmung des Trockengehaltes gefordert ist.
Dieses Verfahren gilt nicht für die Bestimmung des Trockengehaltes von Zellstoffsuspensionen oder für die Bestimmung der verkaufsfähigen Masse von Zellstofflieferposten.
ANMERKUNG ISO 287[1] legt die Bestimmung des Feuchtegehaltes in einem Lieferposten Papier oder Pappe fest. ISO 4119[3] legt die Bestimmung der Stoffdichte von Faserstoff fest. ISO 801 (alle Teile)[2] legt die Bestimmung von verkaufsfähigen Massen in Lieferposten fest.
Papiers, cartons et pâtes - Détermination de la teneur en matières sèches - Méthode par séchage à l'étuve (ISO 638:2008)
L'ISO 638:2008 spécifie une méthode par séchage à l'étuve pour la détermination de la teneur en matières sèches d'échantillons de papier, de carton et de pâte.
La méthode est applicable au papier, au carton et à la pâte 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 et de carton prélevés en vue d'analyses chimiques et physiques effectués en laboratoire lorsqu'il faut procéder à la 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.
Papir, karton, lepenka in vlaknine - Določevanje suhe snovi - Metoda sušenja v sušilniku (ISO 638:2008)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2009
1DGRPHãþD
SIST EN 20638:2000
3DSLUNDUWRQOHSHQNDLQYODNQLQH'RORþHYDQMHVXKHVQRYL0HWRGDVXãHQMDY
VXãLOQLNX ,62
Paper, board and pulps - Determination of dry matter content - Oven-drying method (ISO
638:2008)
Papier, Pappe und Faserstoff - Bestimmung des Trockengehaltes -
Wärmeschrankverfahren (ISO 638:2008)
Pâtes - Détermination de la teneur en matieres seches - Méthode par séchage au four
(ISO 638:2008)
Ta slovenski standard je istoveten z: EN ISO 638:2008
ICS:
85.040 Vlaknine Pulps
85.060 Papir, karton in lepenka Paper and board
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 638
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2008
ICS 85.040; 85.060 Supersedes EN 20638:1993
English Version
Paper, board and pulps - Determination of dry matter content -
Oven-drying method (ISO 638:2008)
Papiers, cartons et pâtes - Détermination de la teneur en Papier, Pappe und Faserstoff - Bestimmung des
matières sèches - Méthode par séchage à l'étuve (ISO Trockengehaltes - Wärmeschrankverfahren (ISO 638:2008)
638:2008)
This European Standard was approved by CEN on 13 September 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
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Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 638:2008: E
worldwide for CEN national Members.
Contents Page
Foreword.3
Foreword
This document (EN ISO 638:2008) has been prepared by Technical Committee ISO/TC 6 "Paper, board and
pulps" in collaboration with Technical Committee CEN/TC 172 “Pulp, paper and board” the secretariat of
which is held by DIN.
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 April 2009, and conflicting national standards shall be withdrawn at the
latest by April 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 20638:1993.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 638:2008 has been approved by CEN as a EN ISO 638:2008 without any modification.
INTERNATIONAL ISO
STANDARD 638
Second edition
2008-10-01
Paper, board and pulps — Determination
of dry matter content — Oven-drying
method
Papiers, cartons et pâtes — Détermination de la teneur en matières
sèches — Méthode par séchage à l'étuve
Reference number
ISO 638:2008(E)
©
ISO 2008
ISO 638:2008(E)
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ISO 638:2008(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 638 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps.
This second edition cancels and replaces the first edition (ISO 638:1978), which has been technically revised.
The scope has been changed to cover also paper and board instead of only pulps.
ISO 638:2008(E)
Introduction
Determination of dry matter content and moisture content are carried out for different purposes.
This International Standard should be used when the dry matter content is needed to calculate the results for
chemical analysis or physical testing. 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 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. 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.
[2]
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.
iv © ISO 2008 – All rights reserved
INTERNATIONAL STANDARD ISO 638:2008(E)
...
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