SIST EN ISO 287:2009
(Main)Paper and board - Determination of moisture content of a lot - Oven-drying method (ISO 287:2009)
Paper and board - Determination of moisture content of a lot - Oven-drying method (ISO 287:2009)
ISO 287:2009 specifies an oven-drying method for the determination of the moisture content of a lot of paper and board.
ISO 287:2009 is applicable to every type of lot of paper and board, including corrugated board and solid board, provided that the paper or board does not contain any substances, other than water, that are volatile at the temperature specified in ISO 287:2009.
For the determination of the dry matter content of a sample, ISO 638:2008 can be used.
Papier und Pappe - Bestimmung des Feuchtegehaltes eines Lieferpostens - Wärmeschrankverfahren (ISO 287:2009)
Diese Internationale Norm legt ein Wärmeschrankverfahren zur Bestimmung des Feuchtegehaltes in einem Lieferposten von Papier und Pappe fest. Die Ausführungen in Abschnitt 8 dieser Internationalen Norm beschreiben, wie eine Probe aus einem Lieferposten gezogen wird, und zwar während der Durchführung der Probenahme.
Diese Internationale Norm ist auf jeden Lieferposten von Papier und Pappe anwendbar, einschließlich Wellpappe und Vollpappe, vorausgesetzt, dass das Papier oder die Pappe außer Wasser keine flüchtigen Bestandteile enthält, die bei der für die Prüfung vorgegebenen Trocknungstemperatur entweicht.
Für die Bestimmung des Trockengehaltes einer Durchschnittsprobe muss ISO 638 angewendet werden [1].
Papier et carton - Détermination de la teneur en humidité d'un lot - Méthode par séchage à l'étuve (ISO 287:2009)
L'ISO 287:2009 spécifie une méthode de détermination de la teneur en humidité d'un lot de papier et de carton par séchage à l'étuve.
L'ISO 287:2009 est applicable à tous les lots de papier et carton, y compris le carton ondulé et le carton plat dans la mesure où ils ne contiennent pas de matières, autres que l'eau, qui sont volatiles à la température spécifiée dans l'ISO 287:2009 .
Pour la détermination de la teneur en matières sèches d'un échantillon, l'ISO 638:2008 peut être utilisée.
Papir, karton in lepenka - Določevanje vlage v lotu - Metoda sušenja v sušilniku (ISO 287:2009)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 287:2009
01-oktober-2009
1DGRPHãþD
SIST EN 20287:2000
3DSLUNDUWRQLQOHSHQND'RORþHYDQMHYODJHYORWX0HWRGDVXãHQMDYVXãLOQLNX
,62
Paper and board - Determination of moisture content of a lot - Oven-drying method (ISO
287:2009)
Papier und Pappe - Bestimmung des Feuchtegehaltes eines Lieferpostens -
Wärmeschrankverfahren (ISO 287:2009)
Papier et carton - Détermination de la teneur en humidité d'un lot - Méthode par séchage
à l'étuve (ISO 287:2009)
Ta slovenski standard je istoveten z: EN ISO 287:2009
ICS:
85.060 Papir, karton in lepenka Paper and board
SIST EN ISO 287:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 287:2009
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SIST EN ISO 287:2009
EUROPEAN STANDARD
EN ISO 287
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2009
ICS 85.060 Supersedes EN 20287:1994
English Version
Paper and board - Determination of moisture content of a lot -
Oven-drying method (ISO 287:2009)
Papier et carton - Détermination de la teneur en humidité Papier und Pappe - Bestimmung des Feuchtegehaltes
d'un lot - Méthode par séchage à l'étuve (ISO 287:2009) eines Lieferpostens - Wärmeschrankverfahren (ISO
287:2009)
This European Standard was approved by CEN on 27 May 2009.
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,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 287:2009: E
worldwide for CEN national Members.
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SIST EN ISO 287:2009
EN ISO 287:2009 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 287:2009
EN ISO 287:2009 (E)
Foreword
This document (EN ISO 287:2009) 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 December 2009, and conflicting national standards shall be withdrawn
at the latest by December 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 20287:1994.
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 287:2009 has been approved by CEN as a EN ISO 287:2009 without any modification.
3
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SIST EN ISO 287:2009
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SIST EN ISO 287:2009
INTERNATIONAL ISO
STANDARD 287
Third edition
2009-06-01
Paper and board — Determination of
moisture content of a lot — Oven-drying
method
Papier et carton — Détermination de la teneur en humidité d'un lot —
Méthode par séchage à l'étuve
Reference number
ISO 287:2009(E)
©
ISO 2009
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SIST EN ISO 287:2009
ISO 287:2009(E)
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ii © ISO 2009 – All rights reserved
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SIST EN ISO 287:2009
ISO 287:2009(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Principle. 1
5 Apparatus . 2
6 Preparation of containers . 2
7 Sampling. 2
8 Selection, preparation and weighing of test pieces. 2
9 Procedure . 5
10 Calculation and expression of results. 6
11 Precision. 6
12 Test report . 7
Bibliography . 9
© ISO 2009 – All rights reserved iii
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SIST EN ISO 287:2009
ISO 287:2009(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 287 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps, Subcommittee SC 2, Test
methods and quality specifications for paper and board.
This third edition cancels and replaces the second edition (ISO 287:1985), which has been technically revised.
The title has been elucidated so that it can be seen from the title that the method is intended for determination
of the moisture content of a lot at the time of sampling.
For determinations of the dry matter content of a sample of paper or board, e.g. for calculation of the dry mass
[1]
of the sample, ISO 638 is recommended.
iv © ISO 2009 – All rights reserved
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SIST EN ISO 287:2009
ISO 287:2009(E)
Introduction
The determination of dry matter content and moisture content are carried out for different purposes.
[1]
ISO 638 is used in cases where the dry matter content is needed to calculate the result of chemical
analysis or physical testing and when the determination of the moisture content of a sample, rather than a lot,
is required. As an example, the dry matter content of the sample is needed to express the content of elements,
such as cadmium and manganese, in relation to the oven-dry mass of the sample.
This International Standard is 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 paper and board trade, the
moisture content is important since it influences converting processes, such as printing and copying. The
moisture content also has an influence on curl and dimensional stability.
© ISO 2009 – All rights reserved v
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SIST EN ISO 287:2009
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SIST EN ISO 287:2009
INTERNATIONAL STANDARD ISO 287:2009(E)
Paper and board — Determination of moisture content of a
lot — Oven-drying method
1 Scope
This International Standard specifies an oven-drying method for the determination of the moisture content of a
lot of paper and board. The procedure in Clause 8, describing how the test pieces are drawn from the lot, is
performed at the time of sampling.
This International Standard is applicable to every type of lot of paper and board, including corrugated board
and solid board, provided that the paper or board does not contain any substances, other than water, that are
volatile at the temperature specified in this International Standard.
[1]
For the determination of the dry matter content of a sample, ISO 638 can be used.
2 Normative references
The following referenced documents are indispensable for the application 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
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
moisture content
w
HO
2
content of water in paper or board, i.e. the ratio of the loss of mass of a test piece, when dried according to the
procedure described in this International Standard, to its mass at the time of sampling
NOTE The moisture content is normally expressed as a percentage mass fraction.
3.2
constant mass
mass reached by a test piece of paper or board after drying at a temperature of (105 ± 2) °C 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 % of the initial mass of the test piece at the time of sampling
4 Principle
At the time of sampling, weighing of test pieces taken from a lot and weighing the test pieces again after
drying to constant mass. From the mass of a test piece before and after drying, the moisture content is
calculated.
© ISO 2009 – All rights reserved 1
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SIST EN ISO 287:2009
ISO 287:2009(E)
5 Apparatus
5.1 Balance, having an accuracy of 0,05 % of the mass to be weighed, or better.
5.2 Containers, for the transport and weighing of test pieces, which shall be water-vapour proof and made
from a lightweight material that is not subject to change under the conditions of test.
5.3 Oven, capable of maintaining the air temperature at (105 ± 2) °C, and suitably ventilated to maintain a
uniform temperature in the usable volume whilst extracting the moisture driven off the test pieces.
5.4 Desiccator.
6 Preparation of containers
Before sampling, number a sufficient number of clean, dry containers (5.2). Allow the containers to attain
temperature equilibrium with the atmosphere. Use a balance (5.1) and weigh each container. Keep the
containers closed until the sample is about to be taken.
7 Sampling
Select the units to be sampled in accordance with ISO 186.
Precautions shall be taken when handling the paper or board to avoid contamination and any gain or
...
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