SIST EN ISO 5264-2:2011
(Main)Pulps - Laboratory beating - Part 2: PFI mill method (ISO 5264-2:2011)
Pulps - Laboratory beating - Part 2: PFI mill method (ISO 5264-2:2011)
This part of ISO 5264 specifies a method for the laboratory beating of pulp using a PFI mill. The description is limited to the sampling, preparation and beating of the pulp and the beating equipment.
Faserstoff - Labormahlung - Teil 2: PFI-Mühle-Verfahren (ISO 5264-2:2011)
Dieser Teil von ISO 5264 legt ein Verfahren zur Labormahlung von Zellstoff unter Verwendung einer PFIMühle fest. Die Beschreibung ist auf die Probenahme, die Vorbereitung und das Mahlen von Zellstoff sowie die Mahleinrichtung beschränkt.
ANMERKUNG Das Mahlen ist die Vorstufe zur Prüfung der physikalischen Eigenschaften von Zellstoff.
Grundsätzlich ist dieses Verfahren auf alle Arten von Chemie- und Halbzellstoff anwendbar. In der Praxis
kann dieses Verfahren bei extrem langfaserigen Zellstoffen keine zufriedenstellenden Ergebnisse liefern.
Pâtes - Raffinage de laboratoire - Partie 2: Méthode au moulin PFI (ISO 5264-2:2011)
L'ISO 5264-2:2011 spécifie une méthode utilisant un moulin PFI pour le raffinage de la pâte en laboratoire. La description se limite à l'échantillonnage, à la préparation, au raffinage en pile de la pâte ainsi qu'à l'appareillage de raffinage.
En principe, la méthode est applicable à tous les types de pâtes chimiques et mi-chimiques. Dans la pratique, la méthode peut ne pas donner de résultats satisfaisants avec certaines pâtes à fibres extrêmement longues.
Vlaknine - Laboratorijsko mletje - 2. del: Metoda z mlinom PFI (ISO 5264-2:2011)
Ta del ISO 5264 določa metodo laboratorijskega mletja vlaknin z uporabo mlina PFI. Opis je omejen na vzorčenje, pripravo in mletje vlaknin in opreme za mletje.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 5264-2:2011
01-julij-2011
1DGRPHãþD
SIST EN ISO 5264-2:2003
Vlaknine - Laboratorijsko mletje - 2. del: Metoda z mlinom PFI (ISO 5264-2:2011)
Pulps - Laboratory beating - Part 2: PFI mill method (ISO 5264-2:2011)
Faserstoff - Labormahlung - Teil 2: PFI-Mühle-Verfahren (ISO 5264-2:2011)
Pâtes - Raffinage de laboratoire - Partie 2: Méthode au moulin PFI (ISO 5264-2:2011)
Ta slovenski standard je istoveten z: EN ISO 5264-2:2011
ICS:
85.040 Vlaknine Pulps
SIST EN ISO 5264-2:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 5264-2:2011
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SIST EN ISO 5264-2:2011
EUROPEAN STANDARD
EN ISO 5264-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2011
ICS 85.040 Supersedes EN ISO 5264-2:2002
English Version
Pulps - Laboratory beating - Part 2: PFI mill method (ISO 5264-
2:2011)
Pâtes - Raffinage de laboratoire - Partie 2: Méthode au Faserstoff - Labormahlung - Teil 2: PFI-Mühle-Verfahren
moulin PFI (ISO 5264-2:2011) (ISO 5264-2:2011)
This European Standard was approved by CEN on 15 January 2011.
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-CENELEC 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-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5264-2:2011: E
worldwide for CEN national Members.
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SIST EN ISO 5264-2:2011
EN ISO 5264-2:2011 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 5264-2:2011
EN ISO 5264-2:2011 (E)
Foreword
This document (EN ISO 5264-2:2011) 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 August 2011, and conflicting national standards shall be withdrawn at
the latest by August 2011.
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 ISO 5264-2:2002.
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, Croatia, 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 5264-2:2011 has been approved by CEN as a EN ISO 5264-2:2011 without any modification.
3
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SIST EN ISO 5264-2:2011
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SIST EN ISO 5264-2:2011
INTERNATIONAL ISO
STANDARD 5264-2
Third edition
2011-02-15
Pulps — Laboratory beating —
Part 2:
PFI mill method
Pâtes — Raffinage de laboratoire —
Partie 2: Méthode au moulin PFI
Reference number
ISO 5264-2:2011(E)
©
ISO 2011
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SIST EN ISO 5264-2:2011
ISO 5264-2:2011(E)
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ii © ISO 2011 – All rights reserved
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SIST EN ISO 5264-2:2011
ISO 5264-2:2011(E)
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Principle .1
4 Apparatus and auxiliary materials.1
5 Sampling .2
6 Preparation of sample.2
7 Procedure.2
8 Test report.4
Annex A (normative) PFI mill.5
Annex B (normative) Control and maintenance of the PFI mill.8
Annex C (informative) Checking the stability of the PFI mill.10
Bibliography.11
© ISO 2011 – All rights reserved iii
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SIST EN ISO 5264-2:2011
ISO 5264-2:2011(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 5264-2 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps, Subcommittee SC 5,
Test methods and quality specifications for pulps.
This third edition cancels and replaces the second edition (ISO 5264-2:2002), which has been technically
revised.
With regard to ISO 5264-2:2002, the following changes have been made:
a) the normative references have been updated;
b) a more precise description of the PFI mill has been given in Annex A;
c) a new reference pulp for internal control beating has been added to Annex C;
d) editorial updating.
ISO 5264 consists of the following parts, under the general title Pulps — Laboratory beating:
⎯ Part 1: Valley beater method
⎯ Part 2: PFI mill method
iv © ISO 2011 – All rights reserved
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SIST EN ISO 5264-2:2011
ISO 5264-2:2011(E)
Introduction
In view of the widespread use of the following beaters:
⎯ Valley beater,
⎯ PFI mill,
it has been decided to provide guidance on the use of these beaters in order to achieve consistency of results
with each instrument. Although both beaters show similar trends in the effect on pulp properties, there is no
correlation between the actual results obtained with the different types of beaters.
ISO 5264-1 specifies a method of laboratory beating using a Valley beater.
Beating is a preliminary step in the preparation of laboratory sheets for testing the physical properties of pulps.
In the PFI mill, each beating is performed separately, i.e. a new test portion of unbeaten pulp is taken for each
beating.
NOTE A complete test of physical properties normally comprises unbeaten pulp and several beatings of the same
pulp, where the beating is carried out for different numbers of roll revolutions. The number of roll revolutions depends on
the type of pulp and the beating load. After beating, the drainability is measured according to ISO 5267-1 or ISO 5267-2,
[1] [2] [3]
and laboratory sheets are prepared according to ISO 5269-1 , ISO 5269-2 or ISO 5269-3 . Physical testing of the
[4]
laboratory sheets is performed according to ISO 5270 .
© ISO 2011 – All rights reserved v
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SIST EN ISO 5264-2:2011
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SIST EN ISO 5264-2:2011
INTERNATIONAL STANDARD ISO 5264-2:2011(E)
Pulps — Laboratory beating —
Part 2:
PFI mill method
1 Scope
This part of ISO 5264 specifies a method for the laboratory beating of pulp using a PFI mill. The description is
limited to the sampling, preparation and beating of the pulp and the beating equipment.
NOTE Beating is a preliminary step in testing the physical properties of pulp.
In principle, this method is applicable to all kinds of chemical and semi-chemical pulps. In practice, the method
might not give satisfactory results with certain pulps having extremely long fibres.
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 638, Paper, board and pulps — Determination of dry matter content — Oven-drying method
ISO 4119, Pulps — Determination of stock concentration
ISO 5263-1, Pulps — Laboratory wet disintegration — Part 1: Disintegration of chemical pulps
ISO 5267-1, Pulps — Determination of drainability — Part 1: Schopper-Riegler method
ISO 5267-2, Pulps — Determination of drainability — Part 2: “Canadian Standard” freeness method
ISO 7213, Pulps — Sampling for testing
ISO 14487, Pulps — Standard water for physical testing
3 Principle
A measured amount of pulp at a specified stock concentration is beaten between a roll with bars and a
smooth beater housing, both rotating in the same direction, but at different peripheral speeds.
4 Apparatus and auxiliary materials
Use ordinary laboratory equipment and the following.
4.1 PFI mill, as specified in Annex A.
See Annexes B and C.
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SIST EN ISO 5264-2:2011
ISO 5264-2:2011(E)
4.2 Disintegrator, as specified in ISO 5263-1.
4.3 Balance, capable of weighing the sample with an accuracy of at least ±0,2 g.
4.4 Standard water, purified to have an electrical conductivity u 0,25 mS/m at 25 °C, as specified in
ISO 14487.
4.5 A reference pulp, as described in Annex C, kept for beating-control purposes and stored for a
sufficient time for the physical properties to stabilize. The reference pulp should, if possible, be of the same
grade as that normally beaten in the beating equipment concerned. Since some pulp grades are not stable, it
might be necessary to choose another grade.
To minimize a change in the pulp over time, the reference pulp should be kept at room temperature at a
relative humidity range of 40 % to 60 % in a dark and dust-free place.
NOTE Stored under the recommended conditions, the reference pulp will, in most cases, be stable for approximately
10 years. Changes in the level of the tensile strength and tear strength values might be an indication that the reference
pulp is no longer stable. The stability can be checked by measuring the viscosity of the reference pulp, e.g. twice a year.
5 Sampling
If the beating is being done to evaluate a lot of pulp, the sample shall be selected in accordance with
ISO 7213.
If the beating is done on another type of sample, report the source of the sample and, if possible, the sampling
procedure used.
Select the test portions so that they are representative of the gross sample received.
6 Preparation of sample
If the sample is wet or air-dry, weigh a test portion for the determination of the dry-matter content in
accordance with ISO 638. If the sample is in the form of an aqueous pulp suspension, determine the dry-
matter content in accordance with ISO 4119.
Take a test portion of the sample corresponding to (30,0 ± 0,5) g of oven-dry pulp. Do not cut pulp sheets and
avoid the use of cut edges. If the sample is in the form of machine-dried sheets or flash-dried slabs, soak the
pulp thoroughly in 0,5 litre of standard water (4.4) at room temperature for at least 4 h. Tear the soaked pulp
into pieces approximately 25 mm × 25 mm in size. It is essential that the pulp sample be thoroughly softened
by soaking, to ensure that the preliminary disintegration leads to only a minimal beating effect. Wet pulps may
be disintegrated without soaking.
7 Procedure
For each test portion (each degree of beating), carry out the procedure described in 7.1 to 7.3.
7.1 Disintegration
Disintegrate the initially wet portion or the soaked test portion as described in ISO 5263-1. Use standard water
(4.4) at (20 ± 5) °C to give a total volume of (2 000 ± 25) ml. The mass fraction in the disintegrator (4.2) will
then be about 1,5 %.
Pulps having an initial mass fraction of dry matter of 20 % or more shall be disintegrated for
30 000 revolutions of the propeller, whereas pulps having an initial mass fraction of dry matter of < 20 % shall
be disintegrated for 10 000 revolutions of the propeller.
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SIST EN ISO 5264-2:2011
ISO 5264-2:2011(E)
After disintegration, check visually that the pulp is completely disintegrated. If not, continue the disintegration
until complete separation of fibres is achieved.
NOTE A temperature outside the range (20 ± 5) °C can be used for climatic reasons, provided that this is stated in
the test report.
7.2 Thickening
After disintegration, drain the pulp suspension on a Büchner funnel or other suitable device to a mass fraction
between 11 % and
...
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