SIST ISO 6587:1996

Paper, board and pulps -- Determination of conductivity of aqueous extracts

The method described is applicable to all kinds of paper, board and pulps, except for papers used for electrical purposes. For high purity papers used for electrical purposes, the method used should be that given in IEC 554-2. Conductivity is measured by means of a conductivity meter or resistance bridge, using alternating current.

Papier, carton et pâtes -- Détermination de la conductivité des extraits aqueux

Papir, karton, lepenka in vlaknine - Določanje prevodnosti vodnih ekstraktov

General Information

• Status: Withdrawn
• Publication Date: 31-Mar-1996
• Withdrawal Date: 09-May-2023
• ICS: 85.040 - Pulps
• ICS: 85.060 - Paper and board
• Technical Committee: VPK - Pulp, paper, board and products
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 10-May-2023
• Due Date: 02-Jun-2023
• Completion Date: 10-May-2023
• Ref Project: ISO 6587:1992 - Paper, board and pulps — Determination of conductivity of aqueous extracts

Relations

• Revised: ISO 6587:1980 - Paper, board and pulps — Determination of conductivity of aqueous extracts
• Effective Date: 12-May-2008
• Revised: SIST ISO 6587:2023 - Paper, board and pulps — Determination of conductivity of aqueous extracts
• Effective Date: 01-Jul-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ISO 6587:1996
01-april-1996
3DSLUNDUWRQOHSHQNDLQYODNQLQH'RORþDQMHSUHYRGQRVWLYRGQLKHNVWUDNWRY
Paper, board and pulps -- Determination of conductivity of aqueous extracts
Papier, carton et pâtes -- Détermination de la conductivité des extraits aqueux
Ta slovenski standard je istoveten z: ISO 6587:1992
ICS:
85.040 Vlaknine Pulps
85.060 Papir, karton in lepenka Paper and board
SIST ISO 6587:1996 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 6587:1996

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SIST ISO 6587:1996
ISO
INTERNATIONAL
STANDARD 6587
Second edition
1992-04-15
Paper, board and pulps - Determination of
conductivity of aqueous extracts
- Determination de la conductivitts des extaaits
Papier, carfon et pates
aqueux
Reference number
ISO 6587: 1992(E)

---------------------- Page: 3 ----------------------

SIST ISO 6587:1996
ISO 6587:1992(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. Esch 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, govern-
mental 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.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an Inter-
national Standard requires approval by at least 75 % of the member
bodies casting a vote.
International Standard ISO 6587 was prepared by Technical Committee
ISO/TC 6, Paper, board and pulps, Sub-Committee SC 2, Test methods
and quality specifications for Paper and board.
This second edition cancels and replaces the first edition
(ISO 6587:1980), of which it constitutes a technical revision.
0 ISO 1992
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronie or mechanical, lncluding photocopying and mlcrofilm, without
Permission in wrlting from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii

---------------------- Page: 4 ----------------------

SIST ISO 6587:1996
ISO 6587:1992(E)
INTERNATIONAL STANDARD
Paper, board and pulps - Determination of conductivity of
aqueous extracts
urement of the conductivity of the extract at 25 OC
1 Scope
by means of a conductivity meter or resistance
bridge, using alternating current.
This International Standard specifies a method for
the determination of the conductivity of aqueous ex-
tra& of Paper, board or pulp, these extracts having
4 Reagents
been prepared by a hot or a cold method.
4.1 Distilled or deionized water.
The method is applicable to all kinds of Paper, board
and pulps, except for Papers used for electrical pur-
Distilled or deionized water shall be used through-
poses. For high purity Papers used for electrical
out the test. The conductivity of the water shall not
purposes, the method used should be that given in
exceed 0,2 mS/m after boiling and cooling as speci-
IEC 554-2.
tied in 7.2.2 (see note 2).
NOTES
2 Normative references
Usually, both distillation and deionization are required.
1
The following Standards contain provisions which, Unless great care is exercised when distilling, and with
through reference in this text, constitute provisions the materials employed in the condenser and subsequent
surfaces with which the condensed vapour would possibly
of this International Standard. At the time of publi-
come in contact, the distillare tan fail to resch the re-
cation, the editions indicated were valid. All stan-
quired level of conductivity.
dards are subject to revision, and Parties to
agreements based on this International Standard
2 When it is not possible to obtain water of the specified
are encouraged to investigate the possibility of ap-
purity, water with a higher conductivity may be used, but
plying the most recent editions of the Standards in-
the conductivity of the water used should be stated in the
dicated below. Members of IEC and ISO maintain
test report.
registers of currently valid International Standards.
4.2 Potassium chloride, Standard solutions.
ISO 186:1985, Paper and board - Sampling to deter-
mine average quality.
Use potassium chloride (KCI) of recognized analyti-
cal reagent grade, powdered, or fine crystals. Dry
ISO 287:1985, Paper and board - Determination of
for 2 h at 105 “C + 2 “C and immediately prepare
moisture content - Oven-drying method.
the following two solutions.
ISO 638:1978, Pulps - Determination of dry matter
4.23 0,Ol mol/1 solution.
content.
Dissolve 0,745 5 g of the potassium chloride in water
ISO 7213:1981, Pulps - Sampling for testing. having a conductivity not greater than 0,2 mS/m,
and dilute to 1 000 ml.
IEC 554-23977, Specification for cellulosic Papers for
electrical purposes - Part 2: Methods of test.
4.2.2 0,001 mol/1 solution.
Dilute 100 ml of the 0,Ol mol/1 Solution (4.2.1) to
3 Principle
1 000 ml.
Store the solutions in waxed glass bottles with
A 2 g Sample is extracted for 1 h with 100 ml of
ground glass Stoppers. The conductivity values, in
boiling or cold, distilled or deionized water. Meas-
1

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SIST ISO 6587:1996
ISO 6587:1992(E)
millisiemens per metre, of the two solutions are
6.3 Determination of dry matter content
given in table 1.
Determine the dry matter content in accordance with
ISO 287 for Paper or board and ISO 638 for pulp.
table 1 - Conductivity of potassium chloride
Standard solutions
7 Procedur
...

ISO
INTERNATIONAL
STANDARD 6587
Second edition
1992-04-15
Paper, board and pulps - Determination of
conductivity of aqueous extracts
- Determination de la conductivitts des extaaits
Papier, carfon et pates
aqueux
Reference number
ISO 6587: 1992(E)

---------------------- Page: 1 ----------------------
ISO 6587:1992(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. Esch 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, govern-
mental 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.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an Inter-
national Standard requires approval by at least 75 % of the member
bodies casting a vote.
International Standard ISO 6587 was prepared by Technical Committee
ISO/TC 6, Paper, board and pulps, Sub-Committee SC 2, Test methods
and quality specifications for Paper and board.
This second edition cancels and replaces the first edition
(ISO 6587:1980), of which it constitutes a technical revision.
0 ISO 1992
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronie or mechanical, lncluding photocopying and mlcrofilm, without
Permission in wrlting from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii

---------------------- Page: 2 ----------------------
ISO 6587:1992(E)
INTERNATIONAL STANDARD
Paper, board and pulps - Determination of conductivity of
aqueous extracts
urement of the conductivity of the extract at 25 OC
1 Scope
by means of a conductivity meter or resistance
bridge, using alternating current.
This International Standard specifies a method for
the determination of the conductivity of aqueous ex-
tra& of Paper, board or pulp, these extracts having
4 Reagents
been prepared by a hot or a cold method.
4.1 Distilled or deionized water.
The method is applicable to all kinds of Paper, board
and pulps, except for Papers used for electrical pur-
Distilled or deionized water shall be used through-
poses. For high purity Papers used for electrical
out the test. The conductivity of the water shall not
purposes, the method used should be that given in
exceed 0,2 mS/m after boiling and cooling as speci-
IEC 554-2.
tied in 7.2.2 (see note 2).
NOTES
2 Normative references
Usually, both distillation and deionization are required.
1
The following Standards contain provisions which, Unless great care is exercised when distilling, and with
through reference in this text, constitute provisions the materials employed in the condenser and subsequent
surfaces with which the condensed vapour would possibly
of this International Standard. At the time of publi-
come in contact, the distillare tan fail to resch the re-
cation, the editions indicated were valid. All stan-
quired level of conductivity.
dards are subject to revision, and Parties to
agreements based on this International Standard
2 When it is not possible to obtain water of the specified
are encouraged to investigate the possibility of ap-
purity, water with a higher conductivity may be used, but
plying the most recent editions of the Standards in-
the conductivity of the water used should be stated in the
dicated below. Members of IEC and ISO maintain
test report.
registers of currently valid International Standards.
4.2 Potassium chloride, Standard solutions.
ISO 186:1985, Paper and board - Sampling to deter-
mine average quality.
Use potassium chloride (KCI) of recognized analyti-
cal reagent grade, powdered, or fine crystals. Dry
ISO 287:1985, Paper and board - Determination of
for 2 h at 105 “C + 2 “C and immediately prepare
moisture content - Oven-drying method.
the following two solutions.
ISO 638:1978, Pulps - Determination of dry matter
4.23 0,Ol mol/1 solution.
content.
Dissolve 0,745 5 g of the potassium chloride in water
ISO 7213:1981, Pulps - Sampling for testing. having a conductivity not greater than 0,2 mS/m,
and dilute to 1 000 ml.
IEC 554-23977, Specification for cellulosic Papers for
electrical purposes - Part 2: Methods of test.
4.2.2 0,001 mol/1 solution.
Dilute 100 ml of the 0,Ol mol/1 Solution (4.2.1) to
3 Principle
1 000 ml.
Store the solutions in waxed glass bottles with
A 2 g Sample is extracted for 1 h with 100 ml of
ground glass Stoppers. The conductivity values, in
boiling or cold, distilled or deionized water. Meas-
1

---------------------- Page: 3 ----------------------
ISO 6587:1992(E)
millisiemens per metre, of the two solutions are
6.3 Determination of dry matter content
given in table 1.
Determine the dry matter content in accordance with
ISO 287 for Paper or board and ISO 638 for pulp.
table 1 - Conductivity of potassium chloride
Standard solutions
7 Procedure
Concentration Temperature
Conductivity
mol/1 OC mS/m
7.1 Determination of cell constant
0,Ol 18 122,05
Wash the measuring cell (see 5.3) several times with
water (4.1) and then at least twice with the potass-
20 127,80
ium chloride Standard Solution (4.2.1 or 4.2.2) the
25 140,88
conductivity of which is nearest to that of the extract
being measured.
0,oo 1 25 14,693
Measure the conductance or resistance of the cell,
by means of the conductivity meter or resistance
bridge (5.3), with a fresh Portion of the Same pot-
5 Apparatus
assium chloride Standard Solu
...

ISO
NORME
6587
INTERNATIONALE
Deuxième édition
1992-04-l 5
Papier, carton et pâtes - Détermination de la
conductivité des extraits aqueux
- Defermination of conductivity of aqueous
Paper, board and pulps
extrac ts
-.
---
--
Numéro de référence
---
_-_-~--_-_-
-_.- --.---. .-._ _ _ __ _ ISO 6587: 1992(F)
.

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ISO 6587:1992(F)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une féderation
mondiale d’organismes nationaux de normalisation (comités membres
de I’ISO). L’élaboration des Normes internationales est en général
confiée aux comités techniques de I’ISO. Chaque comité membre inté-
ressé par une étude a le droit de faire partie du comité technique créé
à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I’ISO participent également aux tra-
vaux. L’ISO collabore étroitement avec la Commission électrotechnique
internationale (CEI) en ce qui concerne la normalisation électrotech-
nique.
Les projets de Normes internationales adoptés par les comités techni-
ques sont soumis aux comités membres pour vote. Leur publication
comme Normes internationales requiert l’approbation de 75 % au moins
des comités membres votants.
La Norme internationale ISO 6587 a été élaborée par le comité techni-
que ISO/TC 6, Papiers, cartons et pâtes, sous-comité SC 2, Méthodes
d’essais et spécifications de qualité des papiers et cartons.
Cette deuxième édition annule et remplace la première édition
(ISO 6587:1980), dont elle constitue une révision technique.
0 ISO 1992
Droits de reproduction réservés. Aucune partie de cette publication ne peut être repro-
duite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou
mécanique, y compris la photocopie et les microfilms, sans l’accord écrit de l’éditeur.
Organisation internationale de normalisation
Case Postale 56 l CH-121 1 Genève 20 l Suisse
Imprimé en Suisse
ii

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ISO 6587:1992(F)
NORME INTERNATIONALE
Papier, carton et pâtes - Détermination de la conductivité
des extraits aqueux
3 Principe
1 Domaine d’application
Un échantillon de 2 g est extrait pendant 1 h, avec
La présente Norme internationale prescrit une mé-
thode pour la détermination de la conductivité d’ex- 100 ml d’eau distillée ou déionisée, bouillante ou
traits aqueux de papier, de carton ou de pâte, froide. La conductivité de l’extrait est mesurée à
25 “C, au moyen d’un conductimètre ou d’un pont
extraits préparés par une méthode à chaud ou une
de résistance utilisant un courant alternatif.
méthode à froid.
La méthode est applicable à toutes les sortes de
papiers, cartons et pâtes, à l’exception des papiers
4 Réactifs
à usages électriques. Pour les papiers de pureté
élevée à usage électrique, la méthode à utiliser est
celle prescrite dans la CEI 554-2.
4.1 Eau distillée ou déionisée.
De l’eau distillée ou déionisée doit être utilisée tout
au long de l’essai. La conductivité de l’eau ne doit
pas dépasser 0,2 mS/m, après ébullition et refroi-
2 Références normatives
dissement comme prescrit en 7.2.2 (voir note 2).
Les normes suivantes contiennent des dispositions
NOTES
qui, par suite de la référence qui en est faite,
constituent des dispositions valables pour la pré-
1 Habituellement, la distillation et la déionisation sont
sente Norme internationale. Au moment de la pu-
toutes deux nécessaires. Si l’on ne prend pas de grandes
blication, les éditions indiquées étaient en vigueur. précautions lors de la distillation et dans l’emploi des
matériaux constituant le réfrighant et les surfaces avec
Toute norme est sujette à révision et les parties
lesquelles la vapeur condensée est susceptible d’entrer
prenantes des accords fondés sur la présente
en contact, le distillat risque de ne pas atteindre le niveau
Norme internationale sont invitées à rechercher la
de conductivité requis.
possibilité d’appliquer les éditions les plus récentes
des normes indiquées ci-après. Les membres de la
2 Lorsqu’il n’est pas possible d’obtenir de l’eau de la
CEI et de I’ISO possèdent le registre des Normes
pureté prescrite, une eau d’une conductivité plus élevée
internationales en vigueur à un moment donné.
peut être utilisée, mais la conductivité de l’eau utilisée
doit être indiquee dans le rapport d’essai.
ISO 1863985, Papier et carton - Échantillonnage
pour déterminer /a qualité moyenne.
4.2 Chlorure de potassium, solutions étalons.
ISO 287:1985, Papier et carton - Détermination de
Utiliser du chlorure de potassium (KCI) de qualité
l’humidité - Méthode par séchage A l’étuve.
analytique reconnue, en poudre ou finement cristal-
lisé. Sécher pendant 2 h à 105 “C + 2 “C, puis pré-
ISO 638:1978, Pâtes - Détermination de la teneur en
parer immédiatement les deux solutions suivantes.
matières sèches.
ISO 7213:1981, Pâtes - Échantillonnage pour essais.
4.2.1 Solution à 0,Ol mol/l.
CEI 554-2: 1977, Spécifkation pour papiers cellulosi- Dissoudre 0,745 5 g de chlorure de potassium dans
ques à usages électriques - Partie 2: Méthodes de l’eau ayant une conductivité au plus égale à
d’essai. 0,2 mS/m et diluer à 1 000 ml.

---------------------- Page: 3 ----------------------
ISO 6587:1992(F)
4.2.2 Solution à 0,001 mol/l.
6.2 Préparation de l’échantillon
Diluer 100 ml de la solution à 0,Ol mol/ (4.2.1) à
Découper ou déchirer l’échantillon en morceaux
1 000 ml.
d’environ 5 mm x 5 mm, à partir de zones n’ayant
pas été touchées à mains nues. Bien mélanger les
Conserver les solutions étalons dans des flacons en
morceaux. L’échantillon ne doit à aucun moment,
verre paraffiné à bouchon rodé. Les valeurs des
être touché a mains nues. Des gants de protection
conductivités, en millisiemens par mètre, des deux
propres doivent être portés à tout moment pour
solutions sont données dans le tableau 1.
protéger l’échantillon et les morceaux préparés à
partir de celui-ci. Stocker les échantillons préparés
dans des récipients propres fermés.
Tableau 1 - Conductivité des solutions étalons de
chlorure de potassium
Concentration Température Conductivité
6.3 Détermination de la teneur en matières
sèches
mol/1 “C mS/m
Déterminer la teneur en matières sèches conformé-
0,Ol 18 122,05
ment a I’ISO 287 pour le papier ou le carton, et à
20 127,80 I’ISO 638 pour la pâte.
25
140,88
0,001 25 14,693
7 IVlode opératoire
I
7.1 Dét
...