EN ISO 7263:1995

Corrugating medium - Determination of the flat crush resistance after laboratory fluting (ISO 7263:1994)

Wellenrohrpapier - Bestimmung des Flachstauchwiderstandes an labormäßig gewellter Wellpappe (ISO 7263:1994)

Diese internationale Norm legt zwei Prüfverfahren für die Bestimmung des Flachstauchwiderstandes von Wellenbahnen nach labormäßiger Herstellung fest. Diese Verfahren sind für jedes Papier anwendbar, daß für die Herstellung von Wellpappe gewellt wurde.

Papier cannelure pour carton ondulé - Détermination de la résistance à la compression à plat après cannelage en laboratoire (ISO 7263:1994)

Ovalovljeni papir - Določanje ploskovne odpornosti po laboratorijskem ovalovljenju (metoda CMT)

General Information

• Status: Withdrawn
• Publication Date: 09-Feb-1995
• Withdrawal Date: 14-Dec-2008
• ICS: 85.060 - Paper and board
• Technical Committee: CEN/TC 172 - Pulp, paper and board
• Drafting Committee: CEN/TC 172 - Pulp, paper and board
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 15-Dec-2008
• Completion Date: 15-Dec-2008
• Ref Project: SIST EN ISO 7263:1996 - Corrugating medium - Determination of the flat crush resistance after laboratory fluting (ISO 7263:1994)

Relations

• Replaced By: EN ISO 7263:2008 - Corrugating medium - Determination of the flat crush resistance after laboratory fluting (ISO 7263:2008)
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 7263:1996
01-april-1996
2YDORYOMHQLSDSLU'RORþDQMHSORVNRYQHRGSRUQRVWLSRODERUDWRULMVNHP
RYDORYOMHQMXPHWRGD&07
Corrugating medium - Determination of the flat crush resistance after laboratory fluting
(ISO 7263:1994)
Wellenrohrpapier - Bestimmung des Flachstauchwiderstandes an labormäßig gewellter
Wellpappe (ISO 7263:1994)
Papier cannelure pour carton ondulé - Détermination de la résistance a la compression a
plat apres cannelage en laboratoire (ISO 7263:1994)
Ta slovenski standard je istoveten z: EN ISO 7263:1995
ICS:
85.060 Papir, karton in lepenka Paper and board
SIST EN ISO 7263:1996 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7263:1996

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SIST EN ISO 7263:1996

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SIST EN ISO 7263:1996

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SIST EN ISO 7263:1996

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SIST EN ISO 7263:1996

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SIST EN ISO 7263:1996
INTERNATIONAL
ISO
STANDARD
7263
Second edition
1994-12-15
Corrugating medium - Determination of
the flat crush resistance after laboratory
fluting
Papier cannelure pour carton ondul6 - Determination de Ia rhistance 2
Ia compression 6 plat apr& cannelage en laboratoire
Reference number
ISO 7263:1994(E)

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SIST EN ISO 7263:1996
ISO 7263:1994(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, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(1 EC) 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 International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 7263 was prepared by Technical Committee
lSO/rC 6, Paper, board and pulps, Subcommittee SC 2, Test methods
and quality specifications for Paper and board.
This second edition cancels and replaces the first edition
(ISO 7263:1985), which has been technically revised.
0 ISO 1994
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, rncluding photocopying and
microfilm, without Permission In writing from the publisher.
International Organization for Standardization
56 l CH-121 1 Geneve 20 l Switzerland
Case Postale
Printed in Switzerland
ii

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SIST EN ISO 7263:1996
0 ISO ISO 7263:1994(E)
Introduction
The flat crush resistance of laboratory-fluted corrugating medium is re-
garded as an important property because it is an indication of the potential
flat crush resistance of corrugated fibreboard made from that medium.
The corrugated medium is fluted by passing it between heated rollers.
Two different test procedures are then widely used:
a) the fluted Paper is compressed immediately after fluting (i.e. within
15 s);
Paper is conditioned for 30 min to 35 mi n under Standard
b) the fluted
test conditions before being compressed.
laboratory
Procedure a) generally gives considerably higher results but with greater
spread than those obtained with procedure b). The differentes in results
are claimed to be caused by
- the lower moisture content (and thus higher stiffness) of the uncon-
ditioned fluted Paper;
- the Change in flute Profile which occurs during the conditioning period.
Since considerable advantages are claimed for both procedures and both
are widely used, this International Standard describes both procedures.
A method of determining the flat crush resistance of manufactured
fibreboard is given in ISO 3035:1982, Single-faced and singlewall corru-
gated fibreboard - Determination o f fla t crush resis tance.
. . .
Ill

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SIST EN ISO 7263:1996
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SIST EN ISO 7263:1996
ISO 7263: 1994(E)
INTERNATIONAL STANDARD 0 ISO
- Determination of the flat
Corrugating medium
crush resistance after laboratory fluting
4 Principle
1 Scope
Fluting of the Paper by passing it between heated
This International Standard specifies two methods for
rollers and its formation into Single-faced corrugated
the determination of the flat crush resistance of
board using pressure-sensitive adhesive tape as the
corrugating medium after laboratory fluting.
liner. Application of a crushing forte in a direction
The procedures are applicable to any Paper intended
perpendicular to the plane of the Paper and determi-
to be used, after fluting, in the manufacture of corru-
nation of the crushing resistance.
gated fibreboard.
5 Apparatus
2 Normative references
The following Standards contain provisions which,
5.1 Cutting device, for cutting the test pieces.
through reference in this text, constitute provisions
of this International Standard. At the time of publi-
cation, the editions indicated were valid. All Standards
5.2 Fluter, consisting of a pair of matched steel
are subject to revision, and Parties to agreements
corrugating rolls.
based on this International Standard are encouraged
to investigate the possibility of applying the most re-
The rolls shall be capable of being maintained at a
cent editions of the Standards indicated below.
temperature of 175 “C + 8 “C. The temperature may
Members of IEC and ISO maintain registers of cur-
be varied by any suitable method.
rently valid International Standards.
NOTE 1 In Order to optimize the matthing of pairs of
ISO 186: 1994, Paper and board - Sampling to deter-
rolls, pairs of rolls should be selected in which the differ-
mine average quaiity.
ences in dimensions between the two are substantially less
than the tolerantes shown. A differente of rt: 0,l mm or
ISO 187: 1990, Paper, board and pulps - Standard better is recommended. Prior to first use, the rolls should
be run at the operating temperature for about 6 h with a
atmosphere for conditioning and testing and pro-
mild abrasive on the teeth. The two rolls should then be
cedure for monitoring the atmosphere and condition-
marked in some way so that, after removal for cleaning or
ing of samples.
maintenance, they tan be reassembled with exactly the
same teeth in mesh.
3 Definition
One roll is motor-driven at 4,5 r/min + 1,0 r/min and
-
the rolls are held in mesh by a mechanical device
For the purposes of this International Standard, the
which Causes a forte of 100 N + 10 N to be exerted
following definition applies.
between the rolls and to be distributed evenly across
the teeth, under test conditions (sec note 2).
3.1 flat crush resistance: The maximum forte that
a test piece will withstand before the flutes collapse The essential characteristics of each roll are the fol-
under the test conditions specified. lowing.

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SIST EN ISO 7263:1996
ISO 7263:1994( E) 0 ISO
- lateral play shall not exceed 0,05 mm.
Roll diameter 228,5 mm + 0,5 mm
-
Roll thickness 16mm+1mm
-
b) The surfaces of the platens shall be provided with
Number of teeth 84
some means to prevent Slippage of the test piece
during compression, for example, by means of a
Radius of teeth at peak 1,5 mm + 0,l mm
-
matt finish or by being faced with a very fine
Radius of teeth at base 2,0 mm + 0,l mm
-
abrasive Paper such as grade 00.
4,75 mm + 0,05 mm
Depth of teeth
-
Distance between teeth (peak
c) If the tester operates with one fixed platen, the
8,55 mm + 0,05 mm
to peak around the arc) -
other having a direct positive dri
...