EN ISO 7590:2001

SLOVENSKI STANDARD
SIST EN ISO 7590:2002
01-maj-2002
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Steel cord conveyor belts - Methods for the determination of total thickness and cover
thickness (ISO 7590:2001)
Stahlseil-Fördergurte - Messung der Gesamtdicke und Deckplattendicke (ISO
7590:2001)
Courroies transporteuses a câbles d'acier - Méthodes de détermination de l'épaisseur
totale de la courroie et de l'épaisseur des revetements (ISO 7590:2001)
Ta slovenski standard je istoveten z: EN ISO 7590:2001
ICS:
53.040.20 Deli za transporterje Components for conveyors
SIST EN ISO 7590:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7590:2002

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SIST EN ISO 7590:2002
EUROPEAN STANDARD
EN ISO 7590
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2001
ICS 53.040.00
English version
Steel cord conveyor belts - Methods for the determination of
total thickness and cover thickness (ISO 7590:2001)
Courroies transporteuses à câbles d'acier - Méthodes de Stahlseil-Fördergurte - Messung der Gesamtdicke und
détermination de l'épaisseur totale de la courroie et de Deckplattendicke (ISO 7590:2001)
l'épaisseur des revêtements (ISO 7590:2001)
This European Standard was approved by CEN on 10 April 2000.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7590:2001 E
worldwide for CEN national Members.

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SIST EN ISO 7590:2002
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EN ISO 7590:2001
Page
Contents
Foreword 3
1 Scope 4
2 Terms and definitions 4
3 Principle 4
4 Apparatus 4
5 Procedure 5
6 Test report 9

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SIST EN ISO 7590:2002
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EN ISO 7590:2001
Foreword
The text of EN ISO 7590:2001 has been prepared by Technical Committee CEN/TC 188
"Conveyor belts", the secretariat of which is held by BSI, in collaboration with Technical
Committee ISO/TC 41 "Pulleys and belts (including veebelts)".
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 September 2001, and conflicting
national standards shall be withdrawn at the latest by September 2001.
According to the CEN/CENELEC Internal Regulations, the national standards organizations
of the following countries are bound to implement this European Standard: Austria, Belgium,
Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United
Kingdom.

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SIST EN ISO 7590:2002
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EN ISO 7590:2001


1 Scope

This European Standard specifies two methods of measuring the total thickness and the cover
thickness of steel cord conveyor belts.

Method A ,( Micrometer method) can be used for all steel cord conveyor belts for
measurement of both total thickness and cover thickness.

Method B ( Optical method) is recommended for the measurement of cover thicknesses only.
It is not suitable if there is a textile or metal weft , or if the ends of the steel cords become
twisted when cut .




2 Terms and definitions

For the purposes of this European standard the following terms and definitions apply.

2.1
breaker
reinforcement included in the cover

2.2
weft
transverse layer or layers included to reinforce the carcass of the belt and not regarded as part
of the cover layer




3 Principle

The total thickness is measured by micrometer at a number of specified points according to
the belt width.
The cover thicknesses can be determined either:
a) by removing the covers, taking further measurements at the same specified points
and calculating each of the cover thicknesses by subtraction, or,
b) by direct measurement using an optical instrument.


4 Apparatus

4.1 Method A: Dial gauge micrometer, graduated every 0,1 mm. with flat feet, a circular foot
of 10 mm in diameter and exerting a pressure of (22 ± 5) kPa on the specimen.

4.2 Method B: Optical measuring instrument. The measuring instrument is a hand-held
magnifying glass with a scale divided in 0,1 mm steps. The magnification shall be at least 8
times.

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SIST EN ISO 7590:2002
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EN ISO 7590:2001

5 Procedure

5.1 Test pieces

Cut a rectangular test piece across the full belt width at 90
to the belt edge, with the
following dimensions;

5.1.1 For method
...