Steel cord conveyor belts - Methods for the determination of total thickness and cover thickness (ISO 7590:2018)

This document specifies three methods for the measurement of total belt thickness and the thickness of covers of steel cord conveyor belts.
Methods A1 and A2 (micrometer methods) can be used for all steel cord conveyor belts for the measurement of both total belt thickness and cover thickness.
Method B (optical method) is intended for the measurement of cover thickness only. It is not suitable if there is a textile or metal weft, nor if the ends of the steel cords become twisted when cut.

Stahlseil-Fördergurte - Messung der Gesamtdicke und der Deckplattendicke (ISO 7590:2018)

Courroies transporteuses à câbles d'acier - Méthodes de détermination de l'épaisseur totale et de l'épaisseur des revêtements (ISO 7590:2018)

Le présent document spécifie trois méthodes de mesure de l'épaisseur totale des courroies et de l'épaisseur des revêtements de courroies transporteuses à câbles d'acier.
Les méthodes A1 et A2 (méthodes du micromètre) peuvent être utilisées pour toutes les courroies transporteuses à câbles d'acier, pour le mesurage de l'épaisseur totale des courroies et de l'épaisseur du revêtement.
La méthode B (méthode optique) est recommandée uniquement pour le mesurage de l'épaisseur du revêtement. Elle n'est pas appropriée pour les courroies à trame textile ou métallique, ni si les extrémités des câbles d'acier s'entortillent après découpage.

Naprave in sistemi za kontinuirni transport - Trakovi tračnih transporterjev z jeklenim vložkom - Metode za določevanje celotne debeline in debeline zaščitne obloge (ISO 7590:2018)

Ta dokument določa tri metode za merjenje celotne debeline trakov in debeline zaščitne obloge trakov tračnih transporterjev z jeklenim vložkom.
Metodi A1 in A2 (metodi merjenja z mikrometrom) je mogoče uporabljati za merjenje celotne debeline trakov in debeline zaščitne obloge vseh trakov tračnih transporterjev z jeklenim vložkom.
Metoda B (metoda optičnega merjenja) je namenjena samo za merjenje debeline zaščitne obloge in ni ustrezna v primeru tekstilnih ali kovinskih votkovnih niti ter če se konci kovinskih vrvi pri rezanju zvijejo.

General Information

Status
Published
Publication Date
24-Jul-2018
Withdrawal Date
30-Jan-2019
Technical Committee
CEN/TC 188 - Conveyor belts
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
25-Jul-2018
Completion Date
25-Jul-2018

Relations

Effective Date
30-Dec-2015

Overview

EN ISO 7590:2018 - Steel cord conveyor belts - Methods for the determination of total thickness and cover thickness (ISO 7590:2018) is a CEN-endorsed international standard (published July 2018) that specifies three validated measurement methods for assessing the total belt thickness and the top/bottom cover thicknesses of steel-cord conveyor belts. This edition supersedes EN ISO 7590:2009 and aligns with ISO 7590:2018.

Key topics and requirements

  • Scope: Defines three methods for thickness measurement:
    • Method A1 (micrometer) - for total and cover thickness; uses specimen pieces taken across belt width.
    • Method A2 (micrometer) - for total and cover thickness; uses full-width specimens with a removed 20 mm top-cover section.
    • Method B (optical) - for cover thickness only; direct optical measurement on a cut belt end or specimen.
  • Limitations:
    • Method B is not suitable when a textile or metal weft is present or if steel cord ends become twisted when cut.
  • Measurement points:
    • Belt width ≤ 1 000 mm: measure at 3 equidistant points.
    • Belt width > 1 000 mm: measure at 5 equidistant points.
  • Apparatus:
    • Micrometer (Methods A1/A2): dial gauge, flat feet, circular foot 10 mm diameter, pressure (22 ± 5) kPa, graduations of 0.1 mm.
    • Optical instrument (Method B): hand-held magnifier with scale 0.1 mm steps, magnification ≥ 8×.
  • Test specimens:
    • A1: specimens approx. 150 mm long, width equal to two cord pitches.
    • A2: specimen ≥ 50 mm long, full belt width.
    • B: use the visible belt end in situ or specimen ≥ 50 mm long; cord ends must be clean and visible.
  • Measurement principle:
    • Total thickness measured directly with micrometer.
    • Cover thickness measured by either removing covers and subtracting core thickness (A1/A2) or by direct optical measurement (B).
  • Reporting: Arithmetic mean of measurements (3 or 5 points) expressed in millimetres.

Applications and users

  • Quality control and acceptance testing of steel cord conveyor belts in mining, bulk handling, quarrying and heavy industry.
  • Manufacturers and suppliers verifying product specifications and compliance.
  • Testing laboratories performing standardized thickness / cover assessments.
  • Procurement, inspection and maintenance teams requiring reproducible measurement procedures for warranty, conformity and performance evaluation.

Related standards

  • ISO 8094 - referenced for adhesion-strength testing where the same test pieces may be used (method A1).
  • EN 13827 - referenced where cord position measurement aligns with method A2.
  • EN ISO 7590:2018 is the accepted CEN version of ISO 7590:2018.

Keywords: EN ISO 7590:2018, steel cord conveyor belts, cover thickness, total thickness, micrometer method, optical method, conveyor belt testing, quality control.

Frequently Asked Questions

EN ISO 7590:2018 is a standard published by the European Committee for Standardization (CEN). Its full title is "Steel cord conveyor belts - Methods for the determination of total thickness and cover thickness (ISO 7590:2018)". This standard covers: This document specifies three methods for the measurement of total belt thickness and the thickness of covers of steel cord conveyor belts. Methods A1 and A2 (micrometer methods) can be used for all steel cord conveyor belts for the measurement of both total belt thickness and cover thickness. Method B (optical method) is intended for the measurement of cover thickness only. It is not suitable if there is a textile or metal weft, nor if the ends of the steel cords become twisted when cut.

This document specifies three methods for the measurement of total belt thickness and the thickness of covers of steel cord conveyor belts. Methods A1 and A2 (micrometer methods) can be used for all steel cord conveyor belts for the measurement of both total belt thickness and cover thickness. Method B (optical method) is intended for the measurement of cover thickness only. It is not suitable if there is a textile or metal weft, nor if the ends of the steel cords become twisted when cut.

EN ISO 7590:2018 is classified under the following ICS (International Classification for Standards) categories: 53.040.20 - Components for conveyors. The ICS classification helps identify the subject area and facilitates finding related standards.

EN ISO 7590:2018 has the following relationships with other standards: It is inter standard links to EN ISO 7590:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase EN ISO 7590:2018 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


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Steel cord conveyor belts - Methods for the determination of total thickness and cover
thickness (ISO 7590:2018)
Stahlseil-Fördergurte - Messung der Gesamtdicke und der Deckplattendicke (ISO
7590:2018)
Courroies transporteuses à câbles d'acier - Méthodes de détermination de l'épaisseur
totale et de l'épaisseur des revêtements (ISO 7590:2018)
Ta slovenski standard je istoveten z: EN ISO 7590:2018
ICS:
53.040.20 Deli za transporterje Components for conveyors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 7590
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2018
EUROPÄISCHE NORM
ICS 53.040.20 Supersedes EN ISO 7590:2009
English Version
Steel cord conveyor belts - Methods for the determination
of total thickness and cover thickness (ISO 7590:2018)
Courroies transporteuses à câbles d'acier - Méthodes Stahlseil-Fördergurte - Messung der Gesamtdicke und
de détermination de l'épaisseur totale et de l'épaisseur der Deckplattendicke (ISO 7590:2018)
des revêtements (ISO 7590:2018)
This European Standard was approved by CEN on 30 May 2018.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 7590:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 7590:2018) has been prepared by Technical Committee ISO/TC 41 "Pulleys and
belts (including veebelts)" in collaboration with Technical Committee CEN/TC 188 “Conveyor belts” the
secretariat of which is held by SNV.
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 January 2019, and conflicting national standards shall
be withdrawn at the latest by January 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 7590:2009.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 7590:2018 has been approved by CEN as EN ISO 7590:2018 without any modification.

INTERNATIONAL ISO
STANDARD 7590
Sixth edition
2018-05
Steel cord conveyor belts — Methods
for the determination of total
thickness and cover thickness
Courroies transporteuses à câbles d'acier — Méthodes de
détermination de l'épaisseur totale et de l'épaisseur des revêtements
Reference number
ISO 7590:2018(E)
©
ISO 2018
ISO 7590:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 7590:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Procedure. 2
6.1 General . 2
6.2 Measurement points . 2
6.3 Test pieces and test specimens . 2
6.3.1 General. 2
6.3.2 Test pieces and test specimens for method A1 . 3
6.3.3 Test specimens for method A2 . 3
6.3.4 Test specimens for method B . 3
6.4 Measurement of thickness . 3
6.4.1 Method A1 . 3
6.4.2 Method A2 . 4
6.4.3 Method B . 5
7 Test report . 5
Bibliography . 7
ISO 7590:2018(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different typ
...

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The article discusses EN ISO 7590:2018, which specifies three methods for measuring the total thickness and cover thickness of steel cord conveyor belts. Methods A1 and A2 are micrometer methods that can be used for all steel cord conveyor belts, while Method B is an optical method specifically for measuring cover thickness. Method B is not suitable if there are textile or metal wefts or if the ends of the steel cords become twisted when cut.

この記事はEN ISO 7590:2018について取り上げており、この文書では、スチールコードコンベヤーベルトの総厚さとカバー厚さを測定するための3つの方法を規定しています。 A1およびA2の方法(ミクロメーターメソッド)は、すべてのスチールコードコンベヤーベルトについて、総ベルト厚さとカバー厚さの測定に使用することができます。 Bの方法(光学的方法)は、カバー厚さの測定のみを目的としています。織物や金属の織り込みがある場合や、スチールコードの端が切った時に捻じれる場合には適していません。

본 기사는 EN ISO 7590:2018에 대해 다루고 있으며, 이 문서는 스틸 코드 컨베이어 벨트의 총 두께와 커버 두께를 측정하기 위한 세 가지 방법을 규정합니다. A1 및 A2 방법(마이크로미터 방법)은 모든 스틸 코드 컨베이어 벨트에 대해 총 벨트 두께와 커버 두께를 측정하는 데 사용할 수 있습니다. B 방법(광학 방법)은 커버 두께만을 측정하기 위한 방법으로, 텍스타일이나 금속 패인이 존재하거나 스틸 코드의 끝이 자를 때 비틀리게 되는 경우에는 적합하지 않습니다.