SIST EN ISO 505:2025

Conveyor belts - Method for the determination of the tear propagation resistance of textile conveyor belts (ISO 505:2025)

This document specifies a method of test for the measurement of the propagation resistance of an initial tear in textile conveyor belts, either in full thickness or of the carcass only.
This document is applicable to textile belts in installations where there is a risk of longitudinal tearing.

Fördergurte - Verfahren zur Bestimmung der Weiterreißfestigkeit von Textil-Fördergurten (ISO 505:2025)

Dieses Dokument legt ein Verfahren zur Messung der Weiterreißfestigkeit eines vorhandenen Einschnittes an Textil-Fördergurten fest, entweder in voller Dicke des Fördergurtes oder nur in der Karkasse.
Dieses Dokument ist für Textil-Fördergurte anwendbar, die zum Einsatz in Anlagen vorgesehen sind, bei denen die Gefahr des Reißens des Gurtes in Längsrichtung besteht.

Courroies transporteuses - Méthode de détermination de la résistance à la propagation d'une déchirure dans les courroies transporteuses à carcasse textile (ISO 505:2025)

This document specifies a method of test for the measurement of the propagation resistance of an initial tear in textile conveyor belts, either in full thickness or of the carcass only.
This document is applicable to textile belts in installations where there is a risk of longitudinal tearing.

Naprave za kontinuirni transport - Trakovi tračnih transporterjev - Postopek določanja odpornosti proti vzdolžnemu trganju tekstilnih trakov tračnih transporterjev (ISO 505:2025)

Ta dokument določa metodo preskušanja za merjenje odpornosti proti začetnemu vzdolžnemu trganju tekstilnih trakov tračnih transporterjev, bodisi po celotni debelini bodisi zgolj v ogrodju. Ta dokument se uporablja za tekstilne trakove v napravah, kjer obstaja nevarnost raztrganja po dolžini.

General Information

• Status: Published
• Publication Date: 10-Sep-2025
• ICS: 53.040.20 - Components for conveyors
• Technical Committee: DTN - Lift and transport appliances
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 24-Apr-2025
• Due Date: 29-Jun-2025
• Completion Date: 11-Sep-2025
• Ref Project: EN ISO 505:2025 - Conveyor belts - Method for the determination of the tear propagation resistance of textile conveyor belts (ISO 505:2025)

Relations

• Revises: SIST EN ISO 505:2018 - Conveyor belts - Method for the determination of the tear propagation resistance of textile conveyor belts (ISO 505:2017)
• Effective Date: 22-Nov-2023

Overview

EN ISO 505:2025 / ISO 505:2025 specifies a standardized laboratory method to measure the tear propagation resistance of textile conveyor belts. Adopted by CEN as EN ISO 505:2025 (approved 26 March 2025, to be implemented by October 2025), this fifth edition updates the procedure used to quantify the force required to propagate an initial longitudinal tear in either full-thickness belts or the carcass only. It supersedes EN ISO 505:2017 and is identical in text to ISO 505:2025.

Key topics and technical requirements

• Principle: Tensile testing of a prepared test piece to measure the force required to propagate an initial tear.
• Apparatus:
  • Dynamometric tensile testing machine sized so measured forces fall within the upper 90% of its rated capacity.
  • Adjustable separation speed of the jaws at (50 ± 10) mm/min.
  • Free jaw distance adjustable to at least 300 mm.
  • Graphical recording device to log tearing force over test length.
• Test pieces:
  • Rectangular shape, length 300 mm (extendable if required), width (100 ± 1) mm (can be increased to 300 mm if weft threads pull out).
  • Thickness: full belt thickness or carcass only (covers may be removed by stripping/buffing).
  • Two specimens per sample: one in sense A and one in sense B.
  • Sampling longitudinally, minimum 50 mm from belt edges.
• Conditioning:
  • Specimens prepared not less than 16 h after manufacturing; conditioning period not less than 8 h.
  • Condition in accordance with ISO 18573 using atmosphere D or E (or B or C for light belts / carcass samples). In disputes, conditioning = 72 h.
• Procedure:
  • Mount cut ends in the jaws with inner cut edges centered in each jaw.
  • Continue test until tear extends at least 100 mm while recording force.
• Results:
  • Multi-peak tear resistance traces are recorded and analyzed (ISO 6133 referenced for analysis).

Applications and who uses it

• Applications:
  • Quality control and acceptance testing of conveyor belts used in installations where longitudinal tearing is a risk.
  • Comparative evaluation of belt carcass designs, materials and manufacturing processes.
  • Research & development for new textile conveyor belt constructions.
  • Safety assessment and procurement specifications for mining, bulk material handling, ports, and industrial conveyors.
• Users:
  • Belt manufacturers, independent testing laboratories, OEMs, maintenance engineers, procurement specialists, and standards bodies.

Related standards

• ISO 18573 - Conveyor belts: test atmospheres and conditioning periods (referenced for conditioning).
• ISO 6133 - Analysis of multi-peak tear traces (referenced for result analysis).
• ISO 21183-1 - (referenced for light conveyor belt classification in conditioning guidance).
• Supersedes: EN ISO 505:2017.

Keywords: EN ISO 505:2025, ISO 505:2025, conveyor belts, textile conveyor belts, tear propagation resistance, tensile testing, test method, conditioning.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2025
Naprave za kontinuirni transport - Trakovi tračnih transporterjev - Postopek
določanja odpornosti proti vzdolžnemu trganju tekstilnih trakov tračnih
transporterjev (ISO 505:2025)
Conveyor belts - Method for the determination of the tear propagation resistance of
textile conveyor belts (ISO 505:2025)
Fördergurte - Verfahren zur Bestimmung der Weiterreißfestigkeit von Textil-Fördergurten
(ISO 505:2025)
Courroies transporteuses - Méthode de détermination de la résistance à la propagation
d'une déchirure dans les courroies transporteuses à carcasse textile (ISO 505:2025)
Ta slovenski standard je istoveten z: EN ISO 505:2025
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 505
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2025
EUROPÄISCHE NORM
ICS 53.040.20 Supersedes EN ISO 505:2017
English Version
Conveyor belts - Method for the determination of the tear
propagation resistance of textile conveyor belts (ISO
505:2025)
Courroies transporteuses - Méthode de détermination Fördergurte - Verfahren zur Bestimmung der
de la résistance à la propagation d'une déchirure dans Weiterreißfestigkeit von Textil-Fördergurten (ISO
les courroies transporteuses à carcasse textile (ISO 505:2025)
505:2025)
This European Standard was approved by CEN on 26 March 2025.

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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 505:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 505:2025) 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 October 2025, and conflicting national standards shall
be withdrawn at the latest by October 2025.
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 505:2017.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 505:2025 has been approved by CEN as EN ISO 505:2025 without any modification.

International
Standard
ISO 505
Fifth edition
Conveyor belts — Method for
2025-04
the determination of the tear
propagation resistance of textile
conveyor belts
Courroies transporteuses — Méthode de détermination de la
résistance à la propagation d'une déchirure dans les courroies
transporteuses à carcasse textile
Reference number
ISO 505:2025(en) © ISO 2025
ISO 505:2025(en)
© ISO 2025
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 505:2025(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Test pieces . 2
6.1 Method of sampling .2
6.2 Shape and dimensions .2
6.3 Number .2
6.4 Preparation .2
7 Method of test . 3
7.1 Conditioning of test pieces .3
7.2 Test conditions .4
7.3 Procedure .4
7.4 Expression of results . .4
7.5 Test report .5
Bibliography . 6
...