EN ISO 340:2013
(Main)Conveyor belts - Laboratory scale flammability characteristics - Requirements and test method (ISO 340:2013)
Conveyor belts - Laboratory scale flammability characteristics - Requirements and test method (ISO 340:2013)
ISO 340:2013 specifies a method for assessing, on a small scale, the reaction of a conveyor belt to an ignition flame source. It is applicable to conveyor belts having a textile carcass as well as steel cord conveyor belts.
Fördergurte - Brandverhalten unter Laborbedingungen - Anforderungen und Prüfung (ISO 340:2013)
Diese Internationale Norm legt ein Prüfverfahren zur Bewertung eines Fördergurts im kleinen Maßstab fest, der einer Flamme als Zündquelle ausgesetzt ist. Dieses ist sowohl bei Textil- als auch bei Stahlseilfördergurten anwendbar.
Courroies transporteuses - Caractéristiques d'inflammabilité d'échelle de laboratoire - Exigences et méthode d'essai (ISO 340:2013)
L'ISO 340:2013 spécifie une méthode permettant d'évaluer, à petite échelle, la réaction d'une courroie transporteuse à une source d'allumage avec flamme. Elle est applicable aux courroies transporteuses à carcasse textile de même qu'à celles à câble acier.
Naprave za kontinuirni transport - Trakovi tračnih transporterjev - Laboratorijska lestvica lastnosti gorljivosti (vnetljivosti) - Zahteve in preskusna metoda (ISO 340:2013)
Ta mednarodni standard določa metodo za ocenjevanje odziva trakov tračnih transporterjev v majhnem merilu na vir vžiga, tj. odprti plamen. Uporablja se za trake tračnih transporterjev, ki imajo trup iz tekstila, in transporterje, ki imajo železni kabel.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2013
1DGRPHãþD
SIST EN ISO 340:2005
1DSUDYH]DNRQWLQXLUQLWUDQVSRUW7UDNRYLWUDþQLKWUDQVSRUWHUMHY/DERUDWRULMVND
OHVWYLFDODVWQRVWLJRUOMLYRVWL YQHWOMLYRVWL =DKWHYHLQSUHVNXVQDPHWRGD ,62
Conveyor belts - Laboratory scale flammability characteristics - Requirements and test
method (ISO 340:2013)
Courroies transporteuses - Caractéristiques d'inflammabilité d'échelle de laboratoire -
Exigences et méthode d'essai (ISO 340:2013)
Ta slovenski standard je istoveten z: EN ISO 340:2013
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
53.040.20 Deli za transporterje Components for conveyors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 340
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2013
ICS 13.220.40; 53.040.20 Supersedes EN ISO 340:2004
English Version
Conveyor belts - Laboratory scale flammability characteristics -
Requirements and test method (ISO 340:2013)
Courroies transporteuses - Caractéristiques
d'inflammabilité d'échelle de laboratoire - Exigences et
méthode d'essai (ISO 340:2013)
This European Standard was approved by CEN on 21 January 2013.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 340:2013: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 340:2013) 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 2013, and conflicting national standards shall be withdrawn at
the latest by October 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 340:2004.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 340:2013 has been approved by CEN as EN ISO 340:2013 without any modification.
INTERNATIONAL ISO
STANDARD 340
Fourth edition
2013-04-01
Conveyor belts — Laboratory scale
flammability characteristics —
Requirements and test method
Courroies transporteuses — Caractéristiques d’inflammabilité
d’échelle de laboratoire — Exigences et méthode d’essai
Reference number
ISO 340:2013(E)
©
ISO 2013
ISO 340:2013(E)
© ISO 2013
All rights reserved. Unless otherwise specified, 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.
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Published in Switzerland
ii © ISO 2013 – All rights reserved
ISO 340:2013(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 1
4.1 Periods of afterflame (after removal of the burner) . 1
4.2 Non-reappearance of flame (after applying a current of air) . 2
5 Test method . 2
5.1 Health and safety . 2
5.2 Principle . 2
5.3 Test pieces . 2
5.4 Apparatus . 3
5.5 Location of test . 5
5.6 Conditioning of test pieces . 5
5.7 Procedure . 5
5.8 Expression of results . 5
6 Test report . 6
Bibliography . 7
ISO 340:2013(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 340 was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts),
Subcommittee SC 3, Conveyor belts.
This fourth edition cancels and replaces the third edition (ISO 340:2004), which has been technically
revised. The word ‘combustion’ has been changed to ‘flame’.
iv © ISO 2013 – All rights reserved
INTERNATIONAL STANDARD ISO 340:2013(E)
Conveyor belts — Laboratory scale flammability
characteristics — Requirements and test method
CAUTION — This method of test is not designed to assess the fire hazard of any given product.
The results may help in the assessment of ignition hazard but should not be used in isolation as
evidence that a product or material is safe.
1 Scope
This International Standard specifies a method for assessing, on a small scale, the reaction of a conveyor
belt to an ignition flame source. It is applicable to conveyor belts having a textile carcass as well as steel
cord conveyor belts.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 8056-1, Aircraft — Nickel-chromium and nickel-aluminium thermocouple extension cables — Part 1:
Conductors — General requirements and tests
ISO 9162, Petroleum products — Fuels (class F) — Liquefied petroleum gases — Specifications
ISO 18573, Conveyor belts — Test atmospheres and conditioning periods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
afterflame
flame which persists after the ignition source has been removed
[SOURCE: ISO 13943:2008, 4.6]
3.2
flame
zone of combustion in the gaseous phase, usually with emission of light
[SOURCE: ISO 13943:2008, 4.133]
3.3
flame
to undergo combustion in the gaseous phase with emission of light
[SOURCE: ISO 13943:2008, 4.134]
4 Requirements
4.1 Periods of afterflame (after removal of the burner)
The sum of the periods of flame for each of the series of six tests (see 5.3) shall be less than 45 s and no
individual value shall be greater than 15 s (see 5.7.5).
ISO 340:2013(E)
4.2 Non-reappearance of flame (after applying a current of air)
The flame shall not re-appear (see 5.7.6).
5 Test method
5.1 Health and safety
5.1.1 Smoke and fumes
The ignition and burning of polymeric materials can cause smoke and toxic gases to be released, which
can affect the health of operators. It is therefore of great importance that suitable means be provided to
clear the test area of smoke and fumes.
5.1.2 Handling, storage and disposal of liquefied petroleum gas containers
All the relevant local safety regulations shall be taken into account for the handling and storage of
liquefied petroleum gas (LPG) and for the disposal of used LPG containers.
If local safety regulations require the LPG cylinders to be stored in an environment that is cooler than the
test area or some distance from the test rig, a sufficient length of tubing is needed inside the controlled
environment to ensure that the gas equilibrates to the required temperature before flow measurement.
One way to facilitate this is to pass the gas (before flow measurement) through a metal tube immersed
in water maintained at 25 °C.
5.2 Principle
A test piece cut from a conveyor belt is suspended vertically above a gas flame for a specified time, after
which the gas flame is removed. The afterflame time is measured. Any re-flame is noted w
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