BS EN ISO 7590-2009 Steel cord conveyor belts - Methods for the determination of total thickness and cover thickness《钢丝绳传输带 总厚度和覆层厚度的测定方法》.pdf
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1、BS EN ISO7590:2009ICS 53.040.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDSteel cord conveyorbelts Methods forthe determination oftotal thickness andcover thickness (ISO7590:2009)This British Standard was published under theauthority of the StandardsPolicy
2、and StrategyCommittee on BSI 2009ISBN 978 0 580 57875 5Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 7590:2009National forewordThis British Standard is the UK implementation of EN ISO 7590:2009. Itsupersedes BS EN ISO 7590:2001 which is withdrawn.The UK participation in its pr
3、eparation was entrusted to TechnicalCommittee PRI/67, Conveyor belts.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct applicat
4、ion.Compliance with a British Standard cannot confer immunityfrom legal obligations.28 February2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 7590January 2009ICS 53.040.20 Supersedes EN ISO 7590:2001 English VersionSteel cord conveyor belts - Methods for the determination oftotal thicknes
5、s and cover thickness (ISO 7590:2009)Courroies transporteuses cbles dacier - Mthodes dedtermination de lpaisseur totale et de lpaisseur desrevtements (ISO 7590:2009)This European Standard was approved by CEN on 3 January 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations
6、which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European S
7、tandard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national st
8、andards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Ki
9、ngdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 7590:2009: EBS EN I
10、SO 7590:2009EN ISO 7590:2009 (E) 3 Foreword This document (EN ISO 7590:2009) 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 BSI. This European Standa
11、rd shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2009, and conflicting national standards shall be withdrawn at the latest by July 2009. Attention is drawn to the possibility that some of the elements of this doc
12、ument 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 7590:2001. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are
13、 bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swede
14、n, Switzerland and the United Kingdom. Endorsement notice The text of ISO 7590:2009 has been approved by CEN as a EN ISO 7590:2009 without any modification. BS EN ISO 7590:2009ISO 7590:2009(E) ISO 2009 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worl
15、dwide 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
16、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 i
17、n 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
18、 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 7590 was prepared by Tec
19、hnical Committee ISO/TC 41, Pulleys and belts (including veebelts), Subcommittee SC 3, Conveyor belts. This fifth edition cancels and replaces the fourth edition (ISO 7590:2001), which has been technically revised. BS EN ISO 7590:2009BS EN ISO 7590:2009INTERNATIONAL STANDARD ISO 7590:2009(E) ISO 200
20、9 All rights reserved 1Steel cord conveyor belts Methods for the determination of total thickness and cover thickness 1 Scope This International Standard specifies three methods for the measurement of total belt thickness and the thickness of covers of steel cord conveyor belts. Methods A1 and A2 (m
21、icrometer 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 recommended 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
22、steel cords become twisted when cut. 2 Terms and definitions For the purposes of this document, 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
23、 cover layer 3 Principle The total thickness is measured using a micrometer at a number of specified points depending on belt width. The cover thicknesses are measured either a) by removing the covers, taking further measurements at the same specified points and calculating each of the cover thickne
24、sses by subtraction, or b) by direct measurement using an optical measuring instrument. 4 Apparatus 4.1 Dial gauge micrometer for methods A1 and A2 The instrument shall be graduated every 0,1 mm with flat feet and a circular foot of 10 mm in diameter that exerts a pressure of (22 5) kPa on the test
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