1、BSI Standards PublicationBS EN ISO 16851:2013T e x t i l e c o n v e y o r b e l t s Determination of the net length of an endless (spliced) conveyor beltBS EN ISO 16851:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO16851:2013. It is identical to ISO 1
2、6851:2012. It supersedes BS EN ISO16851:2004 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/67, Conveyor belts.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to inc
3、lude all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 77360 0ICS 53.040.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This Brit
4、ish Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2013.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16851 June 2013 ICS 53.040.20 Supersedes EN ISO 16851:2004English Version Textile
5、 conveyor belts - Determination of the net length of an endless (spliced) conveyor belt (ISO 16851:2012) Courroies transporteuses carcasse textile - Mthode de mesurage de la longueur nette dune courroie transporteuse sans fin (jonctionne) (ISO 16851:2012) Textilfrdergurte - Bestimmung der Lnge eines
6、 endlosen Frdergurtes (ISO 16851:2012) This European Standard was approved by CEN on 7 June 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
7、-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 translat
8、ion 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,
9、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 CO
10、MIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 16851:2013: EBS EN ISO 16851:2013EN ISO 16851:2013 (E) 3 Fore
11、word The text of ISO 16851:2012 has been prepared by Technical Committee ISO/TC 41“Pulleys and belts (including veebelts)” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 16851:2013 by Technical Committee CEN/TC 188 “Conveyor belts” the secretariat of wh
12、ich 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 December 2013, and conflicting national standards shall be withdrawn at the latest by December 2013. Attention is drawn to the p
13、ossibility 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 16851:2004. According to the CEN-CENELEC Internal Regulations, the national stand
14、ards 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, Lu
15、xembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16851:2012 has been approved by CEN as EN ISO 16851:2013 without any modification. BS EN ISO 16851:2013ISO 16851:2012(E)
16、ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Apparatus 13 Procedure 14 Calculation and expression of results . 25 Test report . 2Bibliography . 3BS EN ISO 16851:2013ISO 16851:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of na
17、tional 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. Intern
18、ational 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 r
19、ules 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
20、 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 16851 was prepared by Technical Committee TC 41, P
21、ulleys and belts (including veebelts), Subcommittee SC 3, Conveyor belts,.This second edition cancels and replaces the first edition (ISO 16851:2004), which has been technically revised.iv ISO 2012 All rights reservedBS EN ISO 16851:2013INTERNATIONAL STANDARD ISO 16851:2012(E)Textile conveyor belts
22、Determination of the net length of an endless (spliced) conveyor belt1 ScopeThis International Standard specifies a method for determining the net length of an endless (spliced) conveyor belt.It applies to all types of construction of conveyor belting with the exception of belts containing steel cor
23、d reinforcement. It is not suitable or valid for light conveyor belts described in ISO 21183-13.2 Apparatus2.1 Steel tape measure, graduated in millimetres.For measurement to be accurate, it is essential that the tape be calibrated or subject to inspection.3 ProcedureLay out the endless conveyor bel
24、t so that it is flat and free from tension.Using the flat part of the belt only, as indicated in Figure 1, place a mark on one edge of the inside surface at the point at which measurements are to begin (i.e. point A).Mark point B further along the flat part of the belt as follows:a) for belts up to
25、30 m in circumferential length, the individual measurements shall be between one quarter and one third of the nominal circumferential length, except the final individual measurement, which may be less than one quarter of the nominal circumferential length;b) for belts greater than 30 m in circumfere
26、ntial length, the individual measurements shall be between 7,5 m long and not more than one third of the nominal circumferential length, except the final individual measurement, which may be less than 7,5 m long.Measure and record the distance AB, between points A and B.Rotate the belt and make cons
27、ecutive measurements along the inside surface of the flat part of the belt only. Designate the individual measurements as AB, BC, CD, etc., continuing until the last measurement XA can be taken.In the event of a dispute, measurements should be taken at one of the standard atmospheres given in ISO 18
28、5732, as agreed between the supplier and customer.A B Figure 1 Measurement of the length of an endless conveyor belt ISO 2012 All rights reserved 1BS EN ISO 16851:2013ISO 16851:2012(E)4 Calculation and expression of resultsCalculate the net endless length, le, of the conveyor belt as follows:le = AB
29、 + BC + CD + XA d where d is the thickness of the belt.By taking measurements on the flat part of the belt only, the length along the neutral axis is obtained. To allow for the compression of the inside surface, it is necessary to deduct the amount d in order to obtain the true inside length.Express
30、 the results in millimetres.NOTE Tolerances on lengths of endless conveyor belts are given in ISO 148901.5 Test reportThe test report shall include the following:a) reference to this International Standard, i.e. ISO 16851;b) identification of the belt tested;c) net length of the conveyor belt, in mi
31、llimetres;d) date on which the belt is measured.2 ISO 2012 All rights reservedBS EN ISO 16851:2013ISO 16851:2012(E)Bibliography1 ISO 14890, Conveyor belts Specification for rubber- or plastics-covered conveyor belts of textile construction for general use2 ISO 18573, Conveyor belts Test atmospheres
32、and conditioning periods3 ISO 21183-1, Light conveyor belts Part 1: Principal characteristics and applications ISO 2012 All rights reserved 3This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-rela
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