ISO INTERNATIONA! STANDARD 10247 First edition 1990-11-15 Corrected and reprinted 1991-12-15 Conveyor belts --- Characteristics of covers - Classification Courroies transporteuses -- Caracteristiques des revetements - Classification Reference number ISO10247:1990(E) ISO 10247:1990(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, govern- mental 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 Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. . Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard Iso 10247 was prepared by Technical Committee Iso/TC 41, Pulleys and belts (including veebelts). AnnexAofthisInternational Standardisforinformation only ISO 1990 or by any means, electronic or mechanical, including photocopying and microfim,without permission in writing from the publisher. InternationalOrganizationforStandardization Case Postale 56. CH-1211 Geneve 20 · Switzerland Printed in Switzerland ii ISO 10247:1990(E) INTERNATIONAL STANDARD Conveyor belts -- Characteristics of covers -- Classification 1 Scope veyor belts assigned to the conveyance of sharp and abrasivematerialscausingsevereweartothebelt, This International Standard establishes the classi- such as metallic ores (as mined), limestone (as fication of covers for general purpose conveyor belts quarried), granite (as quarried), quartz,blast- withtextile ormetal carcasses,forthepurposes of furnace clinker and slag. crushed metallic ores, giving general guidance for applications. This clas- sandstone (as quarried), stone chippings, slate. sification specifies the essential combinations of coke (cold), broken glass and gravel principal characteristics of belt covers and states the corresponding methods of determination. 3.2 category D (severe abrasion service): Covers NOTE 1 It does not, however, infer any systematic re- having the characteristics required for conveyor lationship between the test results and the performance belts assigned to the conveyance of very abrasive of the belt when in service. materials defined by experience in each case. 2 Normative references 3.3 category L (moderate service): Covers having the characteristics required for conveyor belts as- The following standards contain provisions which, signed to the conveyance of: moderately abrasive through reference in this text, constitute provisions materials such as rubble, sand (sharp), superphos- ofthispartofiSO10247.Atthetimeofpublication. phate (lump and powder), bone, coal (surface), the editions indicated were valid. All standards are ashes,unslakedlime and subject to revision, and parties to agreements based slightly abrasive materials, non-abrasive and dry on this part of isO 10247 are encouraged to investi- materials such as sand (smooth), cement (ground), gate the possibility of applying the most recent edi- clay, slaked lime, charcoal, grain, vegetabies, fruit. tions of the standards indicated below. Members of flour. dry powder (inert), wood chips and pulp (dry). IEC and iso maintain registers of currently valid InternationalStandards. NOTE2 The above description of types of service con. ditions is not exhaustive, but serves as an illustration of Iso 37:--1), Rubber, vulcanized or thermoplastic the variety and types of conveyed materials for which Determination of tensile stress-strain properties. each category of cover is sui