ISO-6945-1991.pdf
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1、STD=ISO b945-ENGL 3991 4851903 077552b 471 W INTERNATIONAL STANDARD IS0 6945 Sedond edition 1991-12-01 AMENDMENT 1 1998-12-1 5 Rubber hoses - Determination of abrasion resistance of the outer cover AMENDMENT 1 Tuyaux en caoutchouc - Dtermination de la rsistance a labrasion du revtement extrieur AMEN
2、DEMENT I This material is reproduced from IS0 documents under International Organization for Standardization (ISO) Copyright License Number IHSIICCI1996. Not for resale. No patt of these IS0 documents may be reproduced in any form, electronic retrieval system or otherwise, except as allowed in the c
3、opyright law of the country of use, or with the prior written consent of IS0 (Case postale 56, 121 1 Geneva 20. Switzerland, Fax +41 22 734 10 791, IHS or the IS0 Licensors members. Reference number IS0 6945:1991/Amd.l:1998(E) Copyright International Organization for Standardization Provided by IHS
4、under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:22:55 MDTNo reproduction or networking permitted without license from IHS -,-,- STDmISO bS45-ENGL 3993 4853903 O775527 308 D IS0 6945:1991/Amd.l:1998(E) Foreword IS0 (the International Organization for Standa
5、rdization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right t
6、o be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft Internation
7、al 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. Amendment 1 to IS0 69451 991 was prepared by Technical Committee ISO/TC 45, Rubber and rub
8、ber products, Subcommittee SC 1, Hoses (rubber andplastics). Q IS0 1998 All rights reserved. Unless othemise specified. no pari of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing
9、 from the publisher. Intemational Organization for Standardization Case postale 56 CH-121 1 Genve 20 Switzerland Internet is0 8 iso.ch Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for
10、 Resale, 04/24/2007 10:22:55 MDTNo reproduction or networking permitted without license from IHS -,-,- - STDmISO b945-ENGL 3993 m 4853903 0775528 244 m o IS0 IS0 6945:1991/Amd.l:1998(E) Rubber hoses - Determination of abrasion resistance of the outer cover AMENDMENT 1 Page 3 Clause 6 Replace th sond
11、 paragraph by th following text: “Place the abrading tool (3.3) in contact with the test piece, apply the vertical static force F as specified in the relevant product standard, and start the machine (3.1). If the product standard does not specify the force F, apply a vertical static force of 50 N f
12、0,5 N and start the machine. Continue until the specified number of cycles has been completed, then remove the test assembly from the apparatus and re-weigh the test piece either on or off the mandrel, as for the initial weighing. It is important to remove any loose particles of cover compound prior
13、 to weighing. Record the mass (m2) and the number of cycles completed. NOTE 2 the latter being selected where higher abrasion resistance of the cover is expected.” For guidance in preparing requirements in product standards, the static force should be 50 N or 100 N, 1 Copyright International Organiz
14、ation for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:22:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license
15、 with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:22:55 MDTNo reproduction or networking permitted without license from IHS -,-,- I N TE R NATI O NA L STANDARD IS0 6945 Second edition 199 1-1 2-0 1 Rubber hoses - Determination of abrasion resistance of the outer cover Tu
16、yaux en caoutchouc - Dtermination de la rsistance labrasion du revtement extrieur Reference number IS0 6945:1991(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:22:55 MDTNo reprodu
17、ction or networking permitted without license from IHS -,-,- IS0 b945 91 W 4851903 0112824 5 IS0 6945:1991(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing international Standards is
18、 normally carried out through IS0 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 pa
19、rt in the work. IS0 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 St
20、andard requires approval by at least 75% of the member bodies casting a vote. International Standard IS0 6945 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Sub-Committee SC 1, Hoses (rubber and plastics). This second edition cancels and replaces the first edition (IS0 69
21、45:1983), of which it constitutes a technical revision. 8 is0 1991 Ail rights reserved. No part of this publication may be reproduced or utllized in any form or by any means, electronic or mechanical, including photocopying and mlcrofllm, without permisslon in writing from the publisher. Internation
22、al Organization for Standardization Case Postale 56 CH-1211 Genve 20 Switzerland Prlnted in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Defense Supply Ctr/9960866100 Not for Resale, 04/24/2007 10:22:55 MDTNo reproduction or net
23、working permitted without license from IHS -,-,- IS0 6945 91 = 4851903 OLL2825 7 INTERNATIONAL STANDARD IS0 6945:1991(E) Rubber hoses - Determination of abrasion resistance of the outer cover 1 Scope This International Standard specifies a method for the determination of the abrasion resistance of t
24、he outer cover of rubber hoses. This method is intended primarily for testing hy- draulic hoses having textile or wire reinforcement and a nominally smooth and parallel cover, and other hoses of a similar type. The method is not intended for predicting product abrasion life, but is suitable for the
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