ISO-10920-1997.pdf
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1、INTERNATIONAL STANDARD IS0 10920 First edition 1997-03-I 5 Gas cylinders - 25E taper thread for connection of valves to gas cylinders - Specification Bouteilles ii gaz - Filetages coniques 25E pour le raccordement des robinets sur /es bouteiltes B gaz - Spkcifications This material is reproduced fro
2、m IS0 documents under International Organization for Standardization (ISO) Copyright License number IHSIICCI1996. Not for resale. No part of these IS0 documents may be reproduced in any form, electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or w
3、ith the prior written consent of IS0 (Case postale 56,1211 Geneva 20, Switzerland, Fax +41 22 734 10 79), IHS or the IS0 Licensers members. Reference number IS0 10920:1997(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0
4、 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 to be represented on that committee. International organizations, gover
5、nmental 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 International Standards adopted by the technical committees are circulated to the
6、 member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 10920 was prepared by Technical Committee ISO/TC 58, Gas cylinder, Subcommittee SC 2, Cylinder fittings. 0 IS0 1997 All rights reserv
7、ed. Unless otherwise specified, no part 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 from the publisher. International Organization for Standardization Case postale 56 l CH
8、-1211 Geneve 20 l Switzerland Internet centraliso.ch x.400 c=ch; a=400net; p=iso; o=isocs; s=central Printed in Switzerland ii -,-,- 0 IS0 Introduction This International Standard belongs to a series of standards specifying thread dimensions and gauge requirements. Cylinders intended to contain comp
9、ressed, liquefied or dissolved gas under pressure are fitted with accessories (valves, straight or angle fittings) to allow release of and refilling with, gas. Hereinafter, the term “valve” will apply to such accessories. The connection between cylinder and valve is obtained by assembly of two taper
10、 threads, an external one on the valve stem and an internal one in the cylinder neck, both having the same nominal taper, pitch and thread profile. -,-,- INTERNATIONAL STANDARD 0 IS0 IS0 10920:1997(E) Gas cylinders - 25E taper thread for connection of valves to gas cylinders - Specification 1 Scope
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