ISO INTERNATIONAL 5252 STANDARD Second edition 1991-02-15 Steel tubes ---. Tolerance systems Tubes en acier - Systemes de tolerances Reference number ISO 5252:1991(E) Not for Resale ted without license from IHS 1SO 5252:1991(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (Iso member bodies). The work 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 Draft International Standards adopted by the technical committees are circuiated to the member bodies for voting. Publication as an Inter- bodies casting a vote. International Standard ISo 5252 was prepared by Technical Committee IsO/TC 5, Ferrous metal pipes and metallic fittings. This secondeditioncancels s and replaces the first edition (isO 5252:1977), the standardized tolerances on thickness of which have beentechnically revised. C 1SO 1991 All rights reserved. No part of this publlcatlon may be reproduced or utiized In any form permlssion in writing from the publisher. Internattonal Organizationfor Standardization Case Postale 56. CH-1211 Geneve 20 : switzerland Printed in Swltzerland rightInternationalOrganizationfor Standardization Not for Resale d without license from IHS ISO 5252:1991(E) Introduction This International Standard groups together the majority of the toler- ances on dimensions used by isO/TC 5/SC 1 in the drawing up of its International Standards concerning steel tubes. It is intended for use as a basic document by all iso technical com- mittees concerned with the standardization of steel tubes. It cannot, therefore, be used as a standard for the definition of a product. ii No reproduct Not for Resale