ISO 4422-2 PDF

ISO Pipes and fittings made of unplasticized poly(vinyl chloride) ( PVC-U) for water supply – Specifications – Part 2: Pipes (with or. Search. Home · ISO PDF. ISO PDF. March 23, | Author: David Sabai | Category: N/A. DOWNLOAD PDF – KB. federation of national standards bodies (ISO member bodies). . ISO , Pipes and fittings made of unplasticized poly(vinyl chloride).

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Reference number IS0 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, governmental and non-governmental, in liaison with ISO, also take part in the work.

Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.

Together with the other parts, this part of IS0 cancels and replaces IS0 General – Part 2: Pipes with or without integral sockets – Part 3: Fittings and joints – Part 4: Valves and ancillary equipment – Part 5: Each system standard is iiso on a specific material for a specific application.

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They conform to a standard multi-part format, each part dealing with a specific aspect of the overall system. 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.

ISO 给水用未增塑聚氯乙烯(PVC-U)管及配件规范.第3部分配件和接头 – MBA智库文档

Fittings and joints 1 Scope This part of IS0 specifies the characteristics and properties of fittings injection-moulded and post- formed and joints made of unplasticized poly vinyl chloride PVC-Uto be used for buried water mains and services and for water supplies above ground, both inside and outside buildings. Fittings made by hot-gas fusion and hot-plate fusion techniques are not covered by this part of IS0 At the time of publication, the editions indicated were valid.

All standards are subject to revision, and parties to agreements based on this part of IS0 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated ixo.

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Poly vinyl chloride resins. Pipes with or without integral sockets.

Fitness for purpose of the system. The end s of fittings made from pipe shall be square to their axis.

ISO 4422-2-1996 .PDF

NOTE 2 Reinforcement of the mouth of the fitting to an extent sufficient to prevent creep of the socket and sub- sequent extrusion of the sealing ring is permissible. All fittings shall oso permanently marked or labelled to show the following information: PVC-U, and, if applicable, the classification, i.

NOTE 4 Other information, such as the pipe series des- ignation, may be added.

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