ISO 11922-1:2018

INTERNATIONAL ISO
STANDARD 11922-1
Second edition
2018-01
Thermoplastics pipes for the
conveyance of fluids — Dimensions
and tolerances —
Part 1:
Metric series
Tubes en matières thermoplastiques pour le transport des fluides —
Dimensions et tolérances —
Partie 1: Série métrique
Reference number
ISO 11922-1:2018(E)
©
ISO 2018

---------------------- Page: 1 ----------------------
ISO 11922-1:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2018 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 11922-1:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Tolerances on outside diameters . 3
4.1 Mean outside diameter . 3
4.2 Out-of-roundness of outside diameter . 5
5 Tolerances on wall thickness . 7
5.1 Wall thickness at any point, e .7
5.2 Mean wall thickness, e .
m 10
6 Measurements of dimensions .11
© ISO 2018 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 11922-1:2018(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, governmental 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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights i
...