National foreword

This British Standard is the UK implementation of ISO 4065:2018. It supersedes BS ISO 4065:1996, which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee PRI/88, Plastics piping systems.

A list of organizations represented on this committee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2018.

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 identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids.

This third edition cancels and replaces the second edition (ISO 4065:1996), which has been technically revised.

The significant changes are:

S-values and design stresses for 6,0 bar are deleted;
Wall thickness values for pipes with diameters up to 3000 mm are included;
The upper limit for tabled wall thicknesses increased to 150 mm;
Additional pipe series S 10,5, S 13,3 and S 16,7 are left for use in non-pressure purposes only;
Definitions are updated to follow modern plastics piping terminology.
This corrected version of ISO 4065:2018 incorporates the following corrections:
The missing decimal separators in Tables 1 and 2 have been reinserted.

1 Scope

This document specifies the relationship between the nominal wall thicknesse_n and the nominal outside diameterd_n of thermoplastics pipes.

It is applicable to solid-wall thermoplastics pipes of constant circular cross-section along the whole length of the pipe, whatever their method of manufacture, their composition or their intended application.

NOTE Pipes with constant circular cross-section along the whole length of the pipe are commonly known as pipes with smooth external and internal surfaces.

2 Normative references

3 Terms and definitions

4 Calculation of values

4.1 Calculation of S values

4.2 Calculation of wall thicknesses

5 Wall thickness tables

6 Deviations

Bibliography

BS ISO 4065:2018

Thermoplastics pipes. Universal wall thickness table

Current

Published:

31 Jan 2020