National foreword

This British Standard is the UK implementation of EN ISO 17635:2016. It supersedes BS EN ISO 17635:2010 which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee WEE/46, Non-destructive testing.

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.

© The British Standards Institution 2016.

Published by BSI Standards Limited 2016

ISBN 978 0 580 87064 4

ICS 25.160.40

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 December 2016.

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 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.

The committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee SC 5, Testing and inspection of welds.

This third edition cancels and replaces the second edition ( ISO 17635:2010), which has been technically revised. Notably, it has been changed as follows:

International Standards have replaced European standards as normative references;
“examined” has been replaced by “tested” in the whole document;
important modifications have been made to Annex A, Rules and standards to be applied;
Annex C, Non-acceptable indications, has been deleted.

Requests for official interpretations of any aspect of this International Standard should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body. A complete listing of these bodies can be found at www.iso.org.

1 Scope

This document gives guidelines for the choice of non-destructive testing (NDT) methods for welds and evaluation of the results for quality control purposes, based on quality requirements, material, weld thickness, welding process and extent of testing.

This document also specifies general rules and standards to be applied to the different types of testing, for either the methodology or the acceptance levels for metallic materials.

Acceptance levels cannot be a direct interpretation of the quality levels defined in ISO 5817 or ISO 10042. They are linked to the overall quality of the produced batch of welds.

Requirements for acceptance levels for NDT comply with quality levels stated in ISO 5817 or ISO 10042 (moderate, intermediate, stringent) only on a general basis and not in detail for each indication.

Annex A gives correlations between quality, NDT and acceptance level standards.

Annex B gives an overview of the standards linked to quality levels, acceptance levels and NDT methods.

2 Normative references

3 Terms and definitions

4 Abbreviated terms

5 Limitations

5.1 Stage of manufacture

5.2 Extent of testing

5.3 Materials

6 Personnel qualification

7 Testing organization

8 Documentation

8.1 Documentation prior to testing

8.2 Documentation after testing

9 Selection of testing method

9.1 General

9.2 Butt- and T-joints with full penetration

9.3 Butt- and T-joints without full penetration and fillet welds

10 Performance of testing

10.1 Determination of standard to be applied

10.2 Conditions for testing

10.3 Time of testing

10.4 Non-acceptable indications

Bibliography

ISO 17635:2010

Non-destructive testing of welds. General rules for metallic materials

Published:

1 Mar 2010

Withdrawn:

25 Nov 2016