2024年4月14日发(作者：机绮怀)
5.5 Magnetizing (2)
5.5.1 Magnetizing equipment (2)
5.5.2 Verification of magnetization (3)
5.6 Application techniques (3)
5.6.1 Field directions and testing area (3)
5.6.2 Typical magnetic testing techniques (6)
5.7 Detection media (9)
5.7.1 General (9)
5.7.2 Verification of detection media performance (9)
5.8 Viewing conditions (10)
5.9 Application of detection media (10)
5.10 Overall performance test (10)
5.11 False indications (10)
5.12 Recording of indications (10)
5.13 Demagnetization (11)
5.14 Test report (11)
Annex A (informative) Variables affecting the sensitivity of magnetic particle testing (13)
Bibliography (15)
ISO 2016 – All rights reserved iii
BS EN ISO 17638:2016
ISO 17638:2016(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 /doc/ /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
/doc/ /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:
/doc/ /iso/. The committee responsible for this document is ISO/TC 44, Welding
and allied processes, Subcommittee 5, Testing and inspection of welds.
This second edition cancels and replaces the first edition (ISO 17638:2003), which has been technically revised.
Requests for official interpretations of any aspect of this document 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 /doc/ .
ISO 2016 – All rights reserved
BS EN ISO 17638:2016 INTERNATIONAL STANDARD ISO 17638:2016(E)
Non-destructive testing of welds — Magnetic particle testing
1 Scope
This document specifies techniques for detection of surface imperfections in welds in ferromagnetic materials, including the heat affected zones, by means of magnetic
particle testing. The techniques are suitable for most welding processes and joint configurations. Variations in the basic techniques that will provide a higher or lower test
sensitivity are described in Annex A.
This document does not specify acceptance levels of the indications. Further information on acceptance levels for indications may be found in ISO 23278 or in product or
application standards.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the
edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3059, Non-destructive testing —
Penetrant testing and magnetic particle testing — Viewing conditions ISO 9934-1:2015, Non-destructive testing — Magnetic particle testing — Part 1: General principles
ISO 9934-2, Non-destructive testing — Magnetic particle testing — Part 2: Detection media ISO 9934-3, Non-destructive testing — Magnetic particle testing — Part 3:
Equipment
3 Terms and definitions
2024年4月14日发(作者：机绮怀)
5.5 Magnetizing (2)
5.5.1 Magnetizing equipment (2)
5.5.2 Verification of magnetization (3)
5.6 Application techniques (3)
5.6.1 Field directions and testing area (3)
5.6.2 Typical magnetic testing techniques (6)
5.7 Detection media (9)
5.7.1 General (9)
5.7.2 Verification of detection media performance (9)
5.8 Viewing conditions (10)
5.9 Application of detection media (10)
5.10 Overall performance test (10)
5.11 False indications (10)
5.12 Recording of indications (10)
5.13 Demagnetization (11)
5.14 Test report (11)
Annex A (informative) Variables affecting the sensitivity of magnetic particle testing (13)
Bibliography (15)
ISO 2016 – All rights reserved iii
BS EN ISO 17638:2016
ISO 17638:2016(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 /doc/ /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
/doc/ /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:
/doc/ /iso/. The committee responsible for this document is ISO/TC 44, Welding
and allied processes, Subcommittee 5, Testing and inspection of welds.
This second edition cancels and replaces the first edition (ISO 17638:2003), which has been technically revised.
Requests for official interpretations of any aspect of this document 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 /doc/ .
ISO 2016 – All rights reserved
BS EN ISO 17638:2016 INTERNATIONAL STANDARD ISO 17638:2016(E)
Non-destructive testing of welds — Magnetic particle testing
1 Scope
This document specifies techniques for detection of surface imperfections in welds in ferromagnetic materials, including the heat affected zones, by means of magnetic
particle testing. The techniques are suitable for most welding processes and joint configurations. Variations in the basic techniques that will provide a higher or lower test
sensitivity are described in Annex A.
This document does not specify acceptance levels of the indications. Further information on acceptance levels for indications may be found in ISO 23278 or in product or
application standards.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the
edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3059, Non-destructive testing —
Penetrant testing and magnetic particle testing — Viewing conditions ISO 9934-1:2015, Non-destructive testing — Magnetic particle testing — Part 1: General principles
ISO 9934-2, Non-destructive testing — Magnetic particle testing — Part 2: Detection media ISO 9934-3, Non-destructive testing — Magnetic particle testing — Part 3:
Equipment
3 Terms and definitions