ISO 9934 Magnetic Particle Testing

ISO 9934 is the international standard for magnetic particle testing, comprising Part 1 (general principles), Part 2 (detection media), and Part 3 (equipment), defining the European/international approach to MT inspection.

Definition

ISO 9934 is the counterpart to ASTM E709 / E1444 and ASME Section V Article 7. Pie-gauge and Bertholt indicator field-strength verification are addressed.

What this document is

The ISO series on magnetic particle testing — Part 1 general principles, Part 2 detection media, Part 3 equipment — covering technique, media performance and equipment requirements.

How it is applied

It separates what the examination requires from what the consumables and equipment must demonstrate, which makes media and equipment verification an explicit and auditable activity.

The common misuse

Verifying equipment and never verifying the detection media. Particle performance degrades in use, and media checks are the part most often missing from records.

Where ISO 9934 Magnetic Particle Testing fits in an inspection programme

A term is only useful when it connects to a decision. ISO 9934 Magnetic Particle Testing appears in written procedures, in technique sheets, and in the records an owner or accreditation body reviews afterwards — which means the way it is defined in your documentation has to match the way it is applied on site. Where the two drift apart, audits find it. Atlantis writes and reviews procedures against the governing codes, trains inspection personnel to apply them, and builds the record-keeping that makes the evidence retrievable years later. Procedure development and code consulting · NDT training and certification · Ask us about your programme.

Related terms

Magnetic Particle Testing (MT) — Magnetic Particle Testing (MT) is a surface and near-surface NDT method for ferromagnetic materials that detects discontinuities by applying a magnetic field and observing the leakage flux attract magnetic particles to the flaw indication.
ISO 9712 NDT Personnel Qualification — ISO 9712 is the international standard for qualification and certification of NDT personnel, defining a third-party central-certification model in which an accredited body conducts written and practical examinations independent of the employer.

More standard terms

ASME Section V · ASME Section VIII · ASME Section IX · ASME Section XI · ASME B31.1 Power Piping · ASME B31.3 Process Piping · ASME B31.8 Gas Transmission and Distribution Piping · ASME B31.4 Liquid Pipelines · API 510 Pressure Vessel Inspection Code · API 570 Piping Inspection Code

Where this comes up in practice

Terms like this one appear in three places that matter commercially: the written practice that governs how your personnel are qualified, the procedures and technique sheets that define how an examination is actually performed, and the evidence an auditor or client asks for when they want to know why an inspection was accepted. Getting the terminology right is the easy part; being able to produce the qualification record, the calibration traceability and the procedure revision that applied on the day of the inspection is the part that decides audits.

Atlantis NDT provides NDT training and certification against ASNT SNT-TC-1A and ISO 9712, ASNT Level III consulting for written practices and procedure approval, inspection management software that holds qualification, calibration and procedure-revision evidence in recoverable form, and an asset integrity platform that binds inspection results to the asset they describe. Browse the full NDT glossary or ask a Level III directly.