ISO TS 25108-2018 PDF

Full title and description

ISO/TS 25108:2018 — Non-destructive testing — NDT personnel training organizations. This Technical Specification provides requirements and recommendations for organisations that deliver training for personnel who perform industrial non-destructive testing (NDT). Its purpose is to harmonize and maintain a consistent standard of training, and to establish minimum requirements for structured training that makes trainees eligible to sit qualification examinations leading to third‑party certification.

Abstract

ISO/TS 25108:2018 specifies organizational, administrative and instructional requirements for NDT training organisations. The document sets out minimum expectations for training programmes, instructor competence, facilities, assessment and recordkeeping so that training is effective, consistent and aligned with recognised third‑party qualification and certification schemes. It is intended to support harmonized training practices across industry and to complement guidance on training syllabuses.

General information

• Status: Published (confirmed by ISO review 16 May 2022)
• Publication date: 23 October 2018
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 19.100 (Non‑destructive testing)
• Edition / version: Edition 1 (2018)
• Number of pages: 19

Scope

This Technical Specification gives requirements and recommendations for organisations that provide training in non‑destructive testing (NDT). It establishes the minimum requirements for the planning, delivery and management of structured NDT training intended to make trainees eligible for qualification examinations and third‑party certification in recognized NDT methods. The document is applicable to general NDT training and is intended to be used together with standards that specify qualification and certification requirements and with documents that define training syllabuses.

Key topics and requirements

• Organizational and administrative requirements for NDT training providers (policies, management responsibilities, quality controls).
• Minimum criteria for training programme design and structured syllabuses aligned with qualification objectives.
• Instructor competence and qualification, including requirements for demonstrable experience and ongoing professional development.
• Training facilities, equipment and calibration/maintenance requirements to ensure realistic practical instruction.
• Assessment and examination practices for measuring trainee achievement (theory and practical assessments) and preparing candidates for third‑party certification.
• Recordkeeping, certification of course completion, and maintenance of training records for traceability.
• Recommendations for linking training outcomes to external qualification/certification schemes.
• Guidance on continual improvement, audit of training activities and ensuring consistency of delivery.

Typical use and users

ISO/TS 25108:2018 is used by organisations that design and deliver NDT training (private training centres, college and vocational providers, employer training departments), by certification and examination bodies to align training with certification requirements, and by employers, engineering firms and quality managers who require consistent, auditable training for their NDT personnel. Regulators and procurement teams may reference it when specifying training expectations for contractors and suppliers.

Related standards

Documents commonly used alongside ISO/TS 25108 include ISO/TS 25107 (NDT training syllabuses), ISO 9712 (qualification and certification of NDT personnel), the withdrawn ISO/TR 25108:2006 (earlier guidance), and general conformity/ personnel‑certification standards such as ISO/IEC 17024. National and industry schemes (for example ASNT and aviation/CEMS specifications) are also frequently referenced when implementing training and qualification processes.

Keywords

non‑destructive testing, NDT, training organisations, training syllabuses, instructor competence, assessment, certification eligibility, third‑party certification, training quality, recordkeeping

FAQ

Q: What is this standard?

A: ISO/TS 25108:2018 is a Technical Specification that defines requirements and recommendations for organisations providing training for non‑destructive testing (NDT) personnel, with the aim of harmonizing training quality and ensuring trainees are prepared for qualification examinations.

Q: What does it cover?

A: It covers organisational and administrative arrangements, programme design, instructor competence, facilities and equipment, assessment practices, recordkeeping and links between training outcomes and third‑party certification schemes.

Q: Who typically uses it?

A: NDT training providers, certification/examination bodies, employers of NDT personnel, quality managers, procurement teams and regulators who need to set or assess training standards.

Q: Is it current or superseded?

A: ISO/TS 25108 was published in October 2018 (Edition 1) and replaced the earlier ISO/TR 25108:2006. The ISO record shows the specification was confirmed at a subsequent review (May 16, 2022); organisations should check their national standards bodies or ISO for any later updates or planned revisions.

Q: Is it part of a series?

A: Yes — it is part of a set of ISO documents addressing NDT training and qualification. It complements ISO/TS 25107 (training syllabuses) and interfaces with ISO 9712 (qualification and certification of NDT personnel) and related guidance on personnel certification.

Q: What are the key keywords?

A: NDT, training, training organisations, instructor competence, assessment, certification, qualification, syllabuses, recordkeeping, quality assurance.