ISO 18436-2:2014

Overview

ISO 18436-2:2014 - "Condition monitoring and diagnostics of machines - Requirements for qualification and assessment of personnel - Part 2: Vibration condition monitoring and diagnostics" defines competency requirements for personnel who perform vibration analysis (VA) for machinery condition monitoring and diagnostics. It specifies required training, relevant experience, and examination criteria, and establishes a four‑category classification (Categories I–IV) to recognize levels of responsibility and technical capability. Certification or a declaration of conformity is awarded in accordance with ISO 18436-1.

Key topics and requirements

• Four-category classification programme (I–IV) that aligns responsibilities with demonstrated competence:
  • Category I: Routine single-channel data collection under direction; basic awareness of vibration principles and repeatable measurement practice.
  • Category II: Single-channel measurements and basic analysis; ability to define measurement activities, set acquisition parameters, and diagnose common faults.
  • Category III: Design and manage condition-monitoring programmes; specify instrumentation and perform advanced diagnostics (spectra, time waveforms, orbits, enveloping); mentor lower categories.
  • Category IV: Highest-level qualification (requires Categories I–III skills) with authority to direct advanced vibration programs and decisions (standard text defines additional leadership/advanced responsibilities).
• Eligibility criteria: education, documented training (Annex A training course requirements), practical experience and supervised work history.
• Examination and assessment: content and conduct of exams, evidence-based assessment processes per ISO 18436-1.
• Instrumentation and methods: requirements for selecting vibration sensors, acquisition settings, portable and permanently installed systems (scope limited to competency requirements rather than detailed test procedures).
• Normative references and vocabulary: links to ISO 1925, ISO 2041, ISO 13372 and other relevant standards for consistent terminology.

Practical applications

• Establishing credible certification programs for vibration analysts and technicians.
• Defining job descriptions and hiring criteria for reliability engineers, condition‑monitoring technicians, and maintenance teams.
• Structuring training curricula and continuing professional development for predictive maintenance and machinery diagnostics.
• Providing clients and employers with documented evidence of competence to increase confidence in vibration monitoring services and reduce operational risk.
• Guiding contractors and OEMs on appropriate scope of practice and limits of authority for vibration practitioners.

Who should use this standard

• Maintenance managers and plant reliability teams
• Condition monitoring and vibration analysts
• Training providers and assessment/certification bodies
• Equipment manufacturers and maintenance contractors
• Safety and compliance officers implementing predictive maintenance programs

Related standards

• ISO 18436-1 (assessment bodies and assessment process)
• Other parts of ISO 18436 (Parts 3–9 cover training processes and additional technologies)
• ISO 1925, ISO 2041, ISO 13372 (vibration and condition‑monitoring vocabulary)

Keywords: ISO 18436-2:2014, vibration condition monitoring, vibration analysis, personnel qualification, certification, condition monitoring, machinery diagnostics, predictive maintenance.