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On-site investigations

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Definition: On-site investigations are technical testing and analysis measures carried out directly on installed components or plant equipment. They enable the assessment of condition, integrity and damage mechanisms without complete dismantling. Mobile testing devices and replica techniques are frequently used.

Practical relevance: Typical methods are ultrasonic testing (UT), visual inspection (VT), mobile hardness testing, PMI and metallographic replicas. On-site investigations minimise downtime and support fitness-for-service or RBI assessments. Documentation and traceability are decisive for later assessments.

Decision-making perspectives:

  • Technical decision-makers: Rapid condition assessment and a basis for deciding on continued operation or repair.
  • Purchasing/project management: Reduction of downtime costs and targeted maintenance planning.
  • Science: Comparison of in-situ and laboratory results in terms of significance.
  • Insurance/law: Documented evidence of condition during ongoing operation.

Typical testing or verification methods: UT, VT, MT/PT, mobile hardness testing, PMI, replica metallography.

FAQ:

  • What advantages do on-site investigations offer?
  • They enable a rapid, economical condition assessment without extensive dismantling or transport.
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