Storage Tank Surveys

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IRISNDT provides certified Tank Integrity Assessors (TIA) to perform all type of inspections in accordance with EEMUA 159 and API 653 to ensure the ongoing integrity of our clients’ storage tanks and vessels.


  • In-Service and Out of Service inspections
  • Fitness for Service (FFS) assessments
  • Risk Based Inspections (RBI)
  • Engineering calculation services
  • Tank repair and modification advice
  • Development of future written schemes and inspection frequencies

The integrity team is also supported by a strong NDT division supplying experienced qualified technicians and a vast portfolio of the latest NDT equipment.

IRISNDT has a dedicated commitment to safety and, although we utilize scaffolding and ropes for access, we deploy drones for inspecting supporting roof structures and wind girders. IRISNDT also has a directive to greatly reduce man entries into confined spaces, so we deploy remote robotic systems capable of visual surveys, UT thickness measurements, and surface crack detection.