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Survey & Testing

DCVG / ACVG Coating Defect Survey

Above ground location and sizing of coating holidays on buried pipelines, so that excavation and repair budget is spent only at the points where the coating has actually failed.

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Scope of Work

What This Service Covers

  • DC voltage gradient survey with synchronised interruption
  • AC voltage gradient survey where DCVG is not practical
  • Defect location, %IR sizing and severity classification
  • Prioritised dig list with GPS coordinates
  • Post repair verification survey

Deliverables

  • Coating defect register with %IR and severity grade
  • Prioritised excavation schedule
  • Coating condition assessment for the surveyed section

Applicable Standards

  • NACE SP0502
  • NACE TM0109

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Send us your requirement

Share the line size, route length, soil conditions and the standard you work to. We will revert with a suitable design approach, the scope of work and our offer.

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Speak to us directly

Amit Kumar Giri

Proprietor

+91 89611 74927Chat with us on WhatsApp

B/2/H/10, Parikshit Roy Lane, P.O. Tangra, P.S. Entally,
Kolkata - 700015, West Bengal