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December 28, 20236 min read

How to Choose the Right NDT Service Provider

A practical checklist for asset owners evaluating NDT inspection companies.

Why Provider Selection Matters

The quality of your NDT inspections directly impacts asset safety, regulatory compliance, and maintenance decisions. Investing time in selecting the right provider pays dividends.

Essential Selection Criteria

1. Certifications and Accreditations

  • Personnel certifications: ASNT SNT-TC-1A, ACCP, ISO 9712, PCN
  • Company accreditation: ISO 17025 for testing labs, NADCAP for aerospace
  • Industry-specific: API 510/570/653 for pressure equipment

2. Relevant Experience

  • Years in business and track record
  • Experience with your specific industry
  • Familiarity with your equipment types
  • References from similar projects

3. Equipment and Technology

  • Modern, well-maintained inspection equipment
  • Current calibration certificates
  • Advanced capabilities (PAUT, TOFD) if needed

4. Safety Record

  • EMR (Experience Modification Rate) below 1.0
  • Drug and alcohol testing program
  • Safety training records

5. Insurance Coverage

  • General liability insurance (minimum $1-2M)
  • Professional liability/errors & omissions
  • Workers' compensation coverage

Red Flags to Watch For

Warning Signs

  • ⚠️ Cannot provide certification documentation
  • ⚠️ Significantly cheaper than all competitors
  • ⚠️ No written procedures or quality system
  • ⚠️ Reluctant to provide references
  • ⚠️ Cannot demonstrate calibrated equipment

Find Pre-Vetted NDT Providers

NDT Connect verifies certifications, insurance, and safety records for all providers.

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