The American Petroleum Institute’s authorized piping inspectors must have a broad knowledge base relating to maintenance, inspection, alteration and repair of in-service metallic piping systems. The API Piping Inspector Certification examination is designed to determine if applicants have such knowledge

The program benefits employers and the industry as a whole by helping to:

  • Provide a continued high level of safety through the use of inspectors specialized in process piping
  • Improve management control of process unit inspection, repair, alteration and rerating
  • Reduce the potential for inspection delays resulting from regulatory requirements


This course has been designed to train individuals who are interested in obtaining the API 570 Piping Inspector Certification, as well as those who are seeking  broad knowledge base relating to maintenance, inspection, alteration and repair of in-service metallic piping systems ,  understanding of ASME B 31.3 and IX code requirements.  The course material contains specially designed  INDTT course booklet & sets of Open & closed book  questions & classroom exercises.


Engineers, Inspectors Designers & operating persons in the oil, gas and petrochemical industry. Those seeking better understanding of use of codes and standards in piping industries, knowledge of design criteria, repairs alteration and understanding al in service inspection & test requirements.


API Publications:

  • API Standard 570 – Inspection, Repair, Alteration, and Rerating of In-Service Piping Systems
  • API RP 571, Damage mechanisms Affecting Fixed equipment in the Refining Industry
  • API Recommended Practice 574 – Inspection Practices for Piping System Components
  • API RP 577, Welding Inspection and Metallurgy
  • API Recommended Practice 578 – Material Verification Program for New and Existing Alloy Piping Systems

ASME (American Society of Mechanical Engineers) Publications:

  • Boiler and Pressure Vessel Code:
    • Section V, Nondestructive Examination, and
    • Section IX, Welding and brazing Qualifications
    • B16.5, Pipe Flanges and Flanged Fittings
    • B31.3, Process Piping


  • Corrosion rates and inspection intervals
  • Weld joint quality factors , Casting quality factors & increased joint quality factors related calculations
  • Calculating pressure design thickness for  a straight pipe  &  permanent blank .
  • Pressure testing hydrostatic leak testing, pneumatic leak testing & calculations
  • Calculation of minimum metal temperature exempted  from impact testing   &  charpy v-notch impact values .
  • Preheating and heat treatment requirements, weld sizes requiring preheating and/or heat treatment.  holding time, holding temperature, and brinell hardness &  thermal expansion calculations
  • Calculation of minimum wall thickness & working pressures for flanges, dimensions of flanges , Maximum Working Pressure of a flange at  design temperature, flange material and flange class.
  • Minimum required thickness of a permanent blank (asme b31.3, par. 304.5.3)


As in the attached publication effectivity sheet the effective editions of the publications are not required to be carried but will be made available in PDF format during Certification Examination.