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PQT Services is now offering online NDT training

To learn more click here.

eLearning Services


NDT Training
Training available:

  - ET Method
  - MT Method
  - PT Method
  - RT Method
  - UT Method
  - VT Method
  - Radiation Safety

Check our schedule for dates and locations.
Updated: 07/23/2020

Cards Accepted

About Us

Radiation Safety,Training, and NDT Level III Consulting

Founder & President
William C. Plumstead Sr. founded PQT Services Company in 1994 after more than thirty (30) years of continuous technical and management experience in quality assurance and nondestructive examination with corporate employers.

Mr. Plumstead is a licensed professional engineer with an MBA. He is a current ASNT NDT Level III and ACCP Professional Level III (ASNT #7094) in five (5) methods and a Registered Radiation Safety Consultant.

Previous certifications include AWS CWI (Certified Welding Inspector) for twelve (12) years, Navships 250-1500-1 Examiner for nine (9) years, and an Examiner for the South Carolina Quality Award.

Professional society involvement includes:

  • Chairman of the Board for ASNT (1995-96)
  • President of ASNT (1994-95)
  • Chairman of the National Certification Board for ASNT (1989-93) 
  • Awarded the status of ASNT Fellow in 1979
  • Chairman of ASTM Committee E-7 for Nondestructive Testing (1996-98)
  • Honorary member of the ASTM E07 Executive Committee
  • Received the Committee E07 Charles W. Briggs award in 1993
  • ASTM Award of Merit and title of Fellow granted in 2000

Vice President
William C. Plumstead Jr. joined PQT Services Company in 2004 after more than twenty (20) years working in the computer industry. Mr. Plumstead began his NDT career in 2004 as a technician. He is a current ASNT NDT Level III (ASNT #152428) in three (3) methods, a licensed IRRSP Radiographer in both Gamma and X-Ray and a Registered Radiation Safety Consultant. He also has technical knowledge and practical experience in three (3) additional methods. In 2006, he developed and implemented the website for online NDT training.

Mr. Plumstead is a member of ASNT and serves as Secretary of the Penetrating Radiation Committee. He is also a member of ASTM International E07 Nondestructive Testing Committee and serves as Membership Secretary and Vice Chairman of the Editorial Review Subcommittee. He holds a bachelor of science degree.


Outside NDT Level III services and specific outsourcing task services offer support for:

  • Development and Review of Written Practices and Procedures
  • Training and Certification Services
  • Vendor Audits and Qualification Surveys
  • Radiographic Interpretation
  • Third Party Problem Resolution
  • Annual and Quarterly Radiation Surveys
  • Expert Witness Services


PQT Services Company has been privileged to serve such clients as:

  • AlliedSignal Aerospace
  • Chevron
  • Coltec Delavan
  • Fluor Daniel, Inc.
  • Florida Power & Light Co.
  • General Electric Company
  • Milliken
  • National Board of Boiler and Pressure Vessel Inspectors
  • Portland General Electric W.R. Grace Company

Outsource your nondestructive testing needs with
PQT Services Company

Providing value and service excellence to our clients
is not only our mission, it's an obsession.

Fuji Film
Fuji NDT System
GE Film
GE Inspection Technologies
GE X-ray Tubes
Olympus NDT

Delta Airlines
General Electric
Honeywell Aerospace
National Board of Boiler and Pressure Vessel Inspectors
Greenville Business List
SC Commission on Higher Education
International Organizations

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