Course Description
- Our advanced HTHA detection and sizing course is designed to educate Advanced UT inspectors in methodologies and techniques to more reliably detect HTHA. This course is founded on extensive work and experience gained during industrial trials as part of the E2G HTHA JIP. Lavender International are custodians of the extensive E2G sample inventory and this will be used for HTHA training and certification purposes.
Learning Overview
- The course will contain in depth training on advanced UT applications, fine tuning of equipment parameters and data acquisition from a variety of thickness and states of material degradation.
- Data analysis will consist of many forms of raw ultrasonic data including TOFD, PAUT and backscatter data.
- Velocity ratio, attenuation and frequency analysis will also be addressed.
- Damage mechanisms of HTHA ranging from colonies of microscopic damage to through wall cracks will be experienced.
- Characterisation of material degradation is a critical part of this course. Sources of false positives will be discussed, material inclusions, stepwise HICC damage and weld back cladding issues are also included.
Availability
USA Office
Houston, Texas
- 19th – 23rd October 2026
We run recertification examinations every week in the majority of our methods.
Please contact us for more details: enquiries@lavender-ndt.com
Course Suitability – Work Experience and Prerequisites
- HTHA or High Temperature Hydrogen Attack is damage caused through hydrogen atoms diffusing into steels that are exposed to high pressure hydrogen at elevated temperatures, typically above 400°C. The hydrogen reacts with the carbon and forms methane gas within the steel. This process leads to fissuring and decarburization causing loss of tensile strength and can be the cause of a sudden catastrophic failure.
Trainees should ideally hold Level 2 TOFD and PAUT certification.
Equipment Required
All other equipment and training materials are provided by Lavender International.
Protective gloves, protective eye glasses and plastic aprons are also available for the use of students.
NOTE
If you wish to bring your own UT set this must be approved by the tutor prior to commencement of the course.
Enquiry
Lavender International do not generally perform site inspections. We do however provide company support by assisting in fine tuning inspection set-ups and overseeing data analysis, and where necessary support specialist applications. Please contact our USA Office Manager, James Wilson, for more information.
