4 LEVEL III DAILY RESPONSIBILITIES

Defining the Level III Role

A Level III is certified to develop, qualify and approve procedures, establish techniques, comply with codes and standards. A Level II can obtain a Level III certificate in the following NDT Methods:

• Magnetic Particle Testing (MT)
• Liquid Penetrant Testing (PT)
• Radiographic Testing (RT)
• Ultrasonic Testing (UT)
• Electromagnetic Testing (ET)
• Visual Testing (VT)
• Acoustic Emission Testing (AE)
• Guided Wave (GW)
• Laser Testing (LM)
• Leak Testing (LT)
• Magnetic Flux Leakage (MFL)
• Neutron Radiographic Testing (NR)
• Infrared Thermal Testing (NR)
• Vibration Analysis (VA)

Going even further, a Level III can have two very different types of responsibilities depending on the kind of company they work at:

• Working Level III: Responsible for procedures, techniques, quality manual, audits, typically for smaller departments, along with inspection of hardware. Training and supervision of Level I & II personnel.
• Corporate/Responsible Level III: Responsible for procedures, techniques, quality manuals, audits, personnel, and other Level IIIs within their organization

Level III Responsibilities

1. Understanding what an indication is and how it was made

As a Level III you need to understand the manufacturing process to know what caused the indication that may potentially be found. These indications can be different if you are looking at casting, forging, welding, rolled steel, etc. because they all have distinct manufacturing processes. Need to accept or reject on this criterion.

Defects can look similar, but knowledge of the manufacturing process will give you the insight to the type of defect. Knowing the type of defects supports making a better determination of what that indication is. For example, if you are at a test lab inspecting a casting and interpret a forging lap on the casting test piece, the quality of the inspection could be in question.

2. Questioning how specifications affect the NDT line

As a Level III, for example has been contracted at an international NDT company to write and review NDT testing procedures. He draws from fundamental knowledge of the testing method to write procedures and how they are applied to established specifications through his company’s operations. By thinking like a Level I & II, he writes clear acceptance criteria with clear process controls. This gives the customers confidence that they can perform a test without a doubt that they would trust their family using their approved parts. 

Being aware of specifications for pressure vessels (ASME) or welding (AWS), and aerospace (ASTM E1444 and 1417). He stays updated through ASNT publications, national or chapter meetings. An example of a revised specification is the update from mercury vapor to UV-A LED lamps.   

3. Deciding the right equipment/consumables for the job

To prepare for flexibility to test a wide variety of parts, a Level III must plan for versatility in equipment and chemicals.

Example: If you have a specification that calls out post-emulsified penetrant you can’t use a level II water-wash penetrant. The materials must conform to the specification. You have to have specific equipment.

Example: For mag particle you must know the best magnetic field for the application. Fatigue cracks are better found with AC magnetization. Subsurface defects are found better with FWDC.

4. Maintaining certifications for Level I & II personnel

Maintaining annual technical proficiency exams, eye exams, training for new equipment and techniques is an extremely important task for the level 3. Passing exams does not certify an inspector. It is hard work and diligence that earns the inspector the qualifications that allow them to test for certification for a specific NDT method.

All too often I have seen NDT documentation kept in a folder with no organization. In addition to a digital database, maintaining copies of NDT documents in a three-ring binder(s), separated by method and organized by dates, instills a high level of importance for the documents to the Inspector and shows a high level of professionalism to anyone performing an audit or review. Instilling these values will follow the inspectors throughout their careers.