WORK PROCESS
NONDESTRUCTIVE TESTER
O*NET/SOC CODE: 17-3029.99 RAPIDS CODE: 1010
Description: Conducts radiographic, penetrant, ultrasonic and magnetic particle tests on metal parts to determine if parts meet nondestructive specifications: Reviews test orders to determine type of test requested, test procedures to follow, and part acceptability criteria. Applies agents, such as cleaners, penetrants, and developers, and couplant (light oil which acts as medium), to parts, or heats parts in oven, to prepare parts for testing. Determines test equipment settings according to type of metal, thickness, distance from test equipment, and related variables, using standard formulas. Calibrates test equipment, such as magnetic particle, x-ray, and ultrasonic contact machines, to standard settings, following manual instructions. Sets up equipment to perform tests, and conducts tests on parts, following procedures established for specified tests performed. Examines surface-treated materials during penetrant and magnetic particle tests to locate and identify cracks or other defects, using black light. Moves transducer probe across part when conducting ultrasonic tests and observes CRT (cathode ray tube) screen to detect and locate discontinuities in metal structure. Examines film when conducting radiographic tests to locate structural or welding flaws. Marks tested parts to indicate defective areas. Evaluates test results against designated standards, utilizing knowledge of metals and testing experience. Prepares reports outlining findings and conclusions. May perform similar tests on nonmetallic parts or structures.
ON-THE-JOB TRAINING:
APPROXIMATE HOURS
A. GENERAL ADMINISTRATION
200
1. Maintain directives
2. Maintain publications
3. Maintain logs and records
B. TECHNICAL ADMINISTRATION
100
1. Use publications, manuals, and directives
2. Prepare reports
C. MECHANICAL MAINTENANCE
400
1. Proper use and care of test equipment
2. Perform preventive maintenance on test equipment
D. LOGISTICS
200
1. Order parts and supplies
2. Order publications and manuals
E. SAFETY
100
1. Conform to prescsribed safety standards
F. OPERATIONS
1000
1. Demonstrate the knowledge of materials and methods of preparation for testing.
2. Operate the following types of non-destructive testing equipment: dye penetration, magnetic particle, eddy current, ultrasound, and x-ray.
TOTAL HOURS
2000
