This procedure has been developed by a TAPPI Task Group to offer a basis for evaluating the skills of technicians who measure the thickness of boiler tubes. The evaluation includes a background interview of each technician, as well as an operative test to objectively determine the technician's ability to accurately calibrate an ultrasonic thickness unit and measure a boiler tube test panel. The test should be conducted by a mill representative knowledgeable of ultrasonic testing.
| Number of Pages : | 8 |
| Published : | 2013 |
