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.
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Published: 2013 Number of Pages: 8File Size: 1 file , 110 KB