SYMPOSIA PAPER Published: 01 January 1977
STP27027S

Calibration Blocks for Ultrasonic Testing

Source

The historical development of test blocks is reviewed briefly, leading to the development of the most recent ASTM standards. The large number of test blocks developed by other than ASTM sources is outlined, together with the problems presented by this proliferation of standards.

The current status of ASTM Recommended Practice for Fabricating and Checking Aluminum Ultrasonic Standard Reference Blocks (E 127-75) and ASTM Recommended Practice for Fabrication and Control of Steel Reference Blocks Used in Ultrasonic Inspection (E 428-71(1975)) for flat entry surface standards is discussed, together with the requirements to apply and duplicate the specified calibration procedures.

Current activities of ASTM to improve existing standards are outlined. In conclusion, some requirements for the development of new standards are advanced.

Author Information

Burley, CE
Reynolds Metal Company, Richmond, Va.
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Details
Developed by Committee: E07
Pages: 146–158
DOI: 10.1520/STP27027S
ISBN-EB: 978-0-8031-4697-6
ISBN-13: 978-0-8031-0196-8