SAE ARP2654 Ultrasonic Thickness Testing

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                   Product Code:SAE ARP2654Title:Ultrasonic Thickness TestingIssuing Committee:Ams K Non Destructive Methods And Processes CommitteeScope:  To provide general instructions for accomplishing ultrasonic  thickness measurements.  Measurements can be made from one side  of a material when access to the opposite side is restricted.This Recommended Practice is intended for, but not limited to  use at maintenance and overhaul facilities to inspect aerospace  structures and hardware for material loss or remaining thickness  after rework or fabrication processes.  Due to the number of  variables which can affect the reliability of ultrasonic  thickness measurements, it is only recommended for use when  mechanical methods of measurement are not practical.Rationale:  To provide general instructions for accomplishing ultrasonic  thickness measurements.  Measurements can be made from one side  of a material when access to the opposite side is restricted.This Recommended Practice is intended for, but not limited to  use at maintenance and overhaul facilities to inspect aerospace  structures and hardware for material loss or remaining thickness  after rework or fabrication processes.  Due to the number of  variables which can affect the reliability of ultrasonic  thickness measurements, it is only recommended for use when  mechanical methods of measurement are not practical.