View Historical Standards for A939:

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Document Designation and Title Year Select Item(s) A939 Standard Practice for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings 07(2012) A939 Standard Practice for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings 07 A939 Standard Test Method for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings 96(2006) A939 Standard Test Method for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings 96(2001) A939 Standard Test Method for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings 96