This standard specifies standard test pieces used for the calibration, adjustment, and adjustment of flaw detection sensitivity of ultrasonic flaw detection equipment.
JIS Z 2345:2000 history
2018JIS Z 2345-1:2018 Standard test blocks for ultrasonic testing -- Part 1: A1 Standard Test Block
2000JIS Z 2345:2000 Standard test blocks for ultrasonic testing
1994JIS Z 2345:1994 Standard test blocks for ultrasonic testing