GB/T 18694 Non-destructivetesting--Ultrasonic inspection--Characterization of search unit and sound field
GB/T 18852 Non-destructive testing—Ultrasonic testing—Reference blocks and test procedures for the characterization of contact probe sound beams*, 2020-11-19 Update
GB/T 9445 Non-destructive testing.Qualification and certification of NDT personnel*, 2015-12-10 Update
JB/T 8428 General specification for non-destructive testing ultrasonic test block*, 2015-10-01 Update
JB/T 10559-2006 history
2018JB/T 10559-2018 Ultrasonic testing of non-destructive testing steel welds for hoisting machinery
2006JB/T 10559-2006 Non-desturctive testing of lifting appliances.Ultrasonic testing of steel welds