GB/T 7704-1987
Replaced
JB/T 4009-2020
Active
Industry standards-Mechanical
JB/T 4009-2020 Non-destructive testing (NDT) and evaluation of discontinuities using contact ultrasonic transversal pulse-echo methods
JB/T 4009-2020 Non-destructive testing (NDT) and evaluation of discontinuities using contact ultrasonic transversal pulse-echo methods
Basic Information
Standard Code:
JB/T 4009-2020
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Basic standards and general methods
ICS Name:
Non-destructive testing
Publish Date:
2020-04-16
Implement Date:
2021-01-01
Development Information
Replace the following standards
Related Standards
GB/T 11343-1989
Replaced
GB/T 11343-1989 Ultrasonic angle beam examination by the contact method
GB/T 11344-1989
Replaced
GB/T 11344-1989 Measuring thickness by ultrasonic pulse-echo contact method
GB/T 2611-1992
Replaced
GB/T 2611-1992 General requirements for testing machines
GB/T 15823-1995
Replaced
GB/T 15823-1995 Examination for helium leak detecting
GB/T 12604.9-1996
Replaced