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Standard Insuued on: 1999-06 |
Category No.: | JB | Valid Status: | superseded |
Issued Organization: | 全国无损检测标准化技术委员会 | Issued Date: | 1999-06-28 |
Implemented Date: | 2000-1-1 | Abolished Date: | |
Superseded Standard.: | JB/T 4009-2020 Non-destructive testing-test method for ultrasonic testing and evaluation of discontinuities by contact pulse-echo longitudeinal waves |
Superseded Date: | 2021-1-1 |
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