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| Chinese National Standard Category: Welding and cutting |
| English Title: | Mechanized ultrasonic examination block of girth butt welds in oil ang gas steel pipeline |
| Chinese Title: | 石油天然气钢质管道对接环焊缝全自动超声波检测试块 |
| Standard No.: | SY/T 4112-2007 |
| Category No.: | J33 |
| Issued by: | NDRC |
| Issued on: | 2007-10-08 |
| Implemented on: | 2008-3-1 |
| Status: | superseded |
| Superseded by: | SY/T 4112-2017 Mechanized ultrasonic examination block of girth butt welds in oil and gas steel pipeline |
| Superseded on: | 2017-8-1 |
| Abolished on: | |
| Superseding: | |
| Word Count: | 9000 words |
| Similar Standards: | T/CWAN 0019-2020 T/CWA 0001-2016 T/CWAN 0096-2023 T/CWAN 0091-2023 T/CWAN 0016-2020 T/CWAN 0025-2021 GB/T 15829-2021 HB 462-2008 T/CWAN 0065-2022 T/CWAN 0083-2022 T/CWAN 0056-2021 T/CWAN 0044-2020 T/CWAN 0032-2021 T/CWAN 0031-2021 T/CWAN 0029.5-2021 T/CWAN 0018-2020 T/CWAN 0029.2-2021 T/CWAN 0084-2022 DL/T 5070-1997 T/CWAN 0021-2021 |
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