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Chinese National Standard Category: General organic reagent and solvent |
English Title: | Surfacing procedure qualification and welder performance qualification for high pressure urea equipment |
Chinese Title: | 尿素高压设备堆焊工艺评定 和焊工技能评定 |
Standard No.: | HG/T 3179-2002 |
Category No.: | G63 |
Issued by: | MIIT |
Issued on: | 2002-9-28 |
Implemented on: | 2003-6-1 |
Status: | superseded |
Superseded by: | HG/T 3179-2023 Urea high-pressure equipment surfacing process assessment and welder skill assessment |
Superseded on: | 2024-7-1 |
Abolished on: | |
Superseding: | HG/T 3179-1988ZB |
Word Count: | 7500 words |
Similar Standards: | GB/T 678-1990 HG 3-19959-1976 GB/T 16983-2021 GB/T 678-2023 GB/T 684-2023 GB/T 686-2023 GB/T 1289-2022 GB/T 15895-2021 GB/T 33089-2016 GB/T 33088-2016 GB/T 33090-2016 GB/T 14305-2015 GB/T 15347-2015 GB/T 694-2015 GB/T 1400-2014 GB/T 30040.1-2013 GB/T 685-2013 GB/T 16494-2013 HG/T 3454-2013 HG/T 3462-2013 |
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