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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Status: superseded
Superseded by:HG/T 3179-2023 Urea high-pressure equipment surfacing process assessment and welder skill assessment
Superseded on:2024-7-1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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