GB 6249-1986
Replaced
NB/T 20740-2025
Active
Industry standards-Energy
NB/T 20740-2025 Phase array ultrasonic testing of weld seams for austenitic stainless steel piping
NB/T 20740-2025 Phase array ultrasonic testing of weld seams for austenitic stainless steel piping
Basic Information
Standard Code:
NB/T 20740-2025
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Nuclear reactors and nuclear island equipment in nuclear power plants
ICS Name:
Nuclear power stations, safety
Publish Date:
2025-12-18
Implement Date:
2026-06-18
Publisher:
国家能源局
Technical Committee:
中国核电发展中心
Scope
本标准适用于核电厂奥氏体不锈钢管道焊缝相控阵超声波检验工作,其它具有类似结构的奥氏体不锈钢管道焊缝也可参照使用。
Development Information
Drafting Units:
中核武汉核电运行技术股份有限公司、中广核检测技术有限公司、国核电站运行服务技术有限公司、生态环境部华北核与辐射安全监督站、中国核工业二三建设有限公司、三门核电有限公司、中广核苍南核电有限公司、中广核核电运营有限公司、核工业工程研究设计有限公司、一重集团大连核电石化有限公司、东方电气(广州)重型机器有限公司、广西防城港核电有限公司、生态环境部核与辐射安全中心
Drafting Persons:
谢航、聂勇、蔡家藩、成照宇、石欢、余哲、孙兴见、朱序东、杨会敏、肖爱武、王韦强、毛昌森、张进、贾志兴、汪缔洪、冉威、严宇、程明、张立殷、王琪、李海涛、赵立彬
Related Standards
GB/T 12726.1-1991
Replaced
GB/T 12726.1-1991 Radiation monitoring equipment for accident and post-accident conditions in nuclear power plants—Part 1:General requirements
GB/T 13178-1991
Replaced
GB/T 13178-1991 Partially depleted gold silicon surface barrier detectors
GB/T 13180-1991
Replaced
GB/T 13180-1991 G-M counter tubes for detecting γ radiation
GB/T 13182-1991
Replaced
GB/T 13182-1991 Scintillation detectors of sodium iodide (thallium)
GB/T 12726.2-1991
Replaced