철근 콘크리트용 이형 봉강 가스 압접부의초음파 탐상 시험 방법 및 판정 기준
变形钢筋压力焊缝超声波探伤方法及验收准则
2006-11-08
JIS Z 3062-2009
Method and acceptance criteria of ultrasonic examination for gas pressure welds of deformed steel bars for concrete reinforcement
钢筋混凝土用变形钢筋气压焊缝超声波检测方法及验收标准
2009-01-01
ASTM E1961-16(2021)
Standard Practice for Mechanized Ultrasonic Testing of Girth Welds Using Zonal Discrimination with Focused Search Units
使用带聚焦搜索装置的分区鉴别对环形焊缝进行机械化超声波检测的标准实施规程