DANSK DS/EN ISO 10893-9:2011 鋼管無損檢測 第9部分:自動超聲波檢測 用于檢測用于制造焊接鋼管的帶材/板材中的層狀缺陷
Non-destructive testing of steel tubes - Part 9: Automated ultrasonic testing for the detection of laminar imperfections in strip/plate used for the manufacture of welded steel tubes